RE: cyl 1 and 7 don't fire

From: Jamie Calder (jcalder3@cfl.rr.com)
Date: Sun Feb 11 2007 - 13:35:25 EST


Sure...just pop on in and answer a question like nothing ever happened! LOL.
Glad to see you're around!

The rockers I have on hand for my 408 are 1.7:1. I'd like to use these but
will this be too much with a .512 lift cam?

Thanks

-----Original Message-----
From: owner-dakota-truck@bent.twistedbits.net
[mailto:owner-dakota-truck@bent.twistedbits.net] On Behalf Of Bernd D.
Ratsch
Sent: Sunday, February 11, 2007 2:21 AM
To: dakota-truck@dakota-truck.net
Subject: RE: DML: cyl 1 and 7 don't fire

Sounds like you bent a valve or it's hanging in the guide. Yes, a broken
rocker can do this. As for running the high lift and more spring pressure,
bad idea with stock rockers.

-----Original Message-----
From: rll [mailto:charger69rt@cox.net]
Sent: Sunday, February 11, 2007 12:54 AM
To: dakota-truck@dakota-truck.net
Subject: RE: DML: cyl 1 and 7 don't fire

I removed the valve cover and cylinder 1 and 7 intake rockers were
completely broken off! Now these are the stock stamped rockers being driven
by a .512 lift cam and held back by stiff RT springs. Perhaps these rockers
simply couldn't can the pressure. Any other ideas why these would fail?
Also, since these valves are always closed, shouldn't I have seen full
compression on those two cylinders?

If the intake isn't opening it can't fill the cylinder.....

rob in phx



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