Panhead cam questions

Gear Case (cams, idlers, cam cover)
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hdstm
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Panhead cam questions

#1

Post by hdstm »

Hello board.

I have searched the various boards trying to find an answer to this question and am now just confused as hell.

I've got a Panhead with '58 cases, stock stroke, .060 over pistons, stock heads. running aftermarket auto advance with points
Motor now has 2700 miles on it. Runs damn good, but is a BITCH to start. Tried Bendix, S&S "E", CV, back to S&S and now Bendix again. acts the same with each carb. Checked points, timing, coil , different gas, different distributor, no intake leaks. Haven't checked valve timing yet, but thats next.

Acts like it's not pulling fuel into cylinders. Needs 10 primer kicks before it'll fire. Local guy told me that the Andrews "J" grind cam that I'm running is likely the reason. Opens the intake valve too soon at kicking rpm. spits fuel away from the chamber. Maybe ?

Anyway, started looking at cam choices and can't find the specs for the stock OEM cam and also the only "stock replacement " cam I could find is the "Replica " Sifton cam which I understand is made in China for V-Twin.

I only replaced my cam because the OEM one was flaking.

I just bought 2 used OEM cams, one an "H" and don't know about the other one. ( not received yet ).
I've been told it's likely an FL cam which is a little milder.


I'm not interested in "performance", I want something thats gonna start well, idle well and be kind to my valve train. I don't wanna be the guy who's shit doesn't work right and is holding everybody up !

So here are my questions,

Any insight on the Andrews J grind ?

Where can I find the specs for the stock Panhead cams ?

Are the Sifton "Replica" cams made in China ?

Are there any NEW stock spec cams available in the aftermarket ?

Given a choice, which used OEM Harley cam should I run ?

What aftermarket cam for a stock motor ?

Thanks in advance for any info and sorry for the rehash.

Scotty
1950Panhead
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Re: Panhead cam questions

#2

Post by 1950Panhead »

Any insight on the Andrews J grind ?
J is the mildest of the ten cams Andrews makes for panheads.
Where can I find the specs for the stock Panhead cams ?
Stock lift is .412
Are the Sifton "Replica" cams made in China ?
Vtwin owns Sifton now, most Vtwin parts are foreign made.
Are there any NEW stock spec cams available in the aftermarket ?
Sifton replica is the only one I know of.
Given a choice, which used OEM Harley cam should I run ?
Any good one you can find.
What aftermarket cam for a stock motor ?
Sifton replica or Andrews J, take your pick.

Jerry
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Re: Panhead cam questions

#3

Post by Hog54 »

Im running the biggest sifton cam you can run with hydraulic lifters on a stock spec motor and I have no problems kicking the motor over.I think it was this one.

Cobra (112) Cam.


Edit:Actually I think that was my shovel.On my pan I run the Andrews AB cam with .470 lift.
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Re: Panhead cam questions

#4

Post by steve_wood »

Scotty:

Check to see if your clutch is slipping when you're kicking it over.
hdstm
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Re: Panhead cam questions

#5

Post by hdstm »

steve_wood wrote:Scotty:

Check to see if your clutch is slipping when you're kicking it over.

Already done that also, but thanks for the thought.

Scotty
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