Cam pin.

[Dbeck002]

I installed a short cam pin in my cam (the one that locks the gear to the cam) and my shop says it would be a better idea to use the long one. I hear that the long one is too long though and material has to be shaved off to be flush with the cam gear.

Anyway its too late, i tapped the short one in but i had an idea. I cut a section of the large pin and inserted it into the hole where the pin goes into the cam gear. My shop says this is a good idea to keep the short pin from walking out. Since the washer covers half of the pin face and I torqued it down pretty nicely, do you think i did the right thing? Has anyone used the short cam pin and encountered any problems?

 

[rd]

I guess that will work.

The short pin is meant to allow space for the locating tab on the two piece fuel pump eccentric. I have always replaced them with the long pin and single piece fuel pump drives on my carbed cars.

 

[04sleeper]

I would pull it out and replace it with the long pin.

I know several people who have tried the short pin only to have it shear off.

 

[txstang84]

 

[Dbeck002]

Well it doesnt matter how long the pin is, the shear force is dependant on the cross section. even if it was a nub that was an 1/8" long it was still take the same amount to shear.. see what i mean. Im just worried it will walk out thats all. Thanks for the replies guys this helps a lot.

 

[04sleeper]

Well it doesnt matter how long the pin is, the shear force is dependant on the cross section. even if it was a nub that was an 1/8" long it was still take the same amount to shear.. see what i mean.

Not really. I have seen it first hand and will NEVER run one like that.

Sorry.

 

[Dbeck002]

What im saying is this, the stock cam has a short pin (that is hollow mind you) and it held up for 15 years. i installed the short pin on the new cam (which is solid), the only problem i see with it is walking its way out of the cam. I put extra material infront of the pin with the other pin (box came with 2, long and short so i cut some material from the other pin and used it like a stopper) and tightened the washer down, my shop said this is ok and would work better than filling the hole up with sealant. i hope this makes things clearer, its hard to explain.

 

[04sleeper]

OK. I got you now.

 

[Dbeck002]

haha good..

 

[maverick0716]

I tried the long pin with my Comp Cam......too long! I couldn't get it out either, so I had to cut it and file the edges so they're slightly rounded. It was a pain in the ass, but it worked good.