Yea, brain fart on my part too... I said, "the bottom of the rocker rides on
the curved base part of the stud instead of the fulcrum point". That's with
the rockers uninstalled playing with them at my desk. There's no push rod
or valve tip to hold the rocker in place which is why it slips way down to
the base! Makes total sense now. If it did rest on the fulcrum point,
there would be no adjustability...I see the light!! Am I on the right track
now?
Thanks,
James
(first roller rocker install...)
-----Original Message-----
From: owner-dakota-truck@bent.twistedbits.net
[mailto:owner-dakota-truck@bent.twistedbits.net] On Behalf Of Bernd D.
Ratsch
Sent: Monday, February 12, 2007 12:23 AM
To: dakota-truck@dakota-truck.net
Subject: RE: DML: cyl 1 and 7 don't fire
Brain fart and a mistype on my part - yes, 5/16" in the head. It's late - I
need sleep. ;)
-----Original Message-----
From: Jamie Calder [mailto:jcalder3@cfl.rr.com]
Sent: Sunday, February 11, 2007 11:15 PM
To: dakota-truck@dakota-truck.net
Subject: RE: DML: cyl 1 and 7 don't fire
I believe it's the other way around (or I misunderstood you). The head is
tapped for 5/16" coarse and the rocker accepts 3/8". The stud has the right
thread sizes but the bottom of the rocker rides on the curved base part of
the stud instead of the fulcrum point. Either the rockers or studs need to
be changed
-----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 10:22 PM
To: dakota-truck@dakota-truck.net
Subject: RE: DML: cyl 1 and 7 don't fire
The stud required (depending on the rocker) should be a 3/8". Keep in mind
that the thread is 3/8" coarse in the Mopar heads. The Ford studs should
work...5/16" on the rocker side is a bit small though for all out
performance.
- Bernd
-----Original Message-----
From: Jamie Calder [mailto:jcalder3@cfl.rr.com]
Sent: Sunday, February 11, 2007 6:54 PM
To: dakota-truck@dakota-truck.net
Subject: RE: DML: cyl 1 and 7 don't fire
Did you see the Comp Cams list below? Are those the correct studs? The
part name "Comp Cams 4504-16 Studs 302 Ford 3/8 x 5/16" suggests it's not
and the way the rocker sits on them just doesn't seem right.
I'll check out Comp web site and also call KRC tomorrow since he sold them
to me.
Also as noted below the Comp Cams push rods are slightly larger then the
stock ones. I take it that this is a good thing since you mentioned your's
are 7.050 and corrects the geometry.
-----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 6:31 PM
To: dakota-truck@dakota-truck.net
Subject: RE: DML: cyl 1 and 7 don't fire
Forgot to mention...make darn sure you have the correct valve springs or you
will break them (I did several times). I'm actually running longer pushrods
(Smith Brothers 7.050") to help correct the geometry. You can get away with
the pushrods you have, but again...make darn sure the springs you have are
capable of handling the larger lift.
- Bernd
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