FV432 help

[rob love]

Update: problem went away......not sure what changed. Got the pack running on the ground today. Have a leaking carb so I'll try one of the other carbs. I'm hoping to get this pack installed before the snow flies, which could be anytime now.

[fv1620]

As regards hose clips to be used in 'B' Series engines, this was covered in EMER POWER N 109.

This EMER was cancelled in 1978 & rewritten & transferred to EMER TEST & MEASUREMENT A 028 Chapter 153 Para 6 which lists these as "generally reliable and should be used on.....equipment fitted with Rolls Royce 'B' Series engines."

H TP 900 by Hunt & Turner
Cheney Connect by Fenter
Jubilee by L Robinson & Co
Security by H Terry & Sons
Impromet by Impromet Ltd

Whether any of those were stainless steel I have no idea.

[maple_leaf_eh]

That name rang something in my head, and I had to go looking. Yes. I remembered right. Good quality automotive hardware.

[rob love]

Thank you for that explanation Clive. I found it odd that the British military would not have used stainless clamps from the get go. Stainless are certainly the standard for the North American military vehicles.

When I look at Jubilee's page, they show 3 grades of hose clamp: mild steel, stainless steel, and a heavy heavy duty stainless steel. The ones on this FV432 pack are of the mild steel variety and hard to salvage after all these years.

Of the 3 packs that came with this project, the pack I was working on appears to be the only one that is going to function in a reasonable amount of time. The second pack is siezed solid from poor storage, and the original pack has very poor compression, ranging from an intermittent compression of zero to 25 psi on the first cylinder to compressions of 50 and a couple 75s on the remainder. Adding oil to the cylinders raised them up about 25psi each. The starter is also very intermittent so when the time does come to try and save this pack, I'll use the starter off the siezed pack.

Alas, snow has now fallen here in Manitoba, so all 3 packs along with the carrier itself have been tucked away for the winter.

I did do an oil change on the one pack that I ran up and used 15W40. But I reado n one website that the oil must be safe for yellow metals. I am used to this warning for transmissions, but not for engines. I think more research will be needed on my part.