Sporatic timing and still advances even with tss wire unpluged...
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Joined: Mar 2006
Posts: 140
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From: Portland, Or
Car: 90 Chev Suburban 4x4, 5.3L, th400
Engine: 2002 5.3 Vortec swapped in.
Transmission: Stock th400
Axle/Gears: 10blt front/ 14bltSF rear 3.73 gears.
Sporatic timing and still advances even with tss wire unpluged...
So I was just goofing around with my timing trying to iron out an idle issue i have. With the TSS(right?) wire unpluged, and the timing set at 4*It still bounces around slightly. Also with the wire un pluged, if i rev it up a little the timing goes up to around 10-12* then comes back down like a centrifigul(sp?) advance. Is that normal?
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From: Moorestown, NJ
Car: 88 Camaro SC
Engine: SFI'd 350
Transmission: TKO 500
Axle/Gears: 9-bolt w/ 3.23's
Re: Sporatic timing and still advances even with tss wire unpluged...
Theres some base timing advance within the dist. itself due to how the pickup works, so there will be a little advance. It should be steady, or nearly steady. If not, the dist. gear may be worn or the dist. may need to be shimmed back to spec.
Thread Starter
Member
Joined: Mar 2006
Posts: 140
Likes: 0
From: Portland, Or
Car: 90 Chev Suburban 4x4, 5.3L, th400
Engine: 2002 5.3 Vortec swapped in.
Transmission: Stock th400
Axle/Gears: 10blt front/ 14bltSF rear 3.73 gears.
Re: Sporatic timing and still advances even with tss wire unpluged...
Well it does have a new cam and dist in it, but that dosnt mean that the dist is shimmed preoperly.
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