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Dellorto pump jets
cliftyhanger - 21/5/08 at 05:33 AM

Just took my car up Prescott Hillclimb for a non-timed event, but really noticed the car bogging/fluffing when stomping on the accelerator at high RPM, 4000+

The car is fitted with an 1800 zetec/2000cams. Twin dellorto 40's which are set pretty well, just the high rpm stomping thats a problem.

So....anybody any suggestions for pump jets on a Zetec??
All advice appreciated, I know I should buy a few sets of jets and play, but they aint cheap!
Or I did think about the old skool approach, the soldering iron and a set of drills, but cannot find any info on how jet sizes relate to drill sizes. That would be a great help.

TIA
Clive


cliftyhanger - 21/5/08 at 06:07 AM

Had a thought, the jets are 40's, so should be about right.
Wondering if it could be the pump calibration. seen a measuring thingy on fleabay,
http://cgi.ebay.co.uk/Carburettor-Pump-test-tool-Dellorto-DHLA-Weber-DCOE_W0QQitemZ290212200972QQihZ019QQcategoryZ72205QQrdZ1QQssPageNameZWD1VQQcmdZVi ewItemQQ_trksidZp1638Q2em118Q2el1247
looks like a but of rubber tube and a measuring cylinder may do the same??


sprouts-car - 21/5/08 at 08:39 AM

Linky


cliftyhanger - 21/5/08 at 04:32 PM

Thats the link.
£30+£6pp to use once is a tad rich really.
Wonder if I can beg/borrow steal?

Will study the chance of a bodgeup.