Lack of power

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mark1967
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Joined: 17 May 2009, 01:03
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Location: Laid under van

Lack of power

Post by mark1967 »

Van has a DF engine fitted.Instead of the PICT carb it has a Pierburg.Upto about a quarter revs it pulls ok.Anything more than a quarter revs makes no difference to the speed :( Changed plugs, plug leads,dizzy cap and rotor.Coil resistances are within spec checked all fuel filters and can`t find any vacuum leaks.Need to check the timing next but can`t find anything other than settings/instructions for DG and DH.All the guides I`ve seen mention different timing marks on double crank pulleys but mine only has the one mark (only one pulley too)Anyone got a how to guide ? Its no fun being overtaken by bays on hills :shock: :oops:
Thanks
Mark
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Fritz
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Location: Ormskirk, Lancashire

Re: Lack of power

Post by Fritz »

Mark, make sure (on the pierburg ) that the second choke spindle and diapragm isn't either siezed up or inoperative in any way,,,,,,,,,,,,,you may have to remove the carb to check this function fully.

Regards


Fritz,,,,,,

PS, find a timing light and check vacuum advance is working as it should< or simply have a huff and puff on the vac tube, coz goosed vac units on the dizzy will lead to similar poor performance levels...
One day you will find me,,
Driving in my Camper,
With a Surf and Paisley wrap on both sides....
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mark1967
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Posts: 30
Joined: 17 May 2009, 01:03
80-90 Mem No: 0
Location: Laid under van

Re: Lack of power

Post by mark1967 »

Cheers Fritz,not thought about 2nd choke barrel not working :oops: .That would make sense given the way it drives.Got a strobe gun in garage cupboard somewhere too.Thanks mate :ok
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