Check this out.!!!!
05-24-2007, 10:46 PM
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Check this out.!!!!
Some people are saying that I had an air leak with my 2.5R that was repaired and sent back to me today. The work order only states that they replaced a worn Piston and sleeve and put in a new glow plug. But I noticed when I was running the 2.5R before it burned up I would see bubbles around the glow plug. I tried to tighten the glow plug as much as I could but it still had the bubbles, Now I'm noticing it on my 3.3 engine... Any suggestions??
05-24-2007, 10:49 PM
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RE: Check this out.!!!!
the exact same thing happened to me...but before I had time to fix it my 2.5R died...I thought it was just something boiling around the edge but it even happened when I would first start my car...idk
05-24-2007, 10:58 PM
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RE: Check this out.!!!!
I checked the threads and it's not crossed. Also if they were traxxas should of caught that. From what I gather they tore the whole engine apart. I haven't started the 2.5R yet But yea just before mine died it would do it when the engine temps were up around 140+ But I noticed that the whole time I had the engine it did it, not just at the end but since it was brand new first time I ran it during break-in it did it.. Same with this 3.3 I noticed it was doing it also during break-in. I'll have to call them tomorrow and get some info on this. Feel free to still post your experiences or issues with this matter. Maybe it wasn't my fault that the engine burned up after all. And what's this about them replacing bearings? They didn't do any of that. Maybe Traxxas__Tech could look into this for us.
05-24-2007, 11:29 PM
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RE: Check this out.!!!!
I checked the washer is on there. I'll try flipping the washer tomorrow. and I'm using the Actual Traxxas replacement plugs for the engines so there should be no question if it's the right length or not. And it's not just happening with 1 plug it's every plug that I put in there. I went though about 15 plugs with the 2.5 before it took a crap and each and everyone did the same thing. I'm on plug number 2 with the new 3.3 and both the original and the second one I put in are doing it. I've yet to use a plug that doesn't have the mysterious bubble around the plug. It almost looks as if it's oil that's bubbling hot. I bought 12 brand new plugs that are the traxxas replacement plugs when i picked up the 3.3, I keep plenty of spares on hand. thanks for the responses so far.
I've even tried different brands of plugs with the 2.5r. same results.
I've even tried different brands of plugs with the 2.5r. same results.
05-25-2007, 04:02 AM
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RE: Check this out.!!!!
if you try a different copper gasket and it does not work it means the ehad was milled wrong for the glow plug i found out thats what was wrong with mine i replaces the head 3 times to get a good one but i bought mine off ebay for a $1 brand new lol fixxed that prolbumm then front bearing issues. pos
05-25-2007, 04:13 AM
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RE: Check this out.!!!!
I'm still going to call traxxas back and let them know about it. See if they will replace the head and bearings while they are at it.
05-25-2007, 05:06 AM
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RE: Check this out.!!!!
I don't think I cross threaded it, like I said it's been like that since the break-in. I never really thought much of, I just thought it was oil that got dripped on there at some point and started boiling. I'll see if I can get a video of it today and have it posted up by later tonight. so you all can see exactly what the bubbling looks like.. And to have 2 engines doing it? seems awfully strange. I never even pulled the plug out on the new engine I just made sure it was tight before I did break in. I'll try to get some video of it on the 3.3 today, as the 2.5r is still in the shipping box in my toolbox.
05-25-2007, 05:11 AM
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RE: Check this out.!!!!
it is strange on a brand new engine, i'd send it back to traxxas and ask them respectfully for a replacement cooling head, if anything is leaking out of the glow plug hole your loosing compression, and most likely running the engine leaner then you should because the fuels leaking out of the glow plug hole instead of out the exhaust where it's meant to go.
05-25-2007, 05:14 AM
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RE: Check this out.!!!!
Yup, that's exactly what I'm going to do. Either that or they can just refund me my $189 for the engine and call it even. Either way don't matter to me.
05-25-2007, 05:22 AM
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RE: Check this out.!!!!
if you can get the refund, take it, and get an O.S .18 TM (or something bigger if thats what you want) for $140 off tower, or you can get a picco .26 max for $170 or something.
05-25-2007, 05:54 AM
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RE: Check this out.!!!!
