 Fuel evaporation? |
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| JFG |
 Jun 11 2018, 01:07 PM
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#1
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Senior Member  Group: Members Posts: 686 Joined: 7-April 16 From: Wales Member No.: 19,869 Region Association: None  |
I'm running twin 40's, previously listed and agreed ok. When my engine is hot (thermostat open) the engine struggles and dies.
I thought could be crap in tank / filter but have checked and replaced with no change. As this happens only when hot could this be fuel evaporation due to manifolds being to hot on the head? |
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| SirAndy |
Jun 11 2018, 01:19 PM
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#2
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Resident German Group: Admin Posts: 42,245 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California |
QUOTE(JFG @ Jun 11 2018, 12:07 PM)  As this happens only when hot could this be fuel evaporation due to manifolds being to hot on the head? Yes, it could be. Are you running the phenolic (sp?) spacers/insulators between the intake manifolds and the heads? They are important in keeping the manifolds (and carbs) cooler. Also a good idea to utilize the return line to the tank to keep the gasoline moving. A lot of people plug it when they convert to carbs but moving fuel is less likely to boil in the float bowls. (IMG:style_emoticons/default/popcorn[1].gif) |
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Posts in this topic
JFG Fuel evaporation? Jun 11 2018, 01:07 PM
JFG I have the manifold fitted to head with only a gas... Jun 11 2018, 01:34 PM
SirAndy
I have the manifold fitted to head with only a ga... Jun 11 2018, 02:09 PM SirAndy They look like this and go between the head and th... Jun 11 2018, 02:25 PM JFG after having properly driven the car the other day... Aug 31 2018, 11:52 AM falcor75 Also how old is your coil? it was discussed in ano... Aug 31 2018, 12:28 PM JFG the coil was new with the distributor about a year... Aug 31 2018, 01:08 PM 914forme It seems to me that your jetting might be a bit of... Sep 1 2018, 11:14 AM |
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