351M backfired & died

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Dec 2, 2006 | 09:27 AM

#16

Ervin

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From: Medina, Ohio

I would go thro it again and check all your work. Might not have the plug wires on right. Check timing and TDC. Erv

Dec 3, 2006 | 10:46 PM

#17

mspooner

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Thanks, plug wires crossed.

Dec 3, 2006 | 11:40 PM

#18

grclark351

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From: chicago burbs

where did you put the washer on the oil pump driveshaft? i see you never got an answer when you asked...

Dec 4, 2006 | 07:12 AM

#19

mspooner

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It goes on the top closes to dist. You put the shaft in first with the washer going toward dist. then install oil pump. Took me a while to find a picture of this and mine was originally installed wrong when I took it apart, so I wasn't sure. The washer keeps the shaft in the oil pump when you take dist. out of engine, turned the other direction the shaft will come out of oil pump and fall down into oil pan, which is what happened to mine.

Dec 4, 2006 | 01:31 PM

#20

grclark351

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From: chicago burbs

sorry to hear that you had to go through the problem of it coming out, but glad you did get it in the right way! it won't happen again.

Dec 4, 2006 | 06:24 PM

#21

mspooner

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What degree timing should this be set at with aftermarket timing chain? Is 10 degrees right or should it be something else? This is a double roller timing chain with the 3 different keyways. I put the chain on the 0 setting. Does timing still stay the 10 BTDC stock?

Dec 5, 2006 | 12:54 AM

#22

grclark351

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From: chicago burbs

the timing chain determines the relationship of the valves to the piston, the ignition timing determines the relationship of the spark to the piston. prety much yeah, you still set the distributor to the stock spec unless you have had it recurved and limits changed. a few degrees advanced from stock will not hurt if you want to try it, but remember that whatever you add to the initial, you are also adding to the total and everything in between.

Dec 5, 2006 | 01:11 AM

#23

Torque1st

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I always use a washer above the shaft retainer to space it down when fitting the pump. Then remove the washer for final installation. I have seen the retainers worn off due to rubbing on the underside of the block. Using a washer provides a little space.

I also do not use a gasket on the oil pump. Just make sure the surfaces are burr free and flat so the pump fits well. This reduces pump vibration and keeps the oil pump bolts tight.