Carrier fuel pipes

[Tom Millward]

Does anyone know the length for a Mk1 (fuel changeover valve is near the oil cooler outlet)?

[Michael R.]

Originally Posted by Tom Millward

Does anyone know the length for a Mk1 (fuel changeover valve is near the oil cooler outlet)?

Slight length variations and fitting styles can be observed between the MK-I and MK-I* flexible fuel hose assemblies running from the fuel tank pickup fitting to the three way fuel valve (tank selector switch)

British MK-I 9/40 dated flexible fuel hose measures +- 19-1/4”.
Canadian MK-I* 1942 dated flexible fuel hose measures +- 19-3/4”.
Canadian MK-I* 1943 dated flexible fuel hose measures +- 20”.

Canadian made ‘three-way’ fuel valves are fitted with three adapters, CTL 3485B.
There are at least three versions of this valve: early Canadian MK-I* carriers used a British supplied valve, followed by a Canadian made valve C01UC 106011 ‘B’ series that attached the fuel hose ‘straight’ on, followed by the ‘C’ series that attached the fuel hose at an angle, allowing the fuel hose to be routed without fowling against the transmission top hat.
These valves are not interchangeable with the ‘two-way’ valve found on the C31UCW NO-2 MK-II* carrier.

Each flexible fuel hose was supported by a ‘Clip - fuel pipe and fittings, CTL 7212. The clip was fastened to the transmission using the existing transmission top bolt(s).

[Tom Millward]

Thanks for all the informationmstion. I can now get some pipes made up at my local hose place. The info on the valve was also very valuable, I will go and check which valve I have.

Cheeers

[Michael R.]

Originally Posted by Tom Millward

Thanks for all the informationmstion. I can now get some pipes made up at my local hose place. The info on the valve was also very valuable, I will go and check which valve I have.

Cheeers

The British Chilwell Illustrated parts manual shows two versions of the valve, identified as a ‘tap’.
Their (Chilwell) illustrated parts manual may be more instructive than the Canadian FUC-03 as some dimensions may be given along with part numbers.

[Michael R.]

Continuing with the last page from the British Chilwell parts manual: the details for the part numbers 54, 55, and 56 of this illustration show sizes for nipple, nut, tubing as well as length for that portion of rigid fuel line from the valve/tap to the fuel pump.

[Tom Millward]

Thank you, that answered my next questioned well; which was ‘what’s the screw size for the fuel pick up?’. From the parts list they are 2BA x 3/8”.

Is that the Fuel tank strap setup for a UK Carrier, as it seems different to the images I have seen of canadian tanks?

[Michael R.]

Originally Posted by Tom Millward

(paraphrased) . . . Is that the Fuel tank strap setup for a UK Carrier, as it seems different to the images I have seen of canadian tanks?

The Canadian produced MK-I* fuel tank straps use a different tensioning turnbuckle to that shown in the British Chilwell manual, while the Canadian MK-II* fuel tank strap uses a similar system as the British one. The change in turnbuckles means there is a change in the length of the straps. Other than historical accuracy, a complete strap assembly could be interchangeable between the MK-I* and MK-II* carrier, as are the felt pads. The MK-II tensioning turnbuckle is easier to work with.

See pages 200 and 201 of FUC03 for illustrations of the strap assemblies, a portion of the MK-I* strap assembly illustration reproduced below . . .

In the ‘Parts’ section of the forum you can find a posting from a UK based MLU member who makes some replacement carrier parts, including the difficult to source Canadian style MK-I* fuel tank turnbuckles.

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