Noisy lifters not caused by faulty lifters

[79batmobile]

Ok. So the cam has to be in. Well..it's not. I messed with the rockers a little to see if any were really loose while the cam was in but I was looking for side to side play not up and down. What about the hydralic things in the end of the slave lifters? Is there any way to visually tell if one is bad by looking at them with the cam off.

[boodah]

My turn to beat this horse... I've got a 95.5 V6 3.2 that is making a tapping noise (best way to describe it would be like having a playing card clipped to your fork of your bike so it hits the spoke so it makes that noise). It happens while driving at 2200 rpm and lower. Accellerating above that range quiets down. But the damn thing is driving me crazy.

There's no way I'm going to be able to do this work so I'm most likely going to need to drop it of at the damn dealer. Any rough guestimates on how much you think this is going to set me back? (if it is indeed what you guys are experiencing).

Thanks,
-b

[boodah]

Originally Posted by 79batmobile

Ok. So the cam has to be in. Well..it's not. I messed with the rockers a little to see if any were really loose while the cam was in but I was looking for side to side play not up and down. What about the hydralic things in the end of the slave lifters? Is there any way to visually tell if one is bad by looking at them with the cam off.

Bat... check this out.

http://www.nhtsa.dot.gov/TSBScans/sb614929.pdf

This is a service bulletin with diagnosis and procedure. Found it in the forum under a different subject title. This is just what I've been looking for. Hope this helps you out.

-b

[79batmobile]

Originally Posted by boodah

Any rough guestimates on how much you think this is going to set me back?

You ever gone into the dealership and have them tell you to bend over and grab your ankles. Then prepare yourself. They charge $50 a rocker/lifter you have 24 lifters that are in contact with the valves and 12 that are slaves.....Ouch. Next you have 4 rocker shafts at $150 a pop. I went and got an estimate on some of the stuff I wanted done and this was part of that total bill which was around 4k but the lifters and such were the main part of the expense at $2500-3k depending on how many I wanted replaced.

By the way that is just parts...no labor.

Another problem with your car could be the timing belt tensioner. When it gets old and sloppy it can actually hit the belt cover. I'm not sure how the rpms work with that. That is a pretty cheap fix and somwhat common. I think you are supposed to replace the tensioner every 60,000 miles or something like that. I'm not positive so don't quote me.

Anyway
Good Luck

[79batmobile]

Thanks Boodah. That's awesome. That's gonna really help. Much appreciated.

[towtruck]

"I talked to a rebuilder ..... He was right, the rods had a set of nasty grooves cut into both them. The new ones are designed different to allow more oil to the rocker race."

What do you mean by "new ones"?? Are these OEM parts? If Isuzu, are they incorporated into any post-1993 production Rodeo's or are they a post-production 'fix' ??

Thanks!!