Lotus Elan

Weber cold start unit and idle

PostPost by: Concrete-crusher » Sat Nov 24, 2018 9:19 am

I have noticed the stop lug that’s cast into the cold start unit is missing on one of my Weber carbs , does it make any difference ?

The engine runs really well , and I never use the choke , but when it’s upto temperature the idle increases from around 800rpm to 1000rpm and I can’t work out why

Steve
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PostPost by: Chrispy » Sat Nov 24, 2018 11:58 pm

Mine does the same thing, and I'm missing the lug on my front weber. It's a bit cranky when cold too, needs a few prods to keep it running on cold start. Very happy once it's warmed up.
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PostPost by: richardcox_lotus » Sun Nov 25, 2018 10:36 am

Mine is similar. I put it down to o things like carb mounting o rings warming up.

Regards
Richard
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PostPost by: MarkDa » Thu Nov 29, 2018 8:32 pm

I too get a faster tickover when the engine's fully warm.
Now I know others are the same I'll stop thinking I might do something about it!
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PostPost by: billwill » Sun Dec 02, 2018 4:56 pm

Concrete-crusher wrote:I have noticed the stop lug that’s cast into the cold start unit is missing on one of my Weber carbs , does it make any difference ?

The engine runs really well , and I never use the choke , but when it’s upto temperature the idle increases from around 800rpm to 1000rpm and I can’t work out why

Steve



Probably merely that your engine oil is less sticky when it is warm.
Bill Williams

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