I couldn’t find a full write up on replacing a harmonic balancer on an 80 series. Anything out there? I was trying to figure out an engine noise and then noticed play in it so looking at tackling that.
Harmonic balancer procedure
- Thread starter tjrober2
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Pretty straightforward just need to get the big bolt loose after that it comes right off.
For me I removed the radiator to make room to work.
Edited looks like I just pull cardboard in front of the radiator to protected it
post #4
For me I removed the radiator to make room to work.
Edited looks like I just pull cardboard in front of the radiator to protected it
post #4
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Search for any of the "oil pump cover leak" threads as the HB has to come off for that. Also search "Crank pulley tool" and there are a few discussions on the various methods (Starter bump versus big impact wrench, ---)
@tjrober2 : Can you post up a video (or link) showing the loose HB? Do you mean it is visibly wobbling when running?
@tjrober2 : Can you post up a video (or link) showing the loose HB? Do you mean it is visibly wobbling when running?
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Fj80oregon
GOLD Star
Is this a real thing? I have removed over 40 balancers and never had the woodruff keys move. I have removed the keys before and needed a brass punch to get them out. I feel like this is one of those things people warn about that could be an issue but is not.
Over 40 against 1! You experience speaks by itself. I agree with you that maybe it is a non-existing horror story! But since it appears to have a play in it, it doesn’t cost anything to pay attention.
Cheers
play is not good.
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I’m right there with you, never found a loose key in the many I have removed.
There is enough room to get a breaker bar on the bolt without pulling the radiator, though the radiator not being in the way is a big help. Balancer pulls right off once the bolt is out. If your oil pump housing has not been resealed, do it at the same time - most common oil leak on the 1fz and most common reason to pull the balancer.
- Thread starter
- #10
Sorry, I've been MIA - glad to hear about the hopefully non-issue of the key. It looked like there was plenty of room for a very large breaker or a very large man to hang off a slightly shorter breaker. I tried to get a video but my camera is broken on my phone. It essentially looked like the large crank pulley would walk in and out. I ended up giving it over to a shop because I have 2 other projects going on right now and don't have time for another vehicle maintenance thing. I will report back if it was indeed the HB.
Make sure they know the torque on it is 300+ ft/lbs
oil pump is driven from it so can lead to issues
oil pump is driven from it so can lead to issues
@tjrober2 : Also make sure, while the HB is off and out of the way, that the shop checks the oil pump cover for leaks. If it is covered in oil/grime and has never been worked on before now is the time to replace the oil pump cover gasket (formed O-ring). Also replace the belts (AC and both Alternator belts, OEM fit correctly)