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guys i fitted a weber 34ich to the herald timing is as good as i can get it , it starts and runs but yesterday after sitting idling for 10 minutes it stalled and wouldn’t start a mate has suggested fuel starvation /heat soak the carb has no insulator between it and the manifold so have ordered one possibly heat soak boiling away the petrol? trying to start it yesterday it would fire at all but had a few hiccups through the carb. proper head scratching moment. wondering if this is the problem it’s suffering whilst running from as i keep checking the timing etc and it’s pretty close (i.e. not had a dwell meter on it ) but something is still not right plan is to go back and try and start it once cold and see if it fires so does ot sound like fuel evaporation
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v8ian
Posted a lot
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Posts: 3,816
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Beingits a non crossflow head, heat soak could quite easily be an issue, I would suggest you also check the route of fuel line, it could be running too close to the exhaust
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Atmo V8 Power . No slicks , No gas + No bits missing . Doing it in style. Austin A35van, very different------- but still doing it in style, going to be a funmoble
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zeberdee
Club Retro Rides Member
Posts: 987
Club RR Member Number: 2
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Jun 24, 2024 10:30:14 GMT
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It would be worth putting an electric fuel pump on also .
Will prime the system quicker , if it’s evaporated .
Obviously do all the heat shielding & route checks first .
👍
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Jun 24, 2024 12:07:57 GMT
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Beingits a non crossflow head, heat soak could quite easily be an issue, I would suggest you also check the route of fuel line, it could be running too close to the exhaust good point i did reroute the fuel line i’ll look into that 👍 good call
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jamesd1972
Club Retro Rides Member
Posts: 2,904
Club RR Member Number: 40
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Jun 24, 2024 16:10:03 GMT
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seems the petrol pump has given up the ghost despite being a new one was fitted by previous owner
so if it’s been an intermittent fault i wonder if this has been my issue all along 🤷🏻♂️
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looking at that pump it says to mount near the fuel tank think i’d rather have one mounted under the bonnet to make it easier to wire in
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Facet pumps push better than they pull and can only lift 12" or so, so need to be near or below the tank level, they use the fuel to keep the pump cool. That may be why it failed
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Facet pumps push better than they pull and can only lift 12" or so, so need to be near or below the tank level, they use the fuel to keep the pump cool. That may be why it failed the failed one was an original mechanical type!!!
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Jul 10, 2024 19:25:51 GMT
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If you’ve not already bought the fuel pump, consider the Huco pumps. There are two versions. A “pusher”, for mounting near the tank, or a “puller” for mounting up front. In purely pumping terms it’s better to push as it minimises the chance of vapourisation but appreciate it’s more effort to install at the back. www.gowerlee.dircon.co.uk/HUCO.html
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1967 Triumph Vitesse convertible (old friend) 1996 Audi A6 2.5 TDI Avant (still durability testing) 1972 GT6 Mk3 (Restored after loong rest & getting the hang of being a car again)
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Jul 17, 2024 21:09:29 GMT
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If you’ve not already bought the fuel pump, consider the Huco pumps. There are two versions. A “pusher”, for mounting near the tank, or a “puller” for mounting up front. In purely pumping terms it’s better to push as it minimises the chance of vapourisation but appreciate it’s more effort to install at the back. www.gowerlee.dircon.co.uk/HUCO.htmlthis is exactly what i have bought a Huco puller , ordered a ready made loom too trying to keep everything as simple as possible
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