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Join Date: Apr 2008
Location: Southern Maryland
Posts: 140
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Junk yard find update and Lifter questions

Ok, got new cam chain and pads in. cam has good teeth solenoid works. Borescope shows nothing to be conserned about with the cylinders. Goin to start cleaning the top of the head and lifters with head still on car.

now this has sat for 6 years. Head was rebuilt, new lifters valves seals etc. The top of the head is filthy. it was left open for quite a while..The hood was closed but the cover was off. Lifters have surface rust. I poured a quart of oil on top of everything to let it soak up.
Questions.
1. do the lifters pull right out from the top?
2. if so what is the best way to clean them? pull them and let em soak in a solution?
3. is there a test to see if they are still good?
4. I also have a 928. we run into issues with the cam timing gear. does this gear have history of wear?

I am unsure if my gear is new. it is rusty tho. so I am gonna clean it up and put a straight edge across the teeth.. Does anyone know what the dimensions of a new gears teeth are?

thnx

Old 05-23-2013, 07:01 AM
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Proprietoristicly Refined
 
John_AZ's Avatar
 
Join Date: Jul 2001
Location: ~Carefree Highway~
Posts: 5,833
I see you have good advice for the 968:
Cam shaft removal 968

Here is a little information about the lifters from Bennington Motorsports:
Bennington Motorsports

The only change I make is that to test the lifter/cam follower, press in the button and compare to others. Hard feel is best--replace "soft", easy to press in lifters

If you need spares, get good used INA lifters---new INA lifters have a failure rate.

Repeating Bennington---lifters go in the same bore they came out of.

Timing Gear? Not enough experience. You already have the main failure part--pads.

GL
J_AZ
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1988 924S, 85,750K ..+ 1987 924S, 154K DD (+15K est. bad odo)
Old 05-23-2013, 07:14 AM
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thnks, that was very helpfull with the lifters. How are they removed? from the top, or do i have to take the head off?
Old 05-23-2013, 07:38 AM
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Redline Racer
 
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Join Date: Jan 2007
Posts: 2,444
For the 16v, the cams have to come off and they come out the top. The 8v lifters come out the bottom of the cam housing once it is removed from the head.

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1987 silver 924S made it to 225k mi! Sent to the big garage in the sky
Old 05-23-2013, 11:17 AM
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