Panhead Cam Cover

Gear Case (cams, idlers, cam cover)
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jamesn
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Bikes: 55 Panhead - 70's style chopper

Panhead Cam Cover

#1

Post by jamesn » Sat Nov 02, 2013 9:43 am

Hi Guys, hope somebody's able to help me.

I've a stock 4 finned 64 Panhead Cam Cover with top centre oiler hole and wanting to install it on my new S&S 65 short block. It fits perfectly, all bushings such as pinion & cam are exactly the same.

However, the 65 S&S short block flat finish cam cover that came with it has no pinion gear bush oil feed (hole), on this cover it has been welded up, the pinion bush also has no oil feed hole for the pinion gear shaft.

Is there any reason why they would have welded up the oil feed hole to the pinion gear shaft, or is this oil feed hole no longer required on 65 panhead engines. It just doesn't make sense to me. Why do away with the pinion shafts bushing oil passage?



58flh
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Re: Panhead Cam Cover

#2

Post by 58flh » Sat Nov 02, 2013 10:35 am

The S&S motor has a different style or-(updated),as they advertise it!,therefore oil passages in your 4-fin are not needed!--Don't ruin a oem cover for the 4-finn look.S&S has 4-fin covers if you really want one on it.---RICHIE--& 1965 panhead motors do use the passages in the cover for pinion oiling to motor.

jamesn
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Re: Panhead Cam Cover

#3

Post by jamesn » Sat Nov 02, 2013 9:34 pm

Thanks 58flh but S&S don't do a 4 finned cover with a top oiler hole

jamesn
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Re: Panhead Cam Cover

#4

Post by jamesn » Sat Nov 02, 2013 9:46 pm

Looking at the end of pinion shaft it looks like it may have it's own internal oiler and may be the reason the 65 cam covers pinion bush has no oiler hole and the covers hole has been welded shut, as it's not required. Therefore, to keep my cam cover original what could I use to block the covers pinion oil passage with, i.e. glue, that could be drilled out at a later date if ever required.

My lifter blocks oil hole has been blocked with what looks like an araldite, for the solid lifters being used. This could be easily drilled out if ever wanting to return to hydraulic lifters.

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Re: Panhead Cam Cover

#5

Post by Panacea » Sat Nov 02, 2013 9:48 pm

When you look into the bushing, is there an oil passage drilled in the center?

jamesn
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Bikes: 55 Panhead - 70's style chopper

Re: Panhead Cam Cover

#6

Post by jamesn » Sat Nov 02, 2013 9:57 pm

On the 65 pan cover that came with the block the oil passages are identical to my 64 cam cover. However, the only difference is that the bush for the pinion shaft has no oil hole at all. Plus the exit hole from the covers pinion oil passage has been welded shut. I can only assume that the pinion shaft has it's own oiler system and the pinion no longer requires oil from the oil passage in the cover.

jamesn
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Re: Panhead Cam Cover

#7

Post by jamesn » Sat Nov 02, 2013 10:12 pm

This may be better to explain - some pictures!
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Re: Panhead Cam Cover

#8

Post by RUBONE » Sat Nov 02, 2013 11:50 pm

The "full flow" oiling was a '73 update. Previously all were set up like your '64 cover with momentary oiling. A stock '65 cover would be the same as your '64. If you run that '65 "style" cover be sure you have the associated parts. The correct full flow pinion shaft and '73 and later type oil pump.

jamesn
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Re: Panhead Cam Cover

#9

Post by jamesn » Sun Nov 03, 2013 12:25 am

The 65 cover is what I'm wanting to remove and replace it with my original 64 cover. So the engine is set up for the 65 cover as shown in picture with no oil hole for pinion bush. Is fitted with a high pressure oil pump.

What I'm mostly concerned about is, if using my original 64 cover will I need to also block the oil hole in the pinion bush and the exit hole in the cast as they have done with the 65 cover?

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