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Post by mrtempler on Jul 19, 2020 16:46:08 GMT
Was looking forward to going out in the Stag on this nice sunny day. All was well on the drive out parked up at with no issues. The car wasn't hot the Kenlow fan didnt even come on after the engine was switched off. 1 hr later after a pleasant walk and my first ice-cream this year got in the car ready to leave. Did all the normal checks before, checking the oil and making sure there was nothing left under the car (oil or coolant). I must have looked like a 1970's member of Parliament checking for bombs.
Moved out of the car park and drove nicely through the village no issues. Then putting my foot down to go up the hill and it didnt want to know. Backed off and it drove fine but just didnt want to accelerate.
I've looked over the car now im back home after a very nervous drive home. Nothing seem obvious wrong.
Any ideas.
(I only saw this forum while waiting for the wife to come out of the "Lady's" on our walk)
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Post by Kryten on Jul 19, 2020 18:46:49 GMT
Well Jeremy Thorpe drove a Stag, and he was always worried about what was under......
I digress - possibilities are, soft coil breaking down under load, dodgy rotor, dirty inertia switch causing intermittent fuel delivery - take your pick, they are all likely
One I will punt up that happened to me a while back - wiring harness to starter chafed through on bellhousing, lead to coil cold start wire shorting out ignition on acceleration
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Sapphirestag
Full Member
Letting your tyres down at the moment. I was also a target of the Fiefdom controlling the SOC forum
Posts: 129
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Post by Sapphirestag on Jul 19, 2020 19:00:38 GMT
Had a similar issue a few ago on the M3 on my way to a car show. Diagnosed my problem to a failing fuel pump. fitted a new electronic one from LD part and not had an issue since. As stated above though, you need to track down what your fault is first otherwise it could get expensive changing parts you didn't need.
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Post by Kryten on Jul 19, 2020 19:04:25 GMT
You could fit a new carb, or a radiator cowl - fixes all faults eh Sapphire?
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Sapphirestag
Full Member
Letting your tyres down at the moment. I was also a target of the Fiefdom controlling the SOC forum
Posts: 129
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Post by Sapphirestag on Jul 19, 2020 19:30:56 GMT
You could fit a new carb, or a radiator cowl - fixes all faults eh Sapphire? Depends what forum your looking on  |
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phil
New Member
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Post by phil on Jul 20, 2020 5:52:58 GMT
thought a header tank was the elixir of life that fixed all things but it won't help an old vw beetle
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Post by henryboot on Jul 20, 2020 6:38:08 GMT
Add as much bling to your engine bay as possible should do the trick
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Post by grolly on Jul 22, 2020 9:31:04 GMT
Vibrating seats. Doesn’t make run any better, but you and the missus will feel weak knees when you get out and it seems likes it’s been going really fast
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johnp
New Member
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Post by johnp on Jul 22, 2020 10:20:39 GMT
Back to the OP, have you cheked the carby daiphragms mate? A small split starting means they may not lift as much when you put ur foot down giving a weak mixture - ez check, just lift off the tops of the carbys and inspect. Simplez. On the other the forum one of the guys once said "90% of ignition problems are caused by fuel and 90% of fuel problems are caused by ignition" (well summing like that, u get the drift), not sure its true but sounds good 2 me  |
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Post by richardthestag on Jul 22, 2020 11:04:30 GMT
Also check that the 2 carb rods are still connected to the ball joints, my money would be on diaphragms like Johnp suggests
If you can remove the airfilter elbows, run the engine, flick the throttle open and you should see the carb pistons rising inside the throat of the carb. if not then either stuck or diaphragm is torn
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Post by mrtempler on Jul 22, 2020 11:49:06 GMT
Thanks thats another thing to check. I thought I would start with the fuel 1st, starting from the tank and working forwards. The Filter before he lift pump didnt look too bad until i compared it with a new one. So I'll replaced that and possibly blow the fuel line through. If that doesn't cure it I'll see how well the pump flows, as the pump is no spring chicken.
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Post by richardthestag on Jul 22, 2020 13:52:44 GMT
Pump pressure would need to be iro 1.5psi minimum else it will not open the float valves, I didn't get the impression from you that the car felt like it was running out of fuel though
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johnp
New Member
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Post by johnp on Jul 22, 2020 14:10:25 GMT
The pump should deliver around 17 to 18 of your imperial (as opposed to US) gallons an hour, which is around 2 to 2 1/2 pints a minute. Your symptoms don't seem like a fuel pump/supply issue to me - in my experience it usually takes time to recover after you lift off and rather than lack of acceleration on a hill it would pretty much die - BTDT. I would still check the carby diaphragms first, quick, easy and definitive!
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Post by mrtempler on Jul 22, 2020 14:39:54 GMT
Just had a spare couple of mins and had a quick look. I found the oil was very low, almost non, in carb dampeners or dash-pot what ever there called. Do you think this may causes the lack of instant acceleration, well instant relative to a Stag.
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johnp
New Member
Posts: 13
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Post by johnp on Jul 22, 2020 20:21:41 GMT
Possibly, fill 'em and try it! or fit a weber - they don't have dashpots |
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