Pelican Parts
Parts Catalog Accessories Catalog How To Articles Tech Forums
Call Pelican Parts at 888-280-7799
Shopping Cart Cart | Project List | Order Status | Help



Go Back   Pelican Parts Forums > Porsche Forums > Porsche 924/944/968 Technical Forum


Reply
 
LinkBack Thread Tools Rate Thread
Author
Thread Post New Thread    Reply
Registered User
 
gtroth's Avatar
 
Join Date: Oct 2003
Location: CT
Posts: 624
stuck chain tensioner

ok - started my chain tensioner replacement this morning, and when I push down on the chain to compress the tensioner for removal, it will not budge. Solid as a rock. Any way to un-stick it?

If my only option is to take a cam shaft out to loosen the chain, I might just take it to a shop. So, if I button it back up until I can get it there, is it risky to run in this stuck condition? The pad has very little wear (at 83K miles), and no cracks. I gave it few good tugs, and it didn't seem brittle. Chain looks like new and is taught.

Cheers.

__________________
1995 993C4 guards red
1988 944S alpine white
Old 11-22-2003, 10:55 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #1 (permalink)
Registered User
 
Terry Richards's Avatar
 
Join Date: Jun 2003
Location: Denver Colorado
Posts: 28
I don't know alot about the chain tensioner on the S , but I do know that they are hydrolic, so when the oil presser is developed in the engine it will expand the tensoner. What I would do is crank the engine with the fuel( pump ) DME relay removed. When the oil pressure comes up, stop and check the tensioner. I would not drive the car with a colapesed tensioner. You could distroy the head and a piston. I have a parked S that needs a rebuild and I won't chance starting it until I can start the rebuild. Good luck
__________________
Terry R.
1988 944 NA AT Alpine White
1987 944 NA AT Stone Grey
1987 944 NA 5 Speed Stone Grey
1987 944 S 5 Speed Triple Black
Old 11-23-2003, 05:35 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #2 (permalink)
Registered User
 
gtroth's Avatar
 
Join Date: Oct 2003
Location: CT
Posts: 624
Thanks, Terry.

Actually, it's stuck in the up (taught) position, so I can't get it out without slackening the chain.
__________________
1995 993C4 guards red
1988 944S alpine white
Old 11-23-2003, 07:05 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #3 (permalink)
Registered User
 
Join Date: Jul 2000
Location: Windsor, Ont/ Detroit, MI
Posts: 189
Send a message via Yahoo to asudds
Try letting the system bleed down overnight. Do not take out the cams unless you have to!!! If you do make the position of the adjustments on the cam gear. Release oil pressure by removing the oil fed tube, next compress the spring, tHe spring on the tensioner is quite stiff push down with some weight... you can also slide out the plactic on the tensioner to give a little more room...

Hope this helps... I am not an expert, but I just did one not too long ago.
Old 11-23-2003, 07:19 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #4 (permalink)
Registered User
 
gtroth's Avatar
 
Join Date: Oct 2003
Location: CT
Posts: 624
Very helpful confirming that what I tried was reasonable! I loosened the hollow bolt on the tensioner t the point where I could see the side whole and let it sit overnight. Still stuck.
I've got a good idea what kind of compression the spring needs because I have the new one.
And the ramp won't slide off until the tensioner is fully extended (hits the piece of the casting with the retaining holes).

Many thanks.
__________________
1995 993C4 guards red
1988 944S alpine white
Old 11-23-2003, 07:39 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #5 (permalink)
Registered User
 
gtroth's Avatar
 
Join Date: Oct 2003
Location: CT
Posts: 624
OK- I never did unstick the old tensioner, but I did get it out. I took out the J-tube, removed the tensioner mounting bolts, and slid the tensioner toward rear of car. Not too hard, but I was extemely lucky that the pads did not have deep grooves in them, or this wouldn't have worked. Once out, I could compress the tensioner some, but nowhere near enough to have locked it down with the retainer pins/holes. So something evidently went wrong with this tensioner. Got my new tensioner in and am good to go.

Thanks,

Tom

__________________
1995 993C4 guards red
1988 944S alpine white
Old 11-24-2003, 07:02 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #6 (permalink)
 
Reply

Thread Tools
Rate This Thread
Rate This Thread:

 


All times are GMT -8. The time now is 06:35 PM.


 
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2020 Pelican Parts, LLC - Posts may be archived for display on the Pelican Parts Website -    DMCA Registered Agent Contact Page
 

DTO Garage Plus vBulletin Plugins by Drive Thru Online, Inc.