Offshoreonly.com - Cam Specs

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Offshoreonly.com (https://www.offshoreonly.com/forums/)

- General Q & A (https://www.offshoreonly.com/forums/general-q-20/)

- - Cam Specs (https://www.offshoreonly.com/forums/general-q/342499-cam-specs.html)

sutphen 30

11-09-2016 07:39 PM

Quote:

Originally Posted by SB (Post 4499206)

I never understood the old school .030" lash cams. Way too much clearance.

If you are going to get a Bullet 'copy' ask them first what lash.

I ask for tight and when the cam shows up,,I look at the card for the recommended lash.

Black Baja

11-09-2016 08:06 PM

Quote:

Originally Posted by getrdunn (Post 4499203)

How much more on the exhaust?

That was exhaust intake I set at 0 on all tight lash solid rollers cold

getrdunn

11-09-2016 08:41 PM

Quote:

Originally Posted by sutphen 30 (Post 4499221)

I ask for tight and when the cam shows up,,I look at the card for the recommended lash.

If setting cold u subtract .006 with aluminum heads? I always have. I know it's best to set when hot but seriously how many people really do that in real world. Especially in marine applications.

14 apache

11-09-2016 09:42 PM

Quote:

Originally Posted by SB (Post 4499206)

I never understood the old school .030" lash cams. Way too much clearance.

If you are going to get a Bullet 'copy' ask them first what lash.

I would rather have a .030 lash cam and be able to catch it before zero. It don't mater tight or loose grind as long as its smooth running. My new cams are .030 from bullet.. And so post to live Recommended from MK.
Just used MK for a magnet. LOL

14 apache

11-09-2016 09:44 PM

Quote:

Originally Posted by getrdunn (Post 4499241)

If setting cold u subtract .006 with aluminum heads? I always have. I know it's best to set when hot but seriously how many people really do that in real world. Especially in marine applications.

Think its - .005 intake And -.007 for exhaust..

getrdunn

11-09-2016 11:01 PM

Quote:

Originally Posted by 14 apache (Post 4499265)

Have you used the cam in discussion in an NA by chance? I've heard 540 plus engines like it but no first hand knowledge of.
Tks
John

SFOcean

11-14-2016 10:41 PM

From the owner's manual;

900 SC Mechanical Valve .016 cold; .020 hot.

getrdunn

11-15-2016 09:23 PM

Quote:

Originally Posted by SFOcean (Post 4500625)

From the owner's manual;

900 SC Mechanical Valve .016 cold; .020 hot.

That throws a little monkey wrench into things. assuming it's the same cam/lobe why the .010 diff unless there is something else. Also I would think merc uses a custom crane grind vs the bullet grind. Still why the difference in lash? lobes maybe slightly different I would guess.

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