I have replaced the head gasket on my 1990 350SDL W/ 603 motor. All went well until I started it up. It runs rough with a lot of white smoke from exhaust. I thought a possible injector problem and cracked loose the lines to each injector and number one cylinder made no difference. I switched the number four and number one injector to see if the problem moved and it did not. I am beginning to think that I got the I.P out of time when R&R the head although I tried to keep tension on the chain. I have searched the forum at length and have read alot about the I.P and how to set the timing on 240 & 300 turbos but not alot on the 603 motors. Is the timing on this motor at 24 BTDC also as a starting point? I really dont want to remove the pump maybe someone has a idea to share. I did try to adjust the I.P as much as it will allow both ways but seemed to make it worse moving towards the motor and no difference away from the motor. Thanks for any help you all can provide.

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Who needs spark plugs.

16 degrees + or - 1 degree up to 89, after that 14 degrees + or - .5 degrees. Remove the 17mm head plug in the side of the pump, set the mill at 17 and look into the hole with a mirror, you should see a raised bar section running front to rear in the hole. (the governor is there) If you dont slowly rotate the mill clockwise until you find it, sounds to me like its in the 20's.



Joe

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Project Smoker, '87 603 powered wagon
Hauler, 96 CTD can you say torque?
Toy 73 Cougar xr7 convertible
Acme Automotive Inc.
Raleigh NC
919-881-0364