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Post by paddymk2 on Jun 7, 2022 13:33:41 GMT
ImageHi Guys Im finally getting things back together again I was cleaning up parts and I noticed that the magnet in the pressure regulator had come loose. I took the magnet out as I didnt want it moving around and thought I could put a stronger magnet on the outside of the glass bowl. I'm not sure if these are OEM parts or an aftermarket goodie but if it aid with preventing vapour lock that cant be bad. Thoughts?
Best regards Paddy
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Post by Penguin45 on Jun 7, 2022 17:18:30 GMT
Sorry, Paddy - never seen anything like it!
C.
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Post by paddymk2 on Jun 8, 2022 3:18:24 GMT
Thanks Chris,
That explains why there nothing about it in the Leyland manual.
I'll put it back in for now (sans the magnet).
At least it didn't say all the guff, "by the power of science and molecules..."
One thing you may be able to help with is -
When I was fiddling about at fitting the carby back on I took off the big throttle return spring and promptly forgot how/where it goes (and the pics I took didn't show it.)
Would you have a pic or diagram?
Paddy
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Post by dave1800 on Jun 8, 2022 4:42:24 GMT
In the UK back in the 60s and early 70s there were adverts for pressure regulators such as this but as far as I am aware they were not fitted as original equipment. In my youth I fitted an adjustable version to my Frogeye Sprite carefully backing off the pressure until there was no sign of a misfire as per the instructions to give me "massive improvements in fuel economy". I fooled myself in believing the claims as I had spent hard earned cash on the device. All went well until I drove the car on a long journey with two passengers and luggage (quite a feat in a Sprite!)and it spluttered going up a long steep hill. A quick dive under the bonnet in the dark and it was removed for ever, fortunately I had not burned any valves and the engine didn't overheat.
I think the bottom line is that if you keep the float chamber and valve clean and in good condition the fuel pumps as fitted to the (UK) crabs should not force fuel past them.
As far as vapour lock is concerned finding the cause is a minefield with plenty of theories and suggestions floating around. It can be an issue on a hot day especially on a non-cross flow engine such as the B series where the exhaust manifold heats the carburettor, fuel pump and fuel lines. This is especially noticeable with a hot engine after the car is parked for a few minutes. I can't see how your pressure regulator would improve that but its filtering function may keep the feed to the jet feed pipe free of contaminants and may help.
David
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Post by paddymk2 on Jun 8, 2022 14:20:49 GMT
The closer you look at anything the more sceptical you become.
From killing 99.9% of Covid to Diesel-gate.
I'm not sure how the thing is supposed to work, but it looks complicated enough to do something.
Its not as bad as the "water purifiers" which can be used to improve economy of diesel lorry engines.
Still I think I can hear Queen coming through on the radio, "its a kinda magic..."
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Post by Penguin45 on Jun 8, 2022 17:52:30 GMT
I'd be tempted to remove it and just make sure you've got a fuel filter in the line. Throttle return spring:  Throttle springs by Penguin 45, on Flickr  Throttle springs by Penguin 45, on Flickr The left hand spring shouldn't be there, but the linkage won't quite drop home without it. HTH. C. |
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Post by paddymk2 on Jun 9, 2022 7:58:51 GMT
Thanks Chris, They're really clear pics! Good point - I don't see a fuel filter and filters work. (I wonder if a Green LED would do the job? Paddy |
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Post by Penguin45 on Jun 9, 2022 17:36:19 GMT
Brilliant. Snake oil at its finest.
C.
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