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11-07-2009, 05:13 PM
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#1
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87cafe
 Gold Member
Join Date: Jan 2009
Location: gulfport ms
Posts: 50
1987 cigarette cafe racer
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bronze distributer gear!
anybody had a problem with wearing out a distributer gear causing the engine to jump time in a 454 big block, it happen twice to me within about a 6 month spand?
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11-07-2009, 05:22 PM
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#2
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Charter Member # 55
 Charter Member
Join Date: Oct 2000
Location: Omaha
Posts: 7,843
32 Active Thunder
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Do your cam's require a bronze gear???? They will wear out pretty fast. I think comp cams makes a composite one that is supposed to last longer.
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11-07-2009, 05:29 PM
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#3
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t630hps actually :)
 Platinum Member
Join Date: Sep 2004
Location: Richmond VA
Posts: 5,785
2002 Formula 382
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A buddy had a gear problem after a rebuild....for some reason the distributor was a little to far down and was wearing out the gear. A small spacer under the distributor fixed it.
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11-07-2009, 09:40 PM
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#4
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Registered
Join Date: Dec 2007
Posts: 158
1992 rinker 236 captiva
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What cam are you running is it all one piece billet roller or two piece then it has a cast iron gear You can buy teflon gaskets "shims" from jegs or summit you need to adjust the distributor with the shims to get the right gear height and make sure you can move the shaft up and down a little if you can't move it up the distributor is too far down.
Last edited by Rockfish71 : 11-07-2009 at 09:43 PM.
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11-08-2009, 12:58 PM
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#5
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87cafe
Gold Member
Join Date: Jan 2009
Location: gulfport ms
Posts: 50
1987 cigarette cafe racer
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well this is problemm, i dont no what kinda cam shaft i have but my budy is tellin me to raplace it with a steel gear, it seems to be shimmed right, id o no that the motor has been beef up alittle bit i found adyno sheet that says its pumping out 456hp, it did have prochargers on it but were takin off because of issues the the dyno said with pg it put out 647 hp, im gonna pull the distributer on the other motor havent had any issues out of that one.im alittle scared to put a steel gear on there bacause if it goes i amuch bigger prob!
Last edited by mhydro4u@aol.com : 11-08-2009 at 01:10 PM.
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11-08-2009, 07:28 PM
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#6
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Registered
Join Date: Dec 2007
Posts: 158
1992 rinker 236 captiva
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Quote:
Originally Posted by mhydro4u@aol.com
well this is problemm, i dont no what kinda cam shaft i have but my budy is tellin me to raplace it with a steel gear, it seems to be shimmed right, id o no that the motor has been beef up alittle bit i found adyno sheet that says its pumping out 456hp, it did have prochargers on it but were takin off because of issues the the dyno said with pg it put out 647 hp, im gonna pull the distributer on the other motor havent had any issues out of that one.im alittle scared to put a steel gear on there bacause if it goes i amuch bigger prob!
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When you remove the distributor look down there with a good light if you look at the gear and if it looks like shiny steel on each side of the gear then your running a billet cam if it looks like black cast steel then your running a iron gear. |
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11-08-2009, 07:42 PM
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#7
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Platinum Member
Platinum Member
Join Date: Jul 2008
Location: Little River SC
Posts: 196
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I think the best thing to do at this point is to ensure you don't have a bunch of bronze shavings or bronze material in you oil or engine at this time, next I would order up a composite gear for your distributor. Find an engine builder that has the MSD set-up distributor tool to find the proper height for the collar. If you have a MSD distributor with the slip collar you can adjust it to the tool, if not buy a slip collar and machine the distributor housing for the collar. I have to do this on every engine build.
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11-08-2009, 08:31 PM
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#8
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87cafe
Gold Member
Join Date: Jan 2009
Location: gulfport ms
Posts: 50
1987 cigarette cafe racer
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Quote:
Originally Posted by Rockfish71
When you remove the distributor look down there with a good light if you look at the gear and if it looks like shiny steel on each side of the gear then your running a billet cam if it looks like black cast steel then your running a iron gear.
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i got a boarscope out this afternoon it looks like areg cast gear its not billet, i just want to no what you guys might suggest going back with bronze or steel gear |
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11-08-2009, 08:33 PM
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#9
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87cafe
Gold Member
Join Date: Jan 2009
Location: gulfport ms
Posts: 50
1987 cigarette cafe racer
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Quote:
Originally Posted by MER Performance
I think the best thing to do at this point is to ensure you don't have a bunch of bronze shavings or bronze material in you oil or engine at this time, next I would order up a composite gear for your distributor. Find an engine builder that has the MSD set-up distributor tool to find the proper height for the collar. If you have a MSD distributor with the slip collar you can adjust it to the tool, if not buy a slip collar and machine the distributor housing for the collar. I have to do this on every engine build.
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thanks for all the info, i did drain all the oil. |
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11-08-2009, 10:44 PM
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#10
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Gold Member
Gold Member
Join Date: Jan 2007
Location: Hurst, TX
Posts: 3,210
1990 28 Apache, 03 Sea Ray 240 sundeck
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You don't want it to eat up the cam. I am going through the same thing. I had an engine builder properly set the height and check timing. Charged about an hour and a half. Engine only had 15 hours on a new custom built motor. We are hoping it was a height problem at installation. I had billet cam, so we just replaced the steel dist gear.
I'm going to pull the oil pan to get the shavings. You dont want those chunks cloging up the oil pump.
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