L Series, Hard to start when warm, why??

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saxon.hall.00
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L Series, Hard to start when warm, why??

Post by saxon.hall.00 » Wed Feb 11, 2009 2:20 pm

When my L series gets warm, after driving for a while, or on a hot day, it becomes hard to start, why??
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Gannon
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Post by Gannon » Wed Feb 11, 2009 4:13 pm

MPFI or carby engine?

Are you using E10 fuel?

I has issues with starting with a hot engine with E10 with my carby engine, apparently had something to do with the ethanol evaporating in the fuel bowl
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Matatak
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Post by Matatak » Wed Feb 11, 2009 7:08 pm

trying holding te accelerator down like halfway when starting.

or possibly give it a pump or two before hand.
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steptoe
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Post by steptoe » Thu Feb 12, 2009 8:04 am

either way you'd have an electric fuel pump. If it is carby I wonder if you turn ignition on for a few seconds before trying to start to allow electric fuel pump and the needle and seat work to top up float chamber to counter any fuel evaporating from carby - think it would then evaporate to charcoal cannister. I have seen people attempt to resolve heat affecting fuel lines to carby by insulating the fuel line in various ways

Tasmania get hot ?

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El_Freddo
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Post by El_Freddo » Thu Feb 12, 2009 4:54 pm

Could be due to the car being tuned when the engine was still warming up, this will always cause issues.

I read in the owners manual that the MPFI should have no throttle on cold start, but you should use half throttle for a warm/operational temp start - something I never did and it was fine, when I had the MPFI...

It could also be a dirty carbie.

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erez
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Post by erez » Mon Feb 16, 2009 5:08 am

check the following things:
1. air filter clogged
2. fuel not reaching to the carburetor or to the fuel injectors
3. corroded battery connection especially ground.
4. choke or carby problem.

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someguy
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Post by someguy » Mon Feb 16, 2009 12:28 pm

Matatak wrote:trying holding te accelerator down like halfway when starting.

or possibly give it a pump or two before hand.
Yep thats what I have to do with mine otherwise it almost drains my battery with the time it takes to turn over.

I just open the throttle a little bit and it fires up almost instantly.

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esray71
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Post by esray71 » Wed Feb 18, 2009 9:44 pm

maybe the auto choke...? if it's carby and getting old then it might need an overhaul?

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