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08-12-2010, 04:33 PM
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CC Member
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Join Date: Mar 2007
Location: seekonk,
ma
Cobra Make, Engine: factory five mkIII roadster 445 fe quick fuel 750 q series,irs
Posts: 468
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msd #8594 distributor question
i have the msd 8594 distributor for my 445 fe because i am running a comp cams hydraulic roller they reccomend i run a bronze gear, can anyone tell me if the gear on this distributor is a press fit or a slide on?. if it is a press fit what are people using to remove it?
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08-12-2010, 05:05 PM
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Join Date: Aug 2007
Location: NE Oklahoma,
OK
Cobra Make, Engine: Fords
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I think they all have a pin that you can drive/press out to remove the gear I think msd used to change out gears for free.
Z.
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'65 K code Mustang
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Last edited by zrayr; 08-12-2010 at 05:08 PM..
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08-12-2010, 05:14 PM
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Join Date: May 2001
Location: California,
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Cobra Make, Engine: NAF 289 Slabside Early Comp Car with 289 Webers and all the goodies. Cancelling the efforts of several Priuses
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It is a light interference fit. Correct tool is a gear puller but you can do it by grasping the gear from below in a vise, or clam shells and driving the shaft out with a soft hammer or press after removing the shear pin. It is not difficult. Just do it carefully. The squeeze is intended to assist the gear in transmitting the torque to turn the oil pump and not leaving it exclusively to the Shear Pin.
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Rick
As you slide down the Banister of Life, may the splinters never be pointing the wrong way 
Last edited by Rick Parker; 08-12-2010 at 10:17 PM..
Reason: clarification
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08-12-2010, 05:59 PM
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CC Member
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Join Date: Mar 2007
Location: seekonk,
ma
Cobra Make, Engine: factory five mkIII roadster 445 fe quick fuel 750 q series,irs
Posts: 468
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so is the correct tool a small 3 jaw puller?, i have the puller for the ford tfi distributor but it does not work on this one.
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08-12-2010, 06:25 PM
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Make sure you mark location of current gear. a little press would be best. It is possible to break the gear. Go with a billet cam and steel gear and be done with it.
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08-12-2010, 07:21 PM
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Join Date: Jul 2008
Location: Driftwood,
TX
Cobra Make, Engine: Contemporary Cobra, 427 side oiler
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I can tell you that we JUST pulled a gear from a 8594 and it was more than just a light press fit and it was very difficult. We destroyed the hex opening on the shaft tip getting it off, trying all the conventional methods. Your best chance would be to heat the gear and then use a gear puller, but be sure you put something over the shaft end to protect the oil drive shaft insert, which is very soft. We wound up buying a new shaft, and the machine shop that reinstalled the new gear complained that it was a very tight fit going back on. |
08-12-2010, 07:44 PM
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That's why msd offers the gear replacement service.
Z.
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'65 K code Mustang
'66 Galaxie 500
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08-13-2010, 06:22 AM
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Join Date: Mar 2007
Location: seekonk,
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Cobra Make, Engine: factory five mkIII roadster 445 fe quick fuel 750 q series,irs
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i called comp with my serial number for the cam they told me to only run a bronze gear, i dont want to ruin a 13k engine. what gear is everybody using on the comp cams keith craft cams?.
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08-13-2010, 06:45 AM
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The gear is a light press fit with a retaining pin, as are most Ford gears.
Remove the pin. You can use a modest amount of heat if needed. A battery puller short puller will remove and destroy the iron gear. The new gear needs to be pressed on to the dimensions specified by MSD - they are not identical going by the drilled hole. Actually best to locate the hole 90 degrees from the original one. Once properly located you finish drill the hole and install the pin.
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08-13-2010, 08:59 PM
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Quote:
Originally Posted by wrench87
i called comp with my serial number for the cam they told me to only run a bronze gear, i dont want to ruin a 13k engine. what gear is everybody using on the comp cams keith craft cams?.
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this gear will be the correct one for the FE and a MSD distributor. MSD's shaft size is larger than the factory FE distributor. listen to Barry's advise and spin the gear 90 deg from the existing hole , press on, and then redrill thru the gear and the shaft an all new hole. the new gear will come with a new roll pin. lube with the supplied lube on install. note debur the old hole of shrapnel before pressing on it will make it easier. and use some oil for lubricating before press fit.
http://www.summitracing.com/parts/MSD-8581/
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Fred B
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08-14-2010, 06:32 AM
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Join Date: Mar 2007
Location: seekonk,
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Cobra Make, Engine: factory five mkIII roadster 445 fe quick fuel 750 q series,irs
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so you have to drill a new hole in the shaft?, why cant they just make the gear correctly so you can use the old hole? i think msd should offer the dist with a choice of gears it would make it a lot easier and cheaper.
or better yet when you buy a camshaft it should come with the proper gear to use.
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08-14-2010, 03:40 PM
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Join Date: Jul 2008
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Cobra Make, Engine: Contemporary Cobra, 427 side oiler
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Quote:
Originally Posted by wrench87
or better yet when you buy a camshaft it should come with the proper gear to use.
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But that is too simple and easy, neither of which apply where FEs are concerned. |
08-14-2010, 04:31 PM
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Join Date: May 2001
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Cobra Make, Engine: NAF 289 Slabside Early Comp Car with 289 Webers and all the goodies. Cancelling the efforts of several Priuses
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I would imagine that no individual Cam Grinder or vendor wants to be the first to accept the liability for marketing the two combined. Not to mention the disadvantage in price point. There are too many variables with Oil types and installation procedures. This would hold true regardless of it being a FE or SB. Just marketing liabilities.
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Rick
As you slide down the Banister of Life, may the splinters never be pointing the wrong way
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08-14-2010, 06:08 PM
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(He shaft is not drilled in production. They press the gear on to dimensional specs and then drill. They use the same parts for service.
.
__________________
Survival Motorsports
"I can do that....."
Engine Masters Challenge Entries
91 octane - single 4bbl - mufflers
2008 - 429 cid FE HR - 675HP
2007 - 429 cid FE MR - 659HP
2006 - 434 cid FE MR - 678HP
2005 - 505 cid FE MR - 752HP
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