I have a 1994 gmc sierra with 5.7 i put a different cam in it and need to advance the timing 10 degrees but the stock engine timing is 0 degrees i know to unplug the wire under the dash before timing it but when i plug the wire back in dosent the computer tell the motor to go back to 0 degrees how can i advance the timing on my motor and get it to stay at 10 degrees and its an obd1 computer if it helps
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You disable timing advance at the ignition module. Then adjust distributor angle for 0 degrees TDC. This should make for 10 degrees at normal idle when timing advance is reenabled.
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https://www.youtube.com/watch?v=y5NuS-G-cKI
Dec 5, 2013 - Uploaded by Ghetto Wagon
I thought the parts when the engine was running would come out better, but its just too loud. ... How to set ...
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https://www.youtube.com/watch?v=mK5N5mCmyok
Jul 28, 2013 - Uploaded by sprek2
I had to time a distibutor on a 1995 GMC Sierra V8 5.7L and was having trouble finding the wire that you have ...
At this site you can find the firing orders for Chevrolet engines. ... 1987-1989 ... 283, 302, 307, 350, 396, 400 and 454 Engines Firing Order, 307 Engine Firing ...Missing: degrees
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I recently had to replace my water pump 1991 Toyota pickup.Everything was going smooth.What you have to do is make sure both cams are pointed at the marks/notches on the back timing cover.The left one might be pointed a little more to the left of the notch, and the right one may be pointed a little more to the right. the crankshaft has to be pointed at 0 degrees. The only way to be sure this is done proper is to turn the engine twice... use a socket attached to the crankshaft and turn it past the 0 degree mark once, until it comes back again (the second time) both marks on the cams need to match up exactly the way they started... next set a inductive timing light to number one cylinder, and gap the diagnostic terminal under the hood (use a paper clip and connect the e terminal to the terminal (check manual for this, some years you must detach a vacuum tube!!!) after this start the truck, put the timing light on the crankshaft, and measure the timing... timing should be 10 degrees BEFORE top dead center (0 degrees) this is at idle (~700) if the engine is turning faster than this, the timing will be different.. best of luck and make sure the terminals are jumped!! otherwise the engine will try and compensate for the difference
The timing (base), is 0 degrees before tdc. Keep in mind the timing connector must be unplugged. usually a brown wire with a black tracer, has a single connector, located under glove box, or by distributor. Thanks...
mild cam is to generic, set the timing like this for a high lift cam, advance it untiol the engine pings lightly, then back the timing of 2-3 degrees's
this is an easy one to time. the timing mark for the crank is 0 degrees-do not attempt to tum crank if cam timing is out. there is no distributor on this engine-it is advanced with your intake camshaft. The intake camshaft is the only tricky part to time. Be very careful because at 2500 rpm this cam actually moves forward via cam advance solenoid. It will hit your crank if not timed properly! so with your crank at o degrees-camshafts out of head if you need to turn engine to line up crank-on the exhaust cam(your left)behind the gear(on flange) there will be a hole big enough to put a small punch in that will line up with the top of the deck surface on the outer side(to the left). Now on your intake cam(your right) it will be just the opposite. the hole on the back side of the gear flange will line up on the right with the to p the deck surface. once in line hold intake cam and turn the gear(advancer) all the way to the right)-very important. You will have to start with you intake(put chain on) then line up your exhaust and install timing chain tensioner. always turn engine 360 degrees and recheck before you proceed. At least your at top dead center and you can visually see the lobes on both cams mostly straight up. hope I have been helpful.
It is the Same Motor, Just Built Different with the Internal Components and the Computer. You may want to change out the Computer Boxes as well if you can Locate one for that Motor. Please Rate My Response! Thanks!
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