BUDMAN27

I need someones help to understand what the neck these 8 spots are insde of my Zenoah 230 engine are. 45 years of working on auto engines and never seen this. Must have something to do with the way the air and gas ignite. [8D]

Justaddwata

My Feedback: (3)

I believe it is part of the chrome coating process. It is present on unfired motors

tazmaniaboats

hello bud
I see you own a 230 pum zen ,i currently own one and i,m doing some alterations to it such as add compression etc.a guy in malta told me those spots are there due to the chroming process of the bore.on what is that 230 fitted or will be?mine is in a DAYTONA BEACH [GRAUPNER].

rickburnout666

BUDMAN27
I work with 2/4 stroke motorcycle engines i have never seen these kind of marks either,I think its down to the fact that the heads i work with are not chrome plated ?

BUDMAN27

Thanks everyone. This will be going into my Shockwave 55. It is curantly being custom painted . Will have pics when I,m done guys.

OLD_SLOW and in the WAY

OH NO....... you have the dreaded 8 spot disease []


ite where the fixture to hold the jug during plating contacted the cylinder top... thats all folks

Flabum

You all got it wrong.....it's St Elmos' Fire.

BUDMAN27

Thanks fastrat. i have a Q for you. i was pondering the ideal of taking a drimle tool and do some porting on this head to get some more power out of it ,but I have no ideal what I,m doing. Do you think i could pic your brain on who to go about this porting prosses?

yeeharacing

You're all wrong the that engine is faking chicken pox because it doesn't want to go into a proboat.

rickburnout666

I have seen the 8 spot spreading its now on ebay, and in one of your tuned engines, is it a virus ? [&:]

Flabum

Rick, that one you posted is really contagious....... it even has spots on the piston

warrgy69

My Feedback: (63)

Well everyone was almost correct on the 8 little spots but I have the truth behind the whole thing. That is the marks where the 8 little gerbils keep hitting their helmets. 1 gerbil is equal to 1/4 horsepower. The newer 4 ports are using upgraded gerbils that are making 1/3 horsepower each. The whole trick is just keeping the gerbils well lubricated and inside. They are very small and shy so when you open up the jug, all you can see is the marks left by them. They usually run and hide on the underside of the piston after it is open up. It is a good time to check on their helmets though.

BUDMAN27

This just gets more interesting by the min.