Can Timing Belt Replacment Fry My Engine?
#11
RE: Can Timing Belt Replacment Fry My Engine?
ORIGINAL: PAhonda
The oil pickup could have been pinched off or broken off and cause the engine to be starved of oil too.
The oil pickup could have been pinched off or broken off and cause the engine to be starved of oil too.
i have seen that before,, but the oil lite should come on, at least on the ones that i have seen it was on..
#12
RE: Can Timing Belt Replacment Fry My Engine?
On earlier 4-cyl. the oil pump is driven by the rear balance shaft through a gear connection. If the balancer belt (smaller of the two belts) were misintalled, and the rear balance shaft was not turning, you would have no oil pump pressure. However, the engine oil light should have come on immediately.
good luck
good luck
#13
RE: Can Timing Belt Replacment Fry My Engine?
I agree with dh that you should not have gone ahead and replaced your engine. You should have given that shop time to assess the problem and fix it on their own. Their liability insurance will likely handle this, and it is not going to look good that you replaced the engine before you even told them about the problem.
Good luck
Good luck
#15
RE: Can Timing Belt Replacment Fry My Engine?
Here is the oil pump assemblyfor a 00 Accord 4 cyl.:
Here's one from a 92 that has had the crank seal removed (notice the provisions in the oil pump gear with which the crank must mate) :
Closeup of the area that is normally obscured by the crank seal that better shows those provisions:
End of crank showing pulley area with keyway (red arrow), crank seal surface (black arrow), and oilpump surface with flat area to mate withoil pump gear (yellow):
Back of the oil pump assembly showing plate over oil pump gear:
Exploded view of 92oil pump assembly showing oil gear (12), gear ring (13), and cover plate (9):
Photo of oil pump gears for Acura that are probably very similar to that of Accord:
Direction of oil flow through oil pump assembly (I think):
By it's almost bullet-proof design, if the pan had adequate oil in it, and the pickup flowed freely, I very much doubt if replacing the belts, sealsand water pump would cause the oil distribution system to fail. That being said, however, I find it almost impossible to believe that the timing job and bearing failure are unrelated. That's far too much coincidence for me to swallow in one gulp.
Here's one from a 92 that has had the crank seal removed (notice the provisions in the oil pump gear with which the crank must mate) :
Closeup of the area that is normally obscured by the crank seal that better shows those provisions:
End of crank showing pulley area with keyway (red arrow), crank seal surface (black arrow), and oilpump surface with flat area to mate withoil pump gear (yellow):
Back of the oil pump assembly showing plate over oil pump gear:
Exploded view of 92oil pump assembly showing oil gear (12), gear ring (13), and cover plate (9):
Photo of oil pump gears for Acura that are probably very similar to that of Accord:
Direction of oil flow through oil pump assembly (I think):
By it's almost bullet-proof design, if the pan had adequate oil in it, and the pickup flowed freely, I very much doubt if replacing the belts, sealsand water pump would cause the oil distribution system to fail. That being said, however, I find it almost impossible to believe that the timing job and bearing failure are unrelated. That's far too much coincidence for me to swallow in one gulp.
#16
RE: Can Timing Belt Replacment Fry My Engine?
thanks for the pictures tony - that was a great help. i agree that it is too conincidental. but i am having a hard time figuring out theconnection between what the shop did and how it could have caused the oil pressure to go away?
#17
RE: Can Timing Belt Replacment Fry My Engine?
ORIGINAL: PAhonda
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I would suggest that you check that the oil pan isn't dented in. The engine has to be jacked up (supported) when changing a timing belt, because an motor mount is removed. You should used a piece of wood to prevent denting the oil pan. The oil pickup could have been pinched off or broken off and cause the engine to be starved of oil too.
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I would suggest that you check that the oil pan isn't dented in. The engine has to be jacked up (supported) when changing a timing belt, because an motor mount is removed. You should used a piece of wood to prevent denting the oil pan. The oil pickup could have been pinched off or broken off and cause the engine to be starved of oil too.
Did you drain the oil when you removed the engine? If so, exactly how much was in there?
Was the oilfilter damaged, by any chance?
If you still have access to the engine, you can remove the oil pan andcheck the oil pick-up for debris that may have plugged it.
Good luck.
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brianwindorski
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10-11-2011 12:33 AM