If the bearing is misaligned, I am told there are alternatives to an entire
rebuild: one can bypass the bearing with an external feed or pull the camshaft
forward marginally and drill a new hole through down through the head - but
hopefully none of this will be necessary.
-------------- Original message --------------
From: "Jack W. Drews" <vinttr4@geneseo.net>
> Someone else suggested no oil to the top end. That's a good
> suggestion. If you installed new cam bearings, and had a local shop
> do it who is not familiar with TR's, they may have misaligned the
> rear camshaft bearing. That bearing has three holes in it and normal
> engines have two. The third hole is for feed to the rockers -- guess
> how I know.
>
> At 06:48 AM 9/13/2007, Nolan wrote:
> >I hear what sounds like valve train noise from excessive valve clearance, as
> >well an exhaust leak. Standing out from that general noise are two distinct
> >ticks, which could be an exhaust leak at the manifold/head joint, or a very
> >loose individual valve clearance.
> >
> >Were it my engine, I'd re-check the valve clearance, and re-examine the
> >manifold mounting.
> >
> >
> >----- Original Message -----
> >From: "Brian Induni" <308gtsi@adelphia.net>
> >To:
> >Sent: Wednesday, September 12, 2007 9:46 PM
> >Subject: [TR] Noisy Engine
> >
> >
> > > Hello all,
> > >
> > >
> > >
> > > I'm having a tough time pin pointing the ugly noise coming from my fresh
> > > TR4a engine and hoping you can help! I totally rebuilt this engine with
> > > new
> > > or reworked EVERYTHING, so maybe I got something wrong?
> > >
> > >
> > >
> > > Here's a link to a short video I made of the engine running
> > > http://www.induninw.com/TR4a%20engine%20noise.wmv
> > >
> > >
> > >
> > > Please give a listen and let me know what you think it might be.
> > >
> > >
> > >
> > > Thanks so much!
> > >
> > >
> > >
> > > Brian
> >_______________________________________________
> >vinttr4@geneseo.net
> >
> >This list supported in part by the Vintage Triumph Register
> >http://www.vtr.org
> >
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>
> uncle jack
>
>
>
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