Cam Sprocket Wear - UPDATED with pictures
01-06-2008, 05:39 PM
#17
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Join Date: Jun 2005
Location: Las Cruces, NM
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Trying to answer questions in order. (Good luck, I'm cooking a lasagna and well into my favorite Merlot. Lindeman's BTW for Xlot. My wife is from Perth and we have lived in AU. My older son is working in WA for now.)
The hole on the pivot arm is oblong, and there were no bushings in evidence.
I have put some things back on the car after removing the covers. I wanted to drive down to a local car wash and blast off as much muck as possible.
I will add oil pump o-ring seals to the list.
Am I missing something here. On a 16V there are no additional adjustments if everything remains stock. The crank is set to TDC the cams to index and the distributor rotor to cyl #1.
Does Porken have an additional tool for stock setups?
The hole on the pivot arm is oblong, and there were no bushings in evidence.
I have put some things back on the car after removing the covers. I wanted to drive down to a local car wash and blast off as much muck as possible.
I will add oil pump o-ring seals to the list.
Am I missing something here. On a 16V there are no additional adjustments if everything remains stock. The crank is set to TDC the cams to index and the distributor rotor to cyl #1.
Does Porken have an additional tool for stock setups?
01-06-2008, 05:54 PM
#18
Nordschleife Master
It might be different for 16v cars as I have no experience of them, but on 32v cars the key on the cam sprockets allows some lattitude (approx 10 degrees both ways) relative to the cam shafts. The key-way on the sprockets is wider than the key to allow this movement for adjusting the timing of each bank.
I used one of Ken's tools to make sure the cam timing was set correctly when I reassembled.
01-06-2008, 06:15 PM
#19
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That is a difference between the 16V and the 32V cars. The 16V clan does not have any adjustment available (stock). The only possible adjustment is due to slop in the keys themselves.
01-06-2008, 06:39 PM
#20
Rennlist Member
Phil,
Porken makes (Made?)a kit that allows 16V cars to use 32V cam wheels and makes the cam timing adjustable a few degrees either side of stock. If nothing else, this allows a 16V engine to have both cams timed EXACTLY , rather than the normal LHS different - usually advanced 1/2 a tooth. Ken has found that advancing the cams a couple of degrees improves the bottom end a lot.
jp 83 Euro S AT 51k
Porken makes (Made?)a kit that allows 16V cars to use 32V cam wheels and makes the cam timing adjustable a few degrees either side of stock. If nothing else, this allows a 16V engine to have both cams timed EXACTLY , rather than the normal LHS different - usually advanced 1/2 a tooth. Ken has found that advancing the cams a couple of degrees improves the bottom end a lot.
jp 83 Euro S AT 51k
01-06-2008, 06:59 PM
#22
Nordschleife Master
