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Message-ID: <397476D0.F1DF57E1@ndc.gmeds.com>
Date: Tue, 18 Jul 2000 11:25:05 -0400
From: Chris Young <pzs83j@ndc.gmeds.com>
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To: Bert Van der Stee <bvdstee1@yahoo.com>
Subject: Re: FW: Unleaded OK?
References: <01BFF0CD.2A960560.bvdstee1@yahoo.com>
>
I'll have to agree with Dick T on this one... The value of unleaded fuel was
the action of the lead on the valves, seats and guides....The function was
one of lubrication. Of course without the lead the wearing of the components
would/could be accelerated. Well, this will depend on individual cars but in
my case the head "lasted" until 65,000 miles before the just on start up and
acceleration smoking was just becoming noticeable and started to annoy me.
After a compression check, I had the head rebuilt with the new guides and had
seats installed. Now my compression is about 170 across the board with a 10%
variable in two cylinders.... Oops of track......Basically the cars will run
and run fine on unleaded. Eventually the guides will wear. Sure lead may
have made them last a little longer but the well known irregular pressure the
rockers put on the valves with the minimal oil the upper section of the motor
gets is, I think is more of a factor in this. Since the youngest TR6 is now
24 years and Unleaded fuel has been prevelant in most parts of the country
for at least 15 to 20 years, what could be the actual cause of the valve
guide demise? Lack of lead, original design( ie, material), simple wear?
Who really knows.....What is known; Mechanical items wear out....When it's
time for a rebuild, just update it...simple as that. Europe is starting to
go through all of this now. They are finally phasing out leaded and in the
English car mags, owners are writing in inquiring about lack of lead...Some
use additives, others just let it ride....... In any case, the cars will
run.
Now another question....Does anyone know to get those blasted headrests off
the the seats? They have a tab on them that keeps them from pulling out.
They were removed last year by the upholsterer, retrimmed and put back. Well,
now I'm taking them back out to have them redone as the seats are great bit
the headrests he didn't french seem to match....Now he can as he now has the
machine at work.....I have a sliver of metal with a handle I got from the
guy's in the shop but I'm not having a lot of luck getting them out. I don't
want to damage the leather so I don't want to be to aggressive with poking
around through the hole.... Any experience would be greatly appreciated!
Otherwise I'll have to wait to drive the car in and have him do it...I wanted
to get a jump on timing since he's not the fastest guy in the world....
Chris Young
74TR6
76TVR
94BMW
93Ducati
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