where is your plate located? have you marked the notch on the balancer
with a soapstone?
Re: 1990 GMC FS Jimmy/ Timing Q & Haynes manual
Group: alt.autos.4x4.chevy-trucks Date: Fri, Apr 9, 2004, 12:48am
(EDT+4) From: email@example.com (KJ)
Thank you pete! I can't believe I missed it! NOW...
How do I see the timing mark along with the timing "plate". I can see
the plate with the little marks, but from any direction something is in
the way. I can only imagine you need to remove the belt?
1990 GMC Jimmy Full Sized SLE
350CUI TBI TH700R4 NP241
I would like to check the timing/advance the timing. Am planning on
attaching a vacuum gauge and adjusting it forward until the
highest/steadiest vacuum is achieved. However I cannot find the 'tan'
wire for the spark advance. Haynes says it is under the "relay
protective cover" or some shit like that on the fire wall. I see two pig
tails on the dizzy, both have two wires. Can't easily follow any of
those wires, and none of them are tan anyways from what I can see. The
Haynes manual I got is for;
Chevrolet & GMC
1988 thru 1998 All Models
1990 and 2000 C/K Classic 2WD and 4WD
All Gasoline engines Includes Suburban (1992 thru 1999) Full-size Blazer
& Jimmy (1992 thru 1994), Tahoe & Yukon (1995 thru 1999) I know the 1992
through 1994 Jimmy/Blazer is NOTHING like mine, but I felt it would fall
under the 1988 through 1998 selection since it is basically a K10 with a
cap. Think I should try to find a better match, or is the best there is