Lotus Elan

stromberg carb damper oil loss

PostPost by: bengalcharlie » Thu Sep 15, 2011 3:02 pm

hi,

I experience some oil loss in the carb dampers of my stromberg. I remember that I removed the adjustable needles and fitted a new oil seal but that has not fully cured the problem.
Has anyone managed to cure this problem?
I would like to cure this because now I have to top up the chambers often and if I overfill the car runs too rich, not enough oil and it is running too lean.
cheers
Robin
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PostPost by: Yum-yum » Fri Sep 16, 2011 12:00 am

I had the slow leak in both carbs about 15-20 years ago, fitted the o-ring seals to the needles and they've been fine since. Here is an account of servicing the seals, from memory it sounds correct.
http://www.tr-register.co.uk/forums/ind ... topic=4444

How sure are you that you are filling to the correct level? They can be overfilled but still look proper and when the pistons are lifted some of the oil can be drawn through the clearance around the tube. This would eventually lead to the proper level if the o-ring seal doesn't leak either.
Alex
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PostPost by: bengalcharlie » Fri Sep 16, 2011 2:26 am

Thanks Alex for the information. I will re-install an new set of O-rings and fill up to the correct level and hopefully that will cure it.
cheers
robin

PS would anyone have the correct O-ring dimensions??
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