Not sure what you are getting at with the gasket question. But in this case, to avoid dropping the oil pan I used Permatex “Right Stuff” in place of the rubber gasket where the timing
cover and oil pan meet. Also works good for end seals on intake manifolds, instead of using the old skool foam seals they give you. I would never use RTV on an engine – silicon is good for bathroom sink drains etc around the house, and that’s about it..........
When you do have a gasket, Permatex anaerobic sealer is the cat's meow........ Or Aviation Sealer....... Or Hylomar..........
Permatex high temperature thread sealant to seal threads of all sorts – especially bolts that can enter water jacket – Head bolts – Water pump bolts – Timing cover bolts – Intake bolts
- Exhaust manifold studs.
From: Hall, Ricky L
Sent: Thursday, June 22, 2017 7:00 AM
To: '1962to1965mopars@xxxxxxxxxxxxxxxx' <1962to1965mopars@xxxxxxxxxxxxxxxx>
Subject: RE: timing
Another war story.......... Had restarted a 472 Cadillac engine out in the driveway in 2012 with 150,000 miles on it several times after sitting 20 years. Then all the sudden it
started backfiring thru the carb, and even about blew up a muffler in a big backfire BOOM! Towed it around to the garage thinking the timing chain skipped.
Turned out it wasn’t getting any oil in the distributor/timing chain area and the gear on the distributor ground down to dust. Put on a Cloyes set, updated the distributor to HEI,
and drilled a .003 hole in one oil galley plug to get oil to the timing chain and gears. Problem solved – driving the rig with that engine in it today. Chevy had a foaming oil issue in oil galleys, and that was GM’s fix, they even had galley plugs with the
hole in them.
Bob,
I remember changing head gaskets in my youth and when we cranked the engine we had the same thing happen. I think we had the valves one or more set to tight, valve lash, , 57 F____ Stock Six. We had to check them to see that the push rods
were not bent. We then set the valves as loose as possible and then adjust them properly.
Just a thought from 50 yrs. or more ago.
Coronet 500 440CI
It could be a much simpler fix. Maybe the distributor is 180 deg out? Backfiring through the carb would be a classic indication of that.
Lyle
On Thursday, June 22, 2017 at 12:34:16 AM UTC-4, Bob Turner wrote:
I changed cams a while back. I tried to start it up and it backfires through the carb.
Does it sound like I did not line up the marks on the timing chain right ( 180 ) out ?
Is there any way to tell besides taking the timing cover back off?
What would be a good gasket to use?
Thanks
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Please address private email -- email of interest to only one person -- directly to that person. That is, email your parts/car transactions and negotiations, as well as other personal messages, only to the intended recipient. Do not just press "reply" and send
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