Help! My classic car keeps stalling.
ฝัง
- เผยแพร่เมื่อ 27 ม.ค. 2024
- How to prevent stalling due to vapour lock in a classic vehicle. The example here is a Morris Minor, but the same techniques and solutions can be applied to almost any car of the period.
The following links are for your convenience. I make no endorsement and I receive no payment.
Exhaust Wrap
www.carbuilder.com/uk/exhaust...
Heat Shield Sleeving
www.ebay.co.uk/itm/375088276440
HIFF44 Carb Spacer
www.minispares.com/product/cl... - ยานยนต์และพาหนะ
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A truly excellent video. Well filmed, edited and narrated. On such a lovely, clean Moggy too. Epic.
Glad you enjoyed it
What a beautifully filmed, well made, instructional video. Reminded me of old school. NIce to have an old motor where you can actually work on it.
Glad you enjoyed it
That was certainly a comprehensive belt & braces approach! I had exactly the same problem in my Series 2 but it was literally just the fuel vapourising in the fuel line (badly routed right past the manifold imo). I just used the reflective wrap technique on that section of fuel line and never had the problem recur in the last couple of years since I did it.
Great to hear!
SUGGESTION (From experience). Worth thinking about is - BMC 'A' and 'B' series engines are supplied with fuel by an electric fuel pump (Moggie has it in the engine compartment (on engine bulkhead; see video), Oxford / Cambridge type cars have it in the boot). Because of wear and tear, (like the distributor) the points in the diaphragm-type pump wear and can cause intermittent fuel starvation similar to vapour-lock. You can hear the pump clicking as it builds-up pressure when first switching the ignition on. If you don't then tapping the body with a screwdriver handle should get it working again. You used to be able to buy replacement contacts but it would be by specialist outlets now.
twigged
This is very true and your advice is good. However it wasn’t the case here. Highly tuned A Series engines with LCB exhausts invariably run hot and vapor lock.
My 1960 Minor used to do that at junctions, red lights, etc., not due to vapour lock, but because it was knackered! New cars do it by design!
It happens
Awesome like a moving picture Haynes manual except without the oily fingerprints.
Thanks! Much appreciated.
This was also a problem with the similar Triumph 4-cylinder engines as used on the Dolomite, Herald and Spitfire. One reason is that modern unleaded petrol burns hotter than the old 4-star. Another fix is a heat shield between the inlet and exhaust manifolds. Ceramic coating of the exhaust manifold is also another option.
Very true 👍
It can also help to fit a small bore fuel return line off the SU float chamber back the tank, although this is a lot of work it helped on my twin SU Triumph engine to deal with the alcohol it was never originally intended to when sitting in traffic
Too much work for me.
Great video
Thanks!
Probably wouldn't have been a problem with the std mowog cast manifold.
True.
Hopefully your cure works, however a more substantial heat shield could be created, using exhaust/catalytic converter heat shield from a scrap car. Easy to cut with snips and bend to shape. Should the pipe from the fuel pump to the carburettor not be flexible?
It worked perfectly thanks. The copper pipe is from the tank to the pump. The pipe from the pump to the carb is the braided one and it is flexible.
Did you use a gasket when installing the base plate?
Yes
I don't know if your petrol in the UK has ethanol in it like many parts of the USA and here in South Africa. The vapour lock became so bad that i went to the electric pump route.
We can still get decent petrol, but it’s more expensive
@jodiethemorrisminortraveller we don't have a choice. Electric pump cured my vapor lock issues in my old vw. I live in a hot country that made it worse. Classic guys in parts of the use are battling too.
👍
Malheureusement, l'ordonnance fédérale d'interdiction du contrôle des gaz d'échappement (BABVVO) interdira bientôt la conduite de moteurs à combustion en public en dehors des trajets domicile-travail et des transports prouvés, le contrôle des gaz d'échappement deviendra alors une infraction au code de la route.
Vraiment? C'est très mauvais. 😢
le nouvelle lois Schlabouve en France et Babvvo en Allemagne, en Suisse la Heschlavve@@jodiethemorrisminortraveller
☹️
Why didn’t you change the route of the fuel line ?
Without moving the fuel pump it would only be possible to gain an inch or so. And I would probably still have needed the insulation. Anyway, it worked perfectly. The problem is completely gone.
what heat shield off and part no
It’s off a Morris Marina. Sorry, can’t find a part number.
Make your own.
👍
FUEL starvation due heat , obstruction in fuel flow .
Exactly
Now my 1997 Toyota Hilux is carburated but don't have vapour locking problems because it has a cross flow cylinder head
Cool 👍
Put an electric fan in front of the radiator =no over heating that causes vaporising of the fuel ( fan blows towards the engine)
Thanks for your response
Just stumbled onto your
Vlog , the TARDIS sound
caught me by surprise....
I know very little about cars sorry , just to say
keep it forever , don't
buy any modern car
they are rubbish &
break down & costs
thousands to fix , &
it's only gonna get
worse with electronic
Dash & other stuff
My other mode of
transport is a police box
( I wish ) 🤣🤣🤣🤣🤣🧳🧳🧳🧳🧳🧳🧳🧳
Thanks for watching 👍