Automotix ®
Need a rebuilt engine?
Rebuilt Engines Store
Our car & truck engines built to IMPROVE performance!
Yard Parts HotlineUsed Parts
Locator
Items in Cart
Checkout
Auto Repair > Engine Repair N' Installation Guide > Jeep > CAMSHAFT THRUST CONTROLContact Us | Track Your Order 
Start Here
Shop online for auto or truck parts and save up to 75%...
 Auto Body Parts  Used Parts  Rims  Engines  Transmissions  Used engines
Shop OnlineChoose Auto Parts Store

Buyer's Quick Guide
Buy Car/Truck Parts Online
Locate Used Auto Parts
Buy Salvage/Repairable
Buy Used Cars / Trucks
Seller's Quick Guide
Sell Used Auto Parts
Sell Surplus Car Parts
Sell Salvage Cars/Trucks
Sell Your Used Car / Truck
Need To Fix Your Car or Truck?
Try Our Repair Service Finder
Post Your Automotive Repair Needs
Ask a Mechanic Your Repair Question Online!
Get the Complete Technical Service Bulletins!
Get the Complete Technical Service Bulletins!Access diagrams and repair information such as wiring diagrams, diagnosis and repair charts, manufacturer service bulletins, and OEM Part numbers of your Jeep vehicle.
Access the Complete guide!
Save Money With Free Car Insurance Quote 
FREE car insurance quote
Enter Zip Code:
Jeep Engine >> CAMSHAFT THRUST CONTROL
Help me findSearch
Camshaft Thrust Control On
Chrysler 2.5, 4.0 & 4.2L (Jeep) Engines

AERA membership has reported a mysterious knocking noise on Chrysler 2.5, 4.0 and 4.2L engines used in various Jeep utility vehicles. The noise is loudest at the lower front area of the engine and has, on occasion, been reported in all of the above listed engines. The noise will disappear if the engine is operated at higher than idle speed.

Disassembly of the engine revealed that the camshaft gear was making contact with the timing cover. Recalling the engine's assembly, several machinists remembered encountering a bolt that had an 1/8 hole in it. Most were unsure where to install the bolt.

As of the 1991 production year, Chrysler has updated the engine to a new method of retaining the camshaft in the block. Prior model year engines were equipped with a camshaft thrust plate. This has been superseded by a special bolt, spring, plunger and front cover (see illustration). The plunger assembly maintains constant pressure on the camshaft, preventing it from moving
forward. Camshaft chucking will result if this thrust control assembly is not reinstalled. The pin rests against a small protruding pad in the front cover that is reported to be 1.000 from the gasket mounting surface.

A replacement Pin Package is available from Chrysler under the Part #83502890.

The AERA Technical Committee

Looking for replacement Jeep engines? Visit our online Rebuilt Engines Store. Need to fix your Jeep engine? Access here the comprehensive online repair guide for your Jeep engine. Click Here to find a used Jeep engine.
 
Help me findSearch
Automotix ®
Member of The Better Business Bureau
To Buy Used Parts/Engines, Call Toll Free 1-800-378-7566Copyright 2006-2009 Automotix LLC. All rights reserved. Privacy policy
CS Address: 5925 Nall Avenue, Mission, KS 66202Technical problem? Email