Question about 1983 GMC Jimmy

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1983 gmc jimmy 350 engine. no sticker in engine compartment. what is timing deg at what rpm ???

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12 degrees was common for those engines at 650 rpms, but make sure that the engine is warm and disconnect the vaccum advance, which will probably require plugging the vaccum port at the carb.

Posted on Mar 30, 2011


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1 Answer

Factory setup 69 Chevy C10 350

Idle speed 900 RPM
Fast Idle 1500 RPM
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Points Gap. I switched to Elect Ing so got to go get the book ok 0.019
Dwell 28 to 32 Deg

Let me know if you need anything else Mike

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Where's the a/c accumulator on a1996 Jimmy

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What are the timing specifications for a 1983 chevrolet 350

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Timing Dpecs for Toyota Supra 87 6 cylinder

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To set the timing, you will need to connect a jumper wire between terminals E1 and TE1 on the diagnostic terminal. This diagnostic terminal is located just aft of the engine compartment fuse box. It is a black plastic box marked "diagnostic" on the cover, which flips open to reveal the terminals inside. There is a diagram on the inside of the cover which explains the terminal positions. On the Turbo model, you need to remove the forward section of the engine cover to gain access to the number one spark plug wire.

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