My Atomic 4 has 640 on the rebuild (Pearson 35). However I have no idea of the total number of hours on the engine. But the engine runs well (slight tick sound that goes away above 1200 rpms) and since installing the PCV valve, removing the crank case vapors from the cabin, I'm really enjoying the sailboat.
Engine-Hours Survey
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Total engine hours to expect?
Greetings folks,
along the lines of this engine hours survey, how many hours (total time between overhaul - TTBO) can I expect out of A4 with periodic maintenance performed. For example, oil changes in the range of 40 - 70 hours, regular tune ups, and using MMO as a fuel additive.
Note the engine has the indigo electronic ignition, PCV addition, and I'm installing the external oil filter within the next two weeks.
I've been told by others that diesels can last up to 8,000 hours (if well maintained), while gasoline engines, if well maintained, are in the 1,500 - 3,000 hour range. Is this true?
I realize the standard caveat applies - your mileage may vary (YMMV), so I asking for what may be reasonably expected.
Thanks,
Jeff
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Jeff,
Originally posted by jeffgerritsen View PostI've been told by others that diesels can last up to 8,000 hours (if well maintained), while gasoline engines, if well maintained, are in the 1,500 - 3,000 hour range. Is this true?
Mark
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Ticking
After the overhaul I did on my late model A4 I could hear a ticking sound after installing the engine. I would bet it was a loose tappet, Thought I made a bad valve adjustment on the bench . So off came the carb and manifold and I did a recheck,everything was nuts on . New Valve springs , can't be that so that leaves the accessory drive gear. Don't think it's a big deal,Not gonna worry about ,
Tony
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Tony-
Read this thread regarding "normal" ticking noises.
(http://www.moyermarine.com/forums/sh...ht=valve+noise)
It might put your mind at ease...-Jerry
'Lone Ranger'
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1978 RANGER 30
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Originally posted by Rick_Powers View PostQ: How long should this engine run before needing a rebuild?
Based on good maintenance and care, it's very likely that Don's Grandkids will be doing the next rebuild.
Hopefully for your Grandkids!-Jerry
'Lone Ranger'
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1978 RANGER 30
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It was a slow leak that progressively got worse to the point where oil would
drip out overnight and I'd have to add a little bit every morning I was
motoring north up the ICW.
When the motor was opened up Don told me they found some interesting
worm-like erosion patterns, I think it was on the crankshaft, but he'll
have to clarify the exact location.
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