Topic: Andrews camshaft any knowledge??

[nteek754]

Hey all : years ago I biult a 1970 750 K engine with  andrews A grind cam mannly springs heavyduty giudes  stainless steel valves (stock pistons) well engine been sitting under the bench  and wonderd if anyone has any knowledge  of such animal I know its a mild street cam and ran it for some years  finally  tranny had issues so I parked it bought a differant 750  long story  and whole lotta fun but anyway back to the  cam any Ideas on setting the valves (clearances) I might put it on that (other) bike that has an 836  with what  Im sure is all stock under the valve cover I mean it does run good but  thought maybe I could get a bit more grunt out of it or am I wasteing my time without porting and polishing the heads help needed thanks Craig in Maine

[mwohlenhaus]

personally I think that anything you do will help performance.  a cam will increase horsepower if you choose the right one.  you will probably hear from the crowd that thinks it is a waste of time to 836 a motor and not cam, port and polish the head and have hp con rods. well, look at the thousands of broke guys that just run an 836 piston kit and have noticed a power increase.  It is all about what you want the motor to do for you, and how much you can afford.  The cam in question probably has longer duration and or slightly higher lift, so it shouldn't hurt your 836.  But when you install it, give it a couple of turns with everything bolted in place to listen for anything hitting, or plastigauge it. 

[Jerry Rxman Griffin aka MuthaF'er]

Check Axel's website - SatanicMechanic. He just added a couple cam manufacturer's specs to what he already had. He has the most comprehensive cam info I've seen.

[chung]

Most aftermarket cams run way looser lash.

.004- .006 inch being common but I've head of guys running as loose as  .0010- .012 inch on radical motors.

I think my Kenny Harmon D grind ran @ .006

Not sure but I think my RC 315C runs @ .008? It's noisy for sure, especially when cold.

[nteek754]

Thanks guys  I do remember the valve gap was larger  just cant recall what they were that site wouldnt give me any specs but gonna try again  I keep wanting to say 5 intake and 6 exs. but want to be spot on so back to point and clicking aint the internet sweet and  YES this forum its helped big time and I  hope I have helped others. have fun seven fifty four ever Craig in Maine