Re: 310 German

Posted by Bergen on January 09, 2001 at 13:16:36 from (208.132.18.52):

In Reply to: 310 German posted by Mike Shultz on January 09, 2001 at 08:52:13:

As far as the pitted sleeves go, we just overhauled the 414 in our 1086. We had a mechanic down to look at it when had had it all tore down, and he (a very, very competent mechanic) told us that sleeves become pitted by a process called electrolysis. Basically, that is when little air bubbles in antifreeze (old stuff is worse) contact the sleeve and explode - gradually eating away at the sleeve and o-rings. He has seen sleeves eaten completely through. He also said that the 414 lasted as long as it did (almost 7700 hrs.)only because we had changed the antifreeze every two years. Maybe something in the engine or antifreeze acted as a catalyst to eat the sleeves away extremely fast.
Are you sure all the timing is right? Those timing gears can turn easily when putting them back on. Sounds to me like that could be the culprit, especially if the cam and injection pump are both out of time. the cam out of time would explain power loss (losing compression) and fuel in the exhaust, because bad compression and wrong injection timing would cause unefficient burn of the fuel. Just some ideas to throw around.

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