I second the recommendation of Lawrie on Rocker Arm Specialists. Excellend
work, quick service, and very reasonable prices. Total rebuild of my TD
rocker assembly was around $100 and took a week. That was a few years ago,
however.
Cheers,
Lew Palmer
-----Original Message-----
From: mg-t-bounces@autox.team.net [mailto:mg-t-bounces@autox.team.net] On
Behalf Of lawrie
Sent: Monday, January 19, 2009 1:02 PM
To: Gunnellj@athenet.net; Mg-t@autox.team.net
Subject: Re: [Mg-t] Source of Rocker Arm Ass'y
John,
I have, for many years, sent rocker assemblies from all the engines I
rebuild to:
Rocker Arm Specialist
19841 Hirsch Court
Anderson, CA 96007
530-378-1075
They do excellent work and their prices are very reasonable.
As for the carburetor problem, while Joe Curto may be correct in saying that
pistons in normal driving do not rise all the way to the top, they were
designed to be able to do so. Therefore, I believe, they should always be
free enough that they can travel freely. Any sticking is not acceptable,
IMHO. As well as the outer edge of the piston and the inner surface of the
dashpot needing to be smooth, it is important that the piston tube and the
steel center bore of the dashpot also be clean and smooth. I have often
found rust or contaminants in the bore and at the bottom of the tube which
impede the smooth travel of the piston. Sometimes the problem is also inside
the piston tube where the damper rod fits. Clean all these parts carefully
so that the piston can travel smoothly all the way up and down. Be careful
not to sand too much material off the outer edge of the piston or the inside
of the dashpot; a close tolerance fit is necessary for the vacuum to pull
the piston up at th
e correct rate. Remember also that the jet has to be centered correctly for
the piston to fall all the way to the bridge with a nice "click".
Lawrie Alexander
> -------Original Message-------
> From: Gunnellj@athenet.net
> Subject: [Mg-t] Source of Rocker Arm Ass'y
> Sent: 19 Jan '09 06:35
>
> Mates
>
> The rebuild of the MG TD engine is moving along well. The main problem
is we keep saying "while it's apart, why not do this, too?" So the cost is
going up as we add in a front end rebuild and rebuilt shocks. But if we
didn't, you just know something would break the week after we put the car
back together.
>
> A few weeks ago, when I asked about parts, someone mentioned a source
of a completely rebuilt rocker arm assembly. We did that on the Magnette
engine (sourced from Scarborough Faire) and it worked great. Who sources the
XPAG rocker arm assembly?
>
> Anyone have experience with carb pistons that don't go all the way up
in the bell (suction chamber)? Joe Curto says the piston only rises 3/4" to
1" and won't get stuck, but my mechanic says the car will have more power if
the piston doesn't get stuckj when it goes all the way up. We are sanding
the inside of the bell with 1000-grit paper. It takes a long time. Any
suggestions?
>
> John Gunnell
> Iola, WI
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