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question please, was all tr6 inc export cars painted black on rear panel ?

What would be the difference between the TR2 and 3A? Unless the 3A has electric fuel pumps they are essentially the same fuel system.

I returned home yesterday after a 6 week trip to the USA and Canada. The TR2 started first touch of the button. To expand on what I posted earlier, I don't use the choke to increase idle revs when cold. I start her up and push the choke all the way in after about 15 seconds. Obviously the engine won't idle straight away but once the temp gauge moves off the bottom the engine will reduce revs under braking but still idle, slowly. If I hit the brakes hard it might stall. Once fully warmed up it will reduce revs under heavy braking but not enough to stall.

I'd check the wiring before I replaced the heater fan. Removing the heater plenum to replace the fan is not an easy job. And if I had the heater box out I'd look at replacing the heater core while the heater planum was out.

Yep, and to put the possibility of pump oversizing into perspective, a TR6 at 100 mph , getting 20 mpg ( and some old posts on this forum have claimed 30 mpg at 100mph !!) will consume 23 litres/hour through the engine. A long time ago , I did mass flow calculations for my TR's Bosch pump and found the bulk of the fuel is being returned through the PRV, even when flat out. I my aluminum tank the PRV return is on the opposite side of the tank to the pump suction, the fuel cools as it flows across the tank, I've had few fuel vapourization problems, the main one that I can remember was

The company with the Smiths tooling that make heaters and their motors. https://www.mg-cars.org.uk/ah/

Hi back to the heater motor. I have got the heater off, and the motor off. Eextracted it and opened it up. It’s completely burnt out - no point trying to fix that! So I’m on the look out for a replacement motor. and yes it does have a resistance coil inside the heater box, so I guess that makes it a two speed heater I reckon.

Hi Colin/Waldi Heat seems to be at the route of a lot of the reported PI issues with no real suitable equivalent for the original Lucas pump which still suffered from heat issues. So for any mathematicians how big a cooler would be required to dissipate 230w with an ambient air temperature of 25c? I have a cooler taken from a Citroen C4 Diesel mounted under the rear arch taking fuel from the PRV and then back to the tank but wonder if its big enough? Anecdotally I found making an exhaust heat shield to cover the rear box and pipes made the boot and tank noticeably cooler to t

Mine kept doing this and following reading a thread on here, I traced the problem to one of the ignition terminals shorting on the dash back - obviously my ignition switch is in the centre panel, not the strg column. Worth checking before shelling out for the fan and fitting

Just the two cars we had a drive out,just a family trip to Budleigh Salterton Beach where we enjoyed a crab sandwich and an ice cream. Pleasant walk and then off to Lymstone Manor for a tea.

Hi Colin, that is how I understand it. The pump current is always the same, regardless of the demand by the engine. And the energy consumption is 17.5A at 13 V which equals 17.5 x13 = 225-230 W, of which the majority will warm the fuel in the tank (energy-dissipation). So a smaller capacity pump will: 1) Put less load on the electrical system. 2) Warm the fuel in the tank less quickly. 3) Reduces the likelihood of issues with vibrations due to high flow velocities or pulsations in hoses and prv. Waldi

Thanks Peter, I'm not sure what it connects on a carb car, but it's a blanking plug on the Pi. I posted this query on the TR250/5 sub-forum instead on the TR6. Richard.

That's good to hear.

Yes revs are dropping down as they should, back to how she has run since engine rebuild in 2019. Mike Redrose Group

I think Land Rovers used the same motor - is it this one? https://pablanchard.co.uk/12v-Heater-Motor-Lightweight-Genuine-Smiths-811.4700

Are your revs dropping off OK though?

Following on to this thread, I was quite happy to find another color video of action in Hawaii sports racing. Cheers Dan

Hi all I have just had Wilson and Sons in Leven go over my car. It had only done 28 miles since 2015, and I bought it on Bonhams auctions in August. Most was ok on the car, I need a new wing on the drivers side, which I have bought, with fitting kit, so that will be ready my bodyshop man. One thing they did point out is that I need a new heater fan, as the one in the car keeps blowing the fuses. I have just checked on Rimmer bros and a heater fan is no longer available. Has anybody got any suggestions where to get one from, new or secondhand, please? Many thanks in advance

Thanks Waldi I think I`m beginning to understand our PI system now. Is my rationale below correct Waldi ? The PRV must be set to 105psi (7.25bar) and at full revs the engine demands approx 100 L/hr, and the excess flow goes back to the tank via the PRV. So for the 044 pump at 7.25 bar it produces 210 L/hr @ 7 bar, so 110 L/hr goes back to the tank and the pump draws 17.5 Amps. At idle and around town (30-40mph) when the engine hardly demands any fuel, the majority of this 210 L/hr flow is going into the tank. In this idle situation the pump will still be drawing 17.5 Amps.

Redrose Group meeting today at the Cock@budworth, good turnout on a cool day. Carole and I organised at after meeting run to Snugburys Ice Cream Shop to have a look at Paddington Bear. Mike Redrose Group.

as they are for a TR4 makes little odds in my mind as it never had belts anyway

Been for a good run today and the TR is back to normal, no stalling when coming to a stop and tick over is normal. Mike Redrose Group.

The one that connects the inlet manifold with radiator water on a carb car? I’d stab at it being 5/8” unf. Same as the thermo sender.

Can anyone tell me the thread of the blanking plug in the water pump housing, just below the thermostat opposite the temperature sender? Richard.

If the step does get worn it can be taken out and a little bit of weld will replace the worn edge. It does need a radius to allow reverse to be selected Its a safety step to prevent falling into reverse by accident MichaelH