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Old 09-13-2021, 07:57 PM
jeepman42 jeepman42 is offline
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Join Date: Mar 13, 2019
Location: porter tx.
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Stripped dizzy gear

5-6 hundred miles after timing chain replace & new Cardone distributor things went big backfire/quit. After much diddling I pulled dist. & found gears stripped. New dist. is 2 7/8" from engine contact to top of gear& old dist. ,which I kept, is 3" ie new does not engage cam gear as much as original.
Can't see cam gear well enough to determine damage (must be some?)
Opinions, please?
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Old 09-13-2021, 08:05 PM
jeepman42 jeepman42 is offline
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Note: found online that problem not unusual w numerous causes.
I've found that asking general info from Google gives info from several forums including IFSJA clear back to 2001!
Then current ? can be asked re problem.
Thanks C
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Old 09-14-2021, 09:28 AM
MysticRob MysticRob is offline
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Quote:
Originally Posted by jeepman42
Note: found online that problem not unusual w numerous causes.
I've found that asking general info from Google gives info from several forums including IFSJA clear back to 2001!
Then current ? can be asked re problem.
Thanks C

Huh?
Typically dizzy gear problems are because of metallurgy mismatch, i.e. dizzy gear is too soft. Never heard of Cardone distributors, but looks like typical parts store stuff according to the google.
I've read on here that cheaply made chinese type timing covers may also cause this issue. Did you reuse the stock cover or change it out?
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Old 09-14-2021, 12:49 PM
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tgreese tgreese is offline
 
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A1-Cardone is a big reman supplier.

You need to remove the timing cover and inspect the cam gear. Year/model/equipment? It matters. At worst, I believe you can buy a matched set of gears from MSD or?

https://www.jegs.com/i/MSD+Ignition/...07MSD/10002/-1

Possible the timing cover could be at fault, or the reman insertion depth is too short. I would check the insertion and alignment before I put it back together.
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Last edited by tgreese : 09-14-2021 at 12:56 PM.
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Old 09-14-2021, 01:01 PM
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babywag babywag is offline
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several things need to be done when replacing a timing chain & distributor...

#1 timing cover must utilize the locator dowels
if they were missing the cover can become misaligned
#2 timing chain sprocket MUST BE CHECKED for proper oil slot location
some are NOT and need to be corrected
#3 swap/reuse the old distributor gear.
#4 must use a distributor gasket on top of the cover.
#5 gear "mesh" should be checked/verified with something like gear marking compound or dykem blue

a final note, aftermarket parts are not great!
throwing them on just because you want new/reman is a BAD idea.
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Old 09-14-2021, 06:27 PM
jeepman42 jeepman42 is offline
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Thanks for replies.
New timing cover used -original had ears off as I remember.
Definitely will do more checking , measuring this go round .
also will get a new go at the front seal which is also leaking.LOL
If I was a real mechanic I'd get it right the first time, right? HAHAHAHAHA!
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Old 09-15-2021, 01:28 PM
ShotRod ShotRod is offline
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Same thing happened to me, I used the new HEI dist gear (summit) and it finally ate through the cam gear, about 1000 miles later. Timing cover/chain/gears were all original too.
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Old 09-15-2021, 06:42 PM
jeepman42 jeepman42 is offline
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Smile

Shotrod, I've been playing with my 2 GWS for25 yrs . if you can think it, it could happen. I've read here that nobody buys a GW thinking that it will be low maintenance. BUT I would not trade mine for the NEW(give me a break) Grand Wagoneer @$ 85 to 92T. Looks like a glorified Grand Cherokee to me?
In my case, vintage vehicles for vintage folks! But it's amazing that you young guys & girls love em too!!
thanks for your response. C
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Old 09-15-2021, 06:55 PM
jeepman42 jeepman42 is offline
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Today, I put my original dizzy back in. Lubed it so it was as smooth as the Cardone replacement. This was why I didn't use it originally. DUH.
Started w a little piddling! Trying to decide whether to take to shop for machine analysis. Def exhaust smell in front & black sooty exhaust on floor.
189T mi. Only the Shadow knows! LOL. Opinions are free & welcome!
thanks, Charles
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Old 09-18-2021, 11:18 AM
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fulsizjeep fulsizjeep is offline
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Quote:
Originally Posted by jeepman42
Today, I put my original dizzy back in. Lubed it so it was as smooth as the Cardone replacement. This was why I didn't use it originally. DUH.
Started w a little piddling! Trying to decide whether to take to shop for machine analysis. Def exhaust smell in front & black sooty exhaust on floor.
189T mi. Only the Shadow knows! LOL. Opinions are free & welcome!
thanks, Charles

There is a good chance the cam gear is already damaged. I have been able to see that gear through the hole the dizzy drops into. It takes a good light and and a straight view down to the cam gear. The MSD 8005 & 8007 are the ones I recommend. DO NOT buy the Omix-Ada product. They're cheap for a reason.
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