![]() ![]() I'm used to having timing marks on the belt itself, which practically eliminates any chance for error, but the belts on these engines are absent of any markings. This is where I left it, and I'm fairly confident it is right- while I can't be 100% certain there's a loss in power (I haven't driven the van in 3 months) it does feel noticeably more sluggish, whereas I would expect an increase in power due to the valve job & HG swap. #Timing belt symptoms installWhat I later discovered, is that if you install the belt with the cams one full tooth retarded (in other words, you're sort of installing the belt wrong), once the tensioner is let go (pin pulled), all the marks line up after turning the engine a couple times. When I had the belt on as close as I could get it, it would go a whole tooth off (advanced, IIRC) when I pulled the pin on the tensioner and turned the engine by hand. If I tried moving the cam one tooth to correct it, it would go one half tooth off in the other direction. ![]() The problem was, it seemed that the cam alignment mark was always 1/2 tooth off. I probably took the belt on & off about thirty times making sure it was 100% accurate. I did have a heck of a time getting the cams & crank aligned right when I put the new timing belt on. ![]() Compression is outstanding (200-210 PSI on all cylinders), the whole upper end is practically new, thus there's not many things to point a finger at. I had the engine out of the van, and replaced every seal, belt, plugs, etc pretty much all maintenance items have been replaced.įor some reason the van doesn't feel like it has all the power it used to. After removing the heads, it was clear that the front HG had failed.Ī $410 valve job and resurfacing of both heads, and lots of my time later, I have the van back up and running. I narrowed down the problem to a bad head gasket (likely started out as something small or insignificant, but repeated overheats probably lead to a HG failure and subsequent warping of the cyl. None of their guesses fixed the problem, and the owner ultimately sunk about $2,000 chasing this down. PO took the vehicle to three different shops, each of which just threw parts at the problem. Purchased this in January of this year days later, I found recent service records where the PO had problems with the engine overheating, and temp gauge going into the red. Vehicle in question is a 2004 Honda Odyssey EX with 138k miles. ![]()
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