disti/cam gear - JeepForum.com
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post #1 of 5 Old 09-16-2021, 11:03 AM Thread Starter
rumb
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disti/cam gear

Got the timing cover off and the cam gear is stripped. I already have new matched set.


Where did all the metal shavings go? There are some in the timing cover but not enough to look like it is all of them.



This engine with the new HEI disti has only been ran about 30 minutes. I bought it from the guy that installed it. I cant see the cam gear getting that bad that fast. Is is possible that it was wearing out already and I just pushed it over the edge? Someone has been in before and changed the timing chain and gears.



Also I managed to distort the crank damper getting it off, Man was it tight on there.
I managed to find a new one from Jegs.

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post #2 of 5 Old 09-16-2021, 01:15 PM
uptillnow
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Quote:
Originally Posted by rumb View Post
Where did all the metal shavings go? There are some in the timing cover but not enough to look like it is all of them.

This engine with the new HEI disti has only been ran about 30 minutes. I bought it from the guy that installed it. I cant see the cam gear getting that bad that fast. Is is possible that it was wearing out already and I just pushed it over the edge? Someone has been in before and changed the timing chain and gears.
The AMC V8's are notorious for mis-match distributor-cam gear hardness.

I understand that there are three different hardness' of these gears, and a matched set is preferable, although some have had good success using the "old" distributor gear because they are matched.

I have seen a mis-matched gear combo actually going 100 miles before it stopped running. It doesn't take much for them to self destruct.
There are a few aftermarket distributor manufactures that will not put a gear on their distributor to insure you use your dist gear or get a matched set. They want to eliminate their liability.

The 6 cyl gear conversation always gets mixed up with the V8 gear issues. I have never seen a 6 cyl gear issue. I'm sure there are some but not because of matching hardness.

Flame suit on, fire extinguishers near by


UTN
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post #3 of 5 Old 09-16-2021, 04:53 PM Thread Starter
rumb
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I found a video today where guy showed cam gears just plain wear out on v8's.

Due to the lack of metal shaving found I would have to agree with that my gear wore over time and then the new disti cooked it.



Either way doesn't really matter. New parts and back together soon.
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post #4 of 5 Old 09-16-2021, 05:49 PM
Matt1981CJ7
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Change your oil and oil filter, NOW.

That's likely where the rest of the shavings are.

Matt


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post #5 of 5 Old 09-16-2021, 11:56 PM
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Hopefully they are in the sump or oil filter!!

BagusJeep lives in Bali with far too many 4x4s:
1981 CJ7 258ci - Bagusjeep
1984 CJ7 258ci - Puthijeep
1981 J20 258ci - Gladys
1951 Willys CJ3A/MB/M38 - Little Willy
1995 Cherokee 4.0 - CHEROKEE
1980 Land Rover Series III 109" troop carrier - ROVER
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