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   PeachParts Mercedes-Benz Forum > Mercedes-Benz Tech Information and Support > Diesel Discussion

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 10-22-2008, 12:50 PM
Registered User
 
Join Date: Oct 2008
Posts: 1
IP timing issues - replace timing chain ??

1984 Mercedes 300sd Turbo Diesel 350K miles +

I think I have some IP timing issues and I have read one of the more common reason for this in old Mercs is the slight stretching of the timing chain.

My question is this. If I am thinking of replacing the timing chain anyways (as I have recently bought the car with NO history of maintenance and have spent quite some money so far doing other repairs and maintenance) will this fix the IP timing issue, or will I still need to do this after the chain has been replaced.

I think I can fairly easily do the timing chain replacement but from what Ive read adjusting the timing is another battle in itself.

Thank you

Reply With Quote
  #2  
Old 10-22-2008, 03:12 PM
Registered User
 
Join Date: Apr 2008
Posts: 55
Timing that is not all that hard with the drip method. I am not prepared to describe it here, but it can be found in the threads and in most repair manuels. Basically you remove a part from the first injector at the IP and attach a curved line in place of the injector line. I made one from an old injector line.
You should check the stretch on that chain first though. If it is out of range it should be replaced. Now that is not a simple job.
Reply With Quote
  #3  
Old 10-22-2008, 03:47 PM
Registered User
 
Join Date: Apr 2006
Location: Canada, Ontario, Hamilton
Posts: 288
why do you think its a IP time problem??

i would replace the chain and the tensioner rail, tens. spring, gasket needed just to be safe

align the marks on the cam and check the reading on the balancer before anything
__________________
1985 300D - 599,xxxk - blue interior #265 Monark Nozzle, AL129X, 15" Ronals, Gen II Big Brakes hunting
1985 300D - 491,xxxk - in prog-{A-A IC, 3" exhaust, psi\pyro, 28*BTDC, Hella Euros, IP Limiter removal
1985 300TD - 783,xxxk - parts car,used new engine with ALDA cap inplace
1987 Kenworth T-600 8LL 425 CAT Mech. - 6,000,000+k - DEI exhaust wrap, punched through resonators, 1 recent rebuild,
Reply With Quote
  #4  
Old 10-22-2008, 03:59 PM
Diesel911's Avatar
Registered User
 
Join Date: Sep 2007
Location: Long Beach,CA
Posts: 50,968
You did not say how you know your timing chain is stretched too much. Alos, if you change the Timing Chain (you need to rent or buy the over $200 rivet crimping tool) you shouel do the Fuel Injection Pump Timing any way.
I would highly recommend getting the Factory Manual CD for either job.
The origional factory CD manual is $20 and about $6 added to ship it
The 300D manual is QL-6516-5610-02 (it will be called a Service Manual on the site)


Here is a split pic that will give you a way to see how much your timing chain is stretched
The left side of the pic is the Camshaft Timing Gear mark lined up with the timing mark on the Camshaft Bearing Tower. The left side of the picture is shoeing the degree marks on my Crankshaft Damper (showing that I am at least 2 degrees Late/Retarded). Indicating that I my Camshaft was timed at Top Dead Center when it left the facory it now is 2 degrees of due to Timing Chain Stretch and wear on the timng gears.

__________________
84 300D, 82 Volvo 244Gl Diesel

Last edited by Diesel911; 10-24-2008 at 07:10 PM.
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On




All times are GMT -4. The time now is 04:31 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2018 Pelican Parts, LLC - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page