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FE TALK
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http://www.clubcobra.com/forums/fe-talk/)
| wrench87 |
08-12-2010 04:33 PM |
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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| zrayr |
08-12-2010 05:05 PM |
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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| Rick Parker |
08-12-2010 05:14 PM |
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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| wrench87 |
08-12-2010 05:59 PM |
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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| madmaxx |
08-12-2010 06:25 PM |
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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| elmariachi |
08-12-2010 07:21 PM |
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.
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| zrayr |
08-12-2010 07:44 PM |
That's why msd offers the gear replacement service.
Z.
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| wrench87 |
08-13-2010 06:22 AM |
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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| Barry_R |
08-13-2010 06:45 AM |
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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Quote:
Originally Posted by wrench87
(Post 1071111)
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/ |
| wrench87 |
08-14-2010 06:32 AM |
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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| elmariachi |
08-14-2010 03:40 PM |
Quote:
Originally Posted by wrench87
(Post 1071327)
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. |
| Rick Parker |
08-14-2010 04:31 PM |
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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| Barry_R |
08-14-2010 06:08 PM |
(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.
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