Right now you can get the OS for 119. on Tower Hobbies. I got a email if you spend 149. They will give you 30. off. I think the OS is a better engine anyway. I have one and do not have all the problems everyone with trx engines have.
05-25-2007, 11:08 AM
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RE: Check this out.!!!!
I called traxxas, and explained to them the problem with both engines. The tech support guy said it's nothing to worry about all his trucks do the same thing. And he said since it was pushing air out on the upstroke it shouldn't cause an airleak. He said when they have an engine in for repair, they visually check the bearings and all the parts for damage, If they don't replace the bearings then he said they look like they are in good condition with no breakdown on them. He said he's noticed it on his trucks also. He said that there's a seal on top of the glow plug and wne the engine gets heated up it pushes small amounts of fuel up through the seal and that's what's bubbling. He said if the bubbline wasn't significant then not to worry about it. So....that's where I'm at.
05-25-2007, 12:07 PM
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RE: Check this out.!!!!
you should see if he will give you some kind of confirmation number on your complaint and what he said about it,,,that way if something goes wrong you can go back to that...just a thought.
05-25-2007, 12:13 PM
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RE: Check this out.!!!!
If it pushes air out (bubbles) it pulls air in, that's only common sense.
I have 2 2.5's and a pro.15 and none of them do that. And neither do any of the other 8 nitro engines I have.
And I can "visually" check any bearing I want and (unless there's something glaringly obvious) I won't find an air leak. Think about it how many times can you "visually" check a tire for an air leak - not very darn often. The only way to reliably check for an air leak is a pressure test of some kind. Just like tires, they inflate them and dunk them (or spray with a soap solution) to find a leak.
I think tech support is blowing smoke on this one.
I really wish they'd be less biased in their responses, it really kills their creditabilty when the tell people stuff like that...
I have 2 2.5's and a pro.15 and none of them do that. And neither do any of the other 8 nitro engines I have.
And I can "visually" check any bearing I want and (unless there's something glaringly obvious) I won't find an air leak. Think about it how many times can you "visually" check a tire for an air leak - not very darn often. The only way to reliably check for an air leak is a pressure test of some kind. Just like tires, they inflate them and dunk them (or spray with a soap solution) to find a leak.
I think tech support is blowing smoke on this one.
I really wish they'd be less biased in their responses, it really kills their creditabilty when the tell people stuff like that...
05-25-2007, 12:36 PM
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RE: Check this out.!!!!
Well all I can do is go ahead and call them back for peace of mind... but I have a feeling they will tell me the same thing.
05-25-2007, 12:52 PM
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RE: Check this out.!!!!
That is BS. I have owned 7 different traxxas engines and 4 O.S.'s, and not a single one of them has ever leaked oil at the plug. It sounds like that tech is full of crap. I'd immediately ask to speak with another tech, or his manager. He is clearly an uneducated idiot.
Now that I'm done with my rant...
Are you sure oil is bubbling up out of the head? You said you used to think it was oil you had dripped in there just boiling off. That is the most likely scenario. Remove the head, remove the plug, clean and dry both very thuroughly and reassemble. If you still see bubbling after ensuring that no oil was in there before starting, then you definately have a leak and it need to be fixed. Do that, and if you still have a leak, call traxxas and explain, if you get another foolish tech who tries to tell you that is normal, get his name and then ask to speak with a different tech or else his manager. That is complete and utter garbage, suggesting that leaking oil at the plug is normal. That douchebag needs a swift kick in the tail.
Now that I'm done with my rant...
Are you sure oil is bubbling up out of the head? You said you used to think it was oil you had dripped in there just boiling off. That is the most likely scenario. Remove the head, remove the plug, clean and dry both very thuroughly and reassemble. If you still see bubbling after ensuring that no oil was in there before starting, then you definately have a leak and it need to be fixed. Do that, and if you still have a leak, call traxxas and explain, if you get another foolish tech who tries to tell you that is normal, get his name and then ask to speak with a different tech or else his manager. That is complete and utter garbage, suggesting that leaking oil at the plug is normal. That douchebag needs a swift kick in the tail.
05-25-2007, 02:53 PM
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RE: Check this out.!!!!
that's his exact words. It's normal and there's nothing to worry about. I explained to him it even happend to my new 3.3 and I didn't even remove the plug before the break in. Just tightened it. So I know it's nothing I've dripped in there.
