Poor Starting from Cold on twin H4's

Post any technical questions or queries here.
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mk1coopers
1275 Cooper S
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Re: Poor Starting from Cold on twin H4's

Post by mk1coopers »

Nice looking car you've got :D
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sclemow
998 Cooper
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Re: Poor Starting from Cold on twin H4's

Post by sclemow »

Thanks, with a 3.1 diff, no lsd, dunlop R7's and those horrible wet conditions it wasn't very competitive at all. Still I built it as a road car.
This is my usual hillclimb stead ....

http://www.hillclimbandsprint.co.uk/photo.asp?PID=2016

From one end of the results to the other!! :-)
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mk1coopers
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Re: Poor Starting from Cold on twin H4's

Post by mk1coopers »

Looks like that would be slightly quicker than the Mini's :lol:
vegar
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Re: Poor Starting from Cold on twin H4's

Post by vegar »

abri wrote:I had these exact same symptoms on my S a while ago (when it was winter here in the South). I also thought it was maybe the cold and lack of driving....until I took out the year old Champion 9y plugs and put in a used set of NGKs.....fired right up on the first swing!
I bought a mk2 998 a few weeks ago. It was very hard to start, but when warm it started OK. Changed the spark plugs, and now it starts imediatly, even in sub-zero temperatures :)

Image
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sclemow
998 Cooper
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Re: Poor Starting from Cold on twin H4's

Post by sclemow »

Had a go through it today and found I was dropping quite a few volts when turning it over on the starter. I've been through and cleaned and checked all of the high current leads to the starter along with both engine earth straps. I'm now dropping a lot less volts so hopefully that and a fresh set of plugs should sort it out if not it'll be a new solenoid!
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sclemow
998 Cooper
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Re: Poor Starting from Cold on twin H4's

Post by sclemow »

Thoroughly going through the electrical connections and new plugs seems to have improved it a lot.
Cheers Guys.

S
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