Chris,
Glad to hear you've got the car up and running well. The pinging
sounds odd. When do you hear it? As Dick T. wrote, you usually only
hear pinging during a high load situation, such as acceleration.
Maybe you have a weak mixture, which is causing this. My mixture (with
the same Goodparts mods you have) is VERY rich at idle, but dead stoich
to a bit rich at other throttle positions. You should have no need to
retard the ignition. I am also running 10 degrees static, no vacuum
advance/retard, and premium gas. No pinging. I'm thinking you've got
a lean mixture. I installed an O2 sensor and air/fuel gauge, it helped
a lot. After spending so much on an engine, you definitely don't want
to blow it because of severe detonation. Drive your car around for a
while and check the plugs immediately after, with as little idling as
possible. Idling for too long will darken up the plugs, and won't give
you an accurate picture of your cruising mixture. It's important that
you get the cruising mixture right. Carburetors can't give a perfect
mixture over all conditions. If you are good at idle, chances are you
are lean everywhere else (with all the mods you have).
Tim Holbrook
1971 TR6
--- Chris Young <pzs83j@ndc.gmeds.com> wrote:
> First I want to relay the status of the TR. After I finally had the
> timing issue solved, I had the car looked over by Don Ensly at
> English
> Motors. Located in Utica Michigan, Don is the person to go to when
> you
> may have a question or problem with your car. I usually avoid taking
> the car in to someone. I would say in all the years I have been
> driving
> (about 14) and twenty seven cars later I have used a repair service
> about 7 times...and this two of those times have been this year. One
> with the BMW...Rear wheel bearing....After looking over the repair
> manual, I figured with the cost of the tool and the amount of time
> it
> would take I would be better off taking it to a local repair. I did
> the
> diagnosis however...This saved time and expense. Fortunately I was
> correct and it was money well spent! Second was the TR6. After the
> issues of the header glowing red I checked and checked...finally I
> had
> to do more overtime at work and just did not have the time to do the
> final sorting....So I made the appointment, ready to hear the worst
> since I still had the red header problem....Well, Don called back
> within
> a day and informed me that the car was running great! I was so
> relieved!! $200.00 later and this included him fitting a electronic
> ignition...I was on my way. Basically the carbs needed balancing and
> such. I had just rebuilt three of the things so of course they were
> not
> tried yet. Since I wouldn't let the car run long enouph, I couldn't
> do
> the carbs. Don knew where to go and he said I did everything right
> and
> it runs like it does! I can't speak highly enouph about Richard Good
> and his company Goodparts! The cam is great, the manifolds are
> beautiful , the head is a work of art and the suspension which I put
> on
> last year are all top notch....! Also I ordered a staimless exhaust
> and
> header from Rimmer Bros in the UK. With free shipping all was less
> than
> ordering JUST the header from the US suppliers. I noticed commentary
> about the Falcon exhaust and I have to say that I had no such problem
> with the Phoenix system. The system is a 2.25 single pipe system and
> exits out of the right side of the car. The header is a 3 into 1,
> 3into
> 1, then 2 into 1. The pipe was well made, mandrel bent, no kinks
> and
> fit the contour of the frame. All I had to to was custom fab some
> mounts. In this dept I bassically copied my 94 BMW...I welded a
> support
> towards the front of the exaust and used the coller hanger supplied.
> Then I used a rubber separation piece between the two to enable
> enouph
> give and isolate from vibration. In the rear I did the same to mount
> the muffler. I used a Jaguar exhaust mount among the mix. For clamps
> I
> used the "band type" They sort of resemble a hose clamp and are made
> of
> stainless. The reason I chose this type of clamp over the U clamp is
> for the simple fact that you can tighten the band type as tight as
> you
> want without crimping the pipes, creating "pipe lock". Any way.....No
> problems at all with either supplier.....Highly recommened!! Next
> year
> I'll put on the roller rockers. Then thats "all" for the 6', I have
> to
> devote time to the TVR now.....
> The car has great power and pulls with authority. With the
> suspension I
> can go into a corner and power out and get her power drifting! Very
> controlled and predictable. Now of course there's alway's
> something......This fall, I'll pull the pan and put in new thrust
> washers and maybe a high capacity oil pump since I'm there. I
> thought
> about bearings but my pressure seems to be fine. A little over 75 psi
> on startup...2mm past 50psi at 55 to 95!! 25psi to 1mm past the
> mark
> on a hot day....So I think it's fine...why mess with it. I use 20w50
> and the motor has 69,500. Let me know what you think. Now I do have
> a
> certain degree of blow by. It's not to bad but It's definately more
> than before since the head job. I'm in the progress of making a
> custom
> catch tank. I'm also thinking of putting in a PCV valve. First, is
> this necessary and what exactly does a PCV valve do? Second..The car
> has a slight bog at 2500 rpm then clears to all the rest of the way.
> Sometimes, it doesn't do it at all. I'm starting to think it's
> temperature related but I'm still in the r&d stage. Another area
> that
> is bugging me is run on when I switch off the car. Remember I have
> the
> higher compression head, so I'm thinking it's an octane thing. It
> doensn't do it all the time but it's not good when it does. The
> timing
> is set at 10 degrees right now and I'm ready to retard it to 4 or
> lower. The book call for 10 and it left Don's shop at the very
> same...but this pinging thing is not healthy. By the way it doesn't
> ping on acceleration....the car pulls wonderfully...hense the reason
> for
> my hesitation..... I don't have the anti run on valve or the charcoal
> canister. Hence the reason I'm making the catch tank. I thought
> about
> adding the anti run valve to the canister but Since the canister will
> vent to the atmosphere via a filter and PCV(?) I don't see what it
> will
> do...The car also runs a smidge on the rich side but seems to like it
> and my fuel consumtion seems to be fine. If any of you have any
> thoughts please feel free......Most of the long list of things above
> are
> no big deal, but the running on must go!!
>
> Chris Young
>
> 74TR6
> 76TVR
> 94BMW
> 93Ducati
>
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