Tim asked me to POST this...
Bill Dentinger
Sent from my iPad
Begin forwarded message:
> From: "Tim Murphy" <timmurph@fastbytes.com>
> Date: August 12, 2014 at 5:54:38 PM CDT
> To: <BillDentin@aol.com>
> Subject: FW: [Fot] TR6 PI question
>
>
>
> -----Original Message-----
> From: Tim Murphy [mailto:timmurph@fastbytes.com]
> Sent: Sunday, August 10, 2014 2:45 PM
> To: 'EDWARD BARNARD'; 'Terry O'Beirne'; 'FOT'
> Subject: RE: [Fot] TR6 PI question
>
> It sounds like badly fouled injector nozzles. When they are working
> correctly they have a very fine spray when a pulse of fuel comes out. It
is
> very hard to see unless you pull one at a time and spray into a coffee can.
> Then you can see the spray better and the fuel collecting on the sides of
> the can. If I remember correctly the spray is a 60 degree cone.
>
> I at first sent my injectors to Kinsler Fuel Injection in Michigan. DO NOT
> send your injectors there! I pretty much got ripped off. My final
solution
> was to purchase good rebuilt injectors from Precision Engineering and
> Injection (Malcolm Jones) in England. I have since had further nozzles get
> fouled and now I disassemble them and clean them in an ultrasonic cleaner
> myself. I have had success doing this. It's quicker and cheaper than
> sending them to England and back. The nozzles are quite simple, but
> precision, parts. I made some special tools to disassemble and reassemble
> them.
>
> Prior to doing this I went through the fuel system, fuel tank ( the TR5
does
> not have baffles as the TR6 does, I added a fuel pickup on the other side
of
> the tank), return line, fuel pump and regulator. I did not have to touch
> the fuel distributor.
>
> I have a fuel pressure gauge (for Bosch fuel injection systems but worked
> good on the TR5 also) to check and set the pressure, which was pretty handy
> also.
>
> My car also had a Bosch fuel pump, but not the correct one for the Lucas
PI.
> I replaced that and the regulator ultimately.
>
> There was quite a bit I learned as I got the TR5 to run right and keep it
> running right. It would be easier to discuss this with you by phone. I
can
> lend you the fuel gauge and fittings if you like and could take a look at
> the injector nozzles if you'd like. I also have two spare injectors that
> work that you could try. Contact me and we can set up a time that will
work
> for both of us to talk about it. I have also been in contact with a TR5
> owner in Kansas who had problems and got his running correctly with help
> from a competent shop in his area. Lastly, I have made friends with a
fella
> in England who has been a great help on the project.
>
> One thing about the Lucas PI, once they are running right they are quite
> robust and reliable. BUT, all components have to be working correctly.
> When I started on my car I didn't realize that the Lucas PI was used on the
> F1 cars of the era and the Can-Am cars.
>
> Tim
>
> -----Original Message-----
> From: Fot [mailto:fot-bounces@autox.team.net] On Behalf Of EDWARD BARNARD
> Sent: Sunday, August 10, 2014 9:52 AM
> To: Terry O'Beirne; FOT
> Subject: [Fot] TR6 PI question
>
> Group and Terry:
> I am singling Terry in addition to the entire group because I know he has a
> lot of experience in this set-up.
> We have acquired a real TR6 PI
> (CP commission number) and I am having a problem with the PI system. It has
> a Bosch pump and everything appears to be plumbed correctly. I have timed
> the fuel distributor valve as the book says (multiple times) but, if I have
> the injectors out and I turn on the ignition #6 injector sprays all the
time
> and the others never appear to spray. I have raw fuel coming from the
> tailpipe (which I think it would seeing that 6 sprays continuously), but
the
> car will run to some degree, though it has no power. The valve appears to
> rotate as I see the holes open and close in sequence with the firing order.
> I am leaning towards the distributor valve being bad but could the car run
> even half-ass with only 6 spraying? Is there a balance tube of sorts like
on
> a carb model that might allow some fuel to the other cylinders? Am I
> hopelessly doomed?
> (just kidding).
> Any guidance is appreciated since this is the first PI I have had.
> Thanks in advance - Ed
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>
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