arn't you glad you asked ?? rob
----- Original Message -----
From: <GuyotLeonF@aol.com>
To: <kaskas@earthlink.net>; "FOT" <fot@autox.team.net>
Sent: Sunday, December 02, 2001 5:37 PM
Subject: Re: 6 cylinder pushrod length required
> In a message dated 02/12/01 19:41:57 GMT Standard Time,
kaskas@earthlink.net
> writes:
>
> > Subj:Re: 6 cylinder pushrod length required
> > Date:02/12/01 19:41:57 GMT Standard Time
> > From: kaskas@earthlink.net (Kas Kastner)
> > To: GuyotLeonF@aol.com
> >
> > The length is also effected by the base circle diameter of the camshaft.
> If
> > you have a re-ground cam the rod will come out shorter due to the
reduction
> > of the base circle of the cam. Cams, even stock, can have a very
different
> > base circle diameter so a known length dosen't mean it will be what you
> > want.
> > ----- Original Message -----
> > From: "Rob Dardano" <19to1tr6@mediaone.net>
> > To: <GuyotLeonF@aol.com>; "FOT" <fot@autox.team.net>
> > Sent: Sunday, December 02, 2001 9:05 AM
> > Subject: Re: 6 cylinder pushrod length required
> >
> > > Leon your push rod lenght will be determind buy your rocker geomitry
If
> > the
> > > head has been modified the stock rods could be a little long The tip
of
> > > the rocker should ride on the center of the valve stem, I hope other
> > > members will correct me or perhaps state it correctly rob
> > > ----- Original Message -----
> > > From: <GuyotLeonF@aol.com>
> > > To: "FOT" <fot@autox.team.net>
> > > Sent: Sunday, December 02, 2001 9:08 AM
> > > Subject: 6 cylinder pushrod length required>
> > >
> > > > Friends,
> > > >
> > > > I require the length of an engine pushrod:
> > > >
> > > > It is part # 151073 as found in the Vitesse Mk.2 engine, also the
> GT6-2,
> > > and
> > > > GT6-3 [up to KE/KF10000].
> > > >
> > > > but NOT part # 129058 from the Vitesse 6, 2-Litre Mk.1 or GT6-1.
> > > >
> > > > nor part # 149513 from GT6-3 [from KE/KF10001], Triumph 2000 Mk.2,
TR6
> > > [all
> > > > CP models]
> > > > (this one is 20.6 cm, or 8.11" long, to the end of the 'ball').
> > > >
> > > > nor part # 148916 from TR6 [all CR models]
> > > > (this one is 21.1 cm 8.30" long).
> > > >
> > > > Could anyone please confirm the length of 151073 ?
> > > >
> > > > Thank you in advance
> > > >
> > > >
>
> Rob, Kas, Thanking you both for your responses,
>
> Further to the above, the reason that I need to know the length of 151073
is
> because I presently have fitted to my Vitesse Mk.2/GT6+ engine, a Holbay
> camshaft of "Inlet 37/67 exhaust 73/31", this has worked, and continues
to
> work very well indeed for the last 9,000+ miles, with a slightly raised
> compression ratio, (only about half a ratio), and the rocker gear
presently
> comprising an OE Triumph shaft of the correct hardness, lightened and
> balanced rocker arms with the oilways slightly opened up, and bushed with
> oilite phosphor bronze...and taking the cam lift via standard pushrods
> 151073.
>
> I have obtained from Ted Schumacher a set of Roller Rockers, (as original
1.5
> ratio), which I intend to fit to my present rocker shaft, along with the
> solid spacers that I currently have fitted instead of spacer springs,
(long
> gone).
>
> At the same time, I think it would be a good idea if I replace the
original
> 151073 pushrods with tubular chrome moly pushrods of the correct length
for
> ultimate reliability at high rpm.
>
> However, I need to order the correct pushrods and have them in my
possession
> before I take down the top of my engine to do the neccessary work, and all
I
> have in my possession at the moment is one set of 149513 pushrods from a
TR6
> (CP), which measure 8.11" and one set of chrome moly pushrods (on loan),
> which measure 8.3" (suitable for a TR6 (CR)).
>
> Therefore, I still do not know the length of the 151073 pushrods presently
> working perfectly well in my engine!
>
> I know that since I am not altering the camshaft from the present spec,
nor
> am I removing the cylinder head, and the roller rockers are 1.5 ratio,
just
> like those presently fitted, I would be well advised to fit chrome moly
> tubular pushrods of the exact same length also.
>
> Does that make sense?
>
> Regards
>
> LC)on
>
>
> 1921 French Grand Prix driver: Albert Guyot, to Ernest Ballot ,
> "Therebs only one winner in any race: the man who gets home first."
>
> 1963 Triumph Vitesse 2-Litre Convertible (Diva)
> 1988 Volkswagen 1600GT Scirroco Coupe (Driver)
> Wimbledon, London, England.
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