05-25-2007, 03:32 PM
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RE: Check this out.!!!!
Ok where's Traxxas__Tech. I just called Traxxas back. and mind you I was very nice and pleasant, never raised my voice, listened to all their suggestions, and disscussed the problem. Frist time this morning I talked to Llyod and he's the one that told me it's normal. Now i just called back and talked to Casey, He said it could be your running way to lean, your gasket is bad, or the plugs not tight. Here was my response to that. My engine temp on the 3.3 never reached over 220 degrees yesterday after 1 1/2hr run time. so it's not overheating. (since the TRX normal operating temp is 250-270 degrees.) I use an onboard temp gauge that give me MAX temp not just the temp you get with an inferad temp gauge. Second I've put 3 plugs in the 3.3 already so as far as one washer being bad. Highly doubtful that 3 consecutive would do the same thing. and on the 2.5r I went through 15 plugs within a gallon of fuel with it. and Highly doubtful that 2 engines would have the same problem out of the box. and I know the plug is tight because I can't tighten it any more. He said well there's no magical answer to this problem. I really don't know whats going on. There's no possible way for any fluid or liquid to come up through the plug. I explained to him that Llyod had said that it was normal on these trucks. He's said he's never heard of it before. I asked him to fill out a ticket number for my new 3.3 about this problem, He says well there is no warranty on the engine. I said I know that but I wanted a ticket number anyway so that It is documneted that I've had problems with this engine out of the box. Since I paid retail $189 for the engine. He said He'd make a note of it on my file. Wow do I ever feel SHAFTED!!!! The least he could of done was ship me a replacement engine, or had me send mine in to be checked over. OR FIGURE OUT WHY 2 OF THEIR ENGINES ARE LEAKING AND BUBBLING AT THE PLUG!!!!! I used to think traxxas support was decent.. but the past few days it seems like they dont' want to help anyone. I mean these are tech guys they need to forward the problem to the R&D department so it can be looked into. I even told him that if it is bubbling air out then it is more than likely sucking air back in. I'm beginning to become very dissapointed with traxxas support. He said the same thing that LLoyd said about the bearing too. Oh we visually check them if it looks good we just slap them back in there. and send it back to you. BUT he did make it a point to tell me that they fixed my 2.5r as a COURTESY favor. Wow you really did me a favor, replacing a piston and sleeve when you could of sent a new engine for $20 more. and I still spent another $189 on a NEW 3.3 same day I sent the 2.5r in. SO how did they do me a favor?? I got 2 headaches now. one for the leaky plugs and a 2.5r that always overheated and probably still does. Sheesh....
05-25-2007, 03:39 PM
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RE: Check this out.!!!!
ORIGINAL: Revo_Rash
Ok where's Traxxas__Tech. I just called Traxxas back. and mind you I was very nice and pleasant, never raised my voice, listened to all their suggestions, and disscussed the problem. Frist time this morning I talked to Llyod and he's the one that told me it's normal. Now i just called back and talked to Casey, He said it could be your running way to lean, your gasket is bad, or the plugs not tight. Here was my response to that. My engine temp on the 3.3 never reached over 220 degrees yesterday after 1 1/2hr run time. so it's not overheating. (since the TRX normal operating temp is 250-270 degrees.) I use an onboard temp gauge that give me MAX temp not just the temp you get with an inferad temp gauge. Second I've put 3 plugs in the 3.3 already so as far as one washer being bad. Highly doubtful that 3 consecutive would do the same thing. and on the 2.5r I went through 15 plugs within a gallon of fuel with it. and Highly doubtful that 2 engines would have the same problem out of the box. and I know the plug is tight because I can't tighten it any more. He said well there's no magical answer to this problem. I really don't know whats going on. There's no possible way for any fluid or liquid to come up through the plug. I explained to him that Llyod had said that it was normal on these trucks. He's said he's never heard of it before. I asked him to fill out a ticket number for my new 3.3 about this problem, He says well there is no warranty on the engine. I said I know that but I wanted a ticket number anyway so that It is documneted that I've had problems with this engine out of the box. Since I paid retail $189 for the engine. He said He'd make a note of it on my file. Wow do I ever feel SHAFTED!!!! The least he could of done was ship me a replacement engine, or had me send mine in to be checked over. OR FIGURE OUT WHY 2 OF THEIR ENGINES ARE LEAKING AND BUBBLING AT THE PLUG!!!!! I used to think traxxas support was decent.. but the past few days it seems like they dont' want to help anyone. I mean these are tech guys they need to forward the problem to the R&D department so it can be looked into. I even told him that if it is bubbling air out then it is more than likely sucking air back in. I'm beginning to become very dissapointed with traxxas support. He said the same thing that LLoyd said about the bearing too. Oh we visually check them if it looks good we just slap them back in there. and send it back to you. BUT he did make it a point to tell me that they fixed my 2.5r as a COURTESY favor. Wow you really did me a favor, replacing a piston and sleeve when you could of sent a new engine for $20 more. and I still spent another $189 on a NEW 3.3 same day I sent the 2.5r in. SO how did they do me a favor?? I got 2 headaches now. one for the leaky plugs and a 2.5r that always overheated and probably still does. Sheesh....
