Greg,
I'm glad to here that one of my suggestions worked :-)
I am using a dellorto sidedraft (basically the same as a weber DCOE) with my
maniflow LCB header.
I assume your intake manifold is made of cast aluminum. The metal is probably
thick enough that you
can grind off enough from the intake manifold so that it doesn't contact the
header, and you really
don't want them touching anyway because of the heat that would be transferred.
BTW - did you coat the header with anything prior to installing, or just leave
it bare metal?
I used the 'stainless steel' exhaust coating from Eastwood on mine, and sor far
it seems to be
holding up pretty well. The stuff is really thick and has to be brushed on, and
'cures' the first
time you run the engine with it. The other 'high temperature' aluminum exhaust
paint that I used on
the rest of the system hasn't faired as well, and is bubbling in several areas.
Regards - Bryan
>To: "Spridgets List" <spridgets@autox.team.net>
>Subject: Maniflow header installed, BUT....
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>Hello fellow listers,
>
>Thanks again for all of the recommendations on getting my Maniflow header
>installed. I finally got it in on Friday, using Bryan's pull the head
>method. Since I had to put new head studs in, it wasn't too much of a
>hassle. It took a little wiggling, but the header dropped right into place
>without having to rock the engine or cut any metal around the original
>exhaust tube hole. Now here comes the but...
>
>I put everything back on the engine, and when I started the engine, she
>fired right up. But instead of idling, the RPMs kept rising, quickly. Shut
>everything down, checked the obvious, like the throttle return spring or a
>sticking choke. Everything checked out fine. A little more research, and I
>was leaking gas below the intake manifold ports on the head. No prob, I
>must not have tightened the bolts down enough. Rechecked and they were
>fine. A little more looking, and I realized that the middle tube of the new
>exhaust manifold was supporting the intake manifold keeping it from seating
>down all the way!!! It was short of seating on the gasket by about a 1/8 of
>an inch on the bottom of the intake port.
>
>I have a Weber DFV carb (just like a DGV, only different) and am wondering
>what my options are right now. Are there any spacers I can get to push the
>intake manifold away from the head a bit, ala the SU's? Or am I stuck
>getting a new manifold, in which case it would cause me to have no choice
>but to upgrade to DCOEs...<grin> Any help is much appreciated. Thanks!
>
>Greg Gowins
>'69 Sprite
>Dublin, CA
>
>PS Sorry I missed the event in Palo Alto. It sounded like a blast. I was
>planning on attending, but it was opening weekend of soccer season, and at
>the end of the game, my only thoughts were on getting in the hot tub back at
>the apartments! I'm getting old WAY too quick...
>
>
>
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