Its already got a 'leccy SU-type pump off an MGB. Seemed to feed the weber/1293 fine
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| Author: | leyland brother [ Thu Aug 31, 2006 12:12 pm ] |
| Post subject: | Hot Engine |
When the engine is running a little hotter than normal (ie: in heavy traffic) when i go to take off from stand still it seems as the fuel is vaporising before it actually gets to the cylinders. I say this because when i attempt to move off, the car almost wants to stall, but if i rev it higher and ride it out no probs... The car is fine when cold or normal operating temp. Can fuel evaporate from heat in the manifold??? Thanks people. |
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| Author: | Stuwey [ Thu Aug 31, 2006 12:15 pm ] |
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Always did that when i had it, too... |
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| Author: | cush [ Thu Aug 31, 2006 12:38 pm ] |
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running lean makes the car run hot... check the mixture... |
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| Author: | kazjim [ Thu Aug 31, 2006 1:10 pm ] |
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Vapour lock Electric Fuel pump No More Vapour Lock. J |
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| Author: | Stuwey [ Thu Aug 31, 2006 1:18 pm ] |
| Post subject: | |
Its already got a 'leccy SU-type pump off an MGB. Seemed to feed the weber/1293 fine
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| Author: | leyland brother [ Thu Aug 31, 2006 1:23 pm ] |
| Post subject: | |
I replaced the spark plugs on the weekend, haven't driven it in traffic yet, but the old N9YX's were black on the tips and threads... I thought that indicated rich mixtures
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| Author: | Stuwey [ Thu Aug 31, 2006 1:45 pm ] |
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Its was dyno'd about a month before you got it. I tried NGK plugs, but they fouled up pretty quick. Useless for stop/start driving. The ol' Champion N9Y's worked much better. Never had a problem with them. What plugs are you running now? |
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| Author: | czerial [ Thu Aug 31, 2006 1:47 pm ] |
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i think its the NGK 6BPES that is the best for a mini they dont foul up like the cooler plug does |
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| Author: | leyland brother [ Thu Aug 31, 2006 2:06 pm ] |
| Post subject: | |
BP7ES from memory... I asked for a colder plug than the equivalent of the N9Y's which is the the 6ES like Chris said. |
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| Author: | Stuwey [ Thu Aug 31, 2006 2:07 pm ] |
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Could be the problem. Cooler plugs will foul easier... |
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| Author: | leyland brother [ Thu Aug 31, 2006 2:09 pm ] |
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I've only just put these plugs in... I haven't driven the Mini since Saturday night when i had the problem. Plugs went in Sunday. |
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| Author: | czerial [ Thu Aug 31, 2006 4:41 pm ] |
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the 6ers are a hotter plug i beleive |
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| Author: | leyland brother [ Thu Aug 31, 2006 6:00 pm ] |
| Post subject: | |
czerial wrote: the 6ers are a hotter plug i beleive
Yes, thats why i bought the 7ES's, i was told they were one colder than the 6's... Still... The above mentioned problem happend before i changed the plugs, basically, the same components that were in the car when i bought it. |
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| Author: | drmini in aust [ Thu Aug 31, 2006 7:48 pm ] |
| Post subject: | |
leyland brother wrote: czerial wrote: the 6ers are a hotter plug i beleive Yes, thats why i bought the 7ES's, i was told they were one colder than the 6's... Still... The above mentioned problem happend before i changed the plugs, basically, the same components that were in the car when i bought it. If it was fouling with 6ES you need a hotter plug, not colder. Try BP5ES. 
Note NGK's plug numbers are arse-about compared to Champion (or Bosch). Hotter Champion N11YC = NGK BP5ES = Bosch W8DC N9YC = BP6ES = W7DC N6YC = BP7ES = W6DC Colder |
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| Author: | aaron [ Thu Aug 31, 2006 7:56 pm ] |
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if your running unleaded and even more so premium unleaded you will need to run a hotter plug, BP5ES, for the simple fact that unleaded petrols have a high combustion point to the old stuff. The higher the Ron the higher the flash point. Hotter plug is needed to get a hot enough spark to ignite all the fuel in the cylinder, otherwise you get black sooty plugs. Cheers Aaron |
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