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1998 Chevrolet Suburban Heads

Tiny
JHNY68
  • MEMBER
  • 1998 CHEVROLET SUBURBAN
  • 350,000 MILES
I just did a head gasket job on this truck, and had to replace one head, all torque specs are on the money and the valves have been adjusted, the engine turns but won't start, only backfires, timing is set on TDC1 what am I missing?
Saturday, June 15th, 2013 AT 7:35 PM

4 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Make sure the firing order is correct and not 180 degrees out

Roy
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Saturday, June 15th, 2013 AT 7:45 PM
Tiny
JHNY68
  • MEMBER
  • 3 POSTS
Got the firing order, if cylinder 1 is on tdc and the distributer is set to # 1, how would I check to make sure its not out 180?
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Sunday, June 16th, 2013 AT 5:05 AM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
The piston can be at top dead center either on the compression stroke or on valve overlap. Remove the plug, hand crank the motor till you feel a little pressure when the piston comes up to be sure it is on the compression stroke.

Roy
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Sunday, June 16th, 2013 AT 7:08 AM
Tiny
JHNY68
  • MEMBER
  • 3 POSTS
Thanks, that did it, running great now
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Tuesday, June 18th, 2013 AT 4:29 AM

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