Ok where's Traxxas__Tech. I just called Traxxas back. and mind you I was very nice and pleasant, never raised my voice, listened to all their suggestions, and disscussed the problem. Frist time this morning I talked to Llyod and he's the one that told me it's normal. Now i just called back and talked to Casey, He said it could be your running way to lean, your gasket is bad, or the plugs not tight. Here was my response to that. My engine temp on the 3.3 never reached over 220 degrees yesterday after 1 1/2hr run time. so it's not overheating. (since the TRX normal operating temp is 250-270 degrees.) I use an onboard temp gauge that give me MAX temp not just the temp you get with an inferad temp gauge. Second I've put 3 plugs in the 3.3 already so as far as one washer being bad. Highly doubtful that 3 consecutive would do the same thing. and on the 2.5r I went through 15 plugs within a gallon of fuel with it. and Highly doubtful that 2 engines would have the same problem out of the box. and I know the plug is tight because I can't tighten it any more. He said well there's no magical answer to this problem. I really don't know whats going on. There's no possible way for any fluid or liquid to come up through the plug. I explained to him that Llyod had said that it was normal on these trucks. He's said he's never heard of it before. I asked him to fill out a ticket number for my new 3.3 about this problem, He says well there is no warranty on the engine. I said I know that but I wanted a ticket number anyway so that It is documneted that I've had problems with this engine out of the box. Since I paid retail $189 for the engine. He said He'd make a note of it on my file. Wow do I ever feel SHAFTED!!!! The least he could of done was ship me a replacement engine, or had me send mine in to be checked over. OR FIGURE OUT WHY 2 OF THEIR ENGINES ARE LEAKING AND BUBBLING AT THE PLUG!!!!! I used to think traxxas support was decent.. but the past few days it seems like they dont' want to help anyone. I mean these are tech guys they need to forward the problem to the R&D department so it can be looked into. I even told him that if it is bubbling air out then it is more than likely sucking air back in. I'm beginning to become very dissapointed with traxxas support. He said the same thing that LLoyd said about the bearing too. Oh we visually check them if it looks good we just slap them back in there. and send it back to you. BUT he did make it a point to tell me that they fixed my 2.5r as a COURTESY favor. Wow you really did me a favor, replacing a piston and sleeve when you could of sent a new engine for $20 more. and I still spent another $189 on a NEW 3.3 same day I sent the 2.5r in. SO how did they do me a favor?? I got 2 headaches now. one for the leaky plugs and a 2.5r that always overheated and probably still does. Sheesh....
05-25-2007, 05:27 PM
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RE: Check this out.!!!!
Traxass support is a joke. You are getting the same response that I got with my troubles. It doesn’t matter who you talk to they all have a different answer as to what the problem is. They will all agree that it's not traxass fault. Just cut your losses and don’t waste anymore money with them.
I feel your pain.
I feel your pain.
05-25-2007, 05:58 PM
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RE: Check this out.!!!!
Thats about the only option I see left. BTW I blew out another one of their tires today. The Revo RESPONSE tires. That's 2 in a month. Guess I'll start looking at a BB for my revo now.
