Pierburg advice PLEASE!

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Pierburg advice PLEASE!

Postby T3BUS » 30 Jan 2018, 10:47

Got the carb booked in with Bromyard next month but I`m dependant on the van as my daily driver.
The van will start great from cold but as soon as she warms up the problems begin. It intermittently cuts out, coughs and hesitates on acceleration. It seems to run better when the second venture opens when pushed but still not great.
Anyone out there that can offer advice would be much appreciated.
Tried the usual suspects, vacuum hoses etc but to no avail......
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Re: Pierburg advice PLEASE!

Postby itchyfeet » 30 Jan 2018, 12:36

Are you sure your timing is right, you had some posts about that?

Pop the trunking off the carb and pump the throttle, check for a jet of fuel from the accelerator pump down the carb?
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Re: Pierburg advice PLEASE!

Postby T3BUS » 30 Jan 2018, 12:45

Timing issues not fully resolved, hence the Bromyard avenue. I thought that at least this would give me peace of mind as the engine is newly built but I can`t rule out that the carb hasn`t been serviced in 30 yrs. I also thought it would give me a good starting point to resolve the timing problems I have. I`ll re-check the accelerator pump but confess that I haven't measured the supply. Tried new rotar arm, cap and plugs too!
Thanks for your keen eye and advice Itchy, I`ll have another look later today.
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Re: Pierburg advice PLEASE!

Postby T3BUS » 30 Jan 2018, 14:52

Hello again Itchy (and other members reading this post), been out and looked at the carb only to find that the accelerator pump isn`t squirting fuel through. I`ll try and investigate a little further tonight but just a quick thanks meantime.
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Re: Pierburg advice PLEASE!

Postby CovKid » 31 Jan 2018, 13:35

Regasket then. Chances are the acc diaphram is split or one of the channels in the carb is blocked. Easy fix anyway. They usually are easy fixes I find.
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Re: Pierburg advice PLEASE!

Postby waltraud » 10 Feb 2018, 19:38

I rebuilt mine a couple of years ago, not difficult or too time consuming.


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Re: Pierburg advice PLEASE!

Postby itchyfeet » 10 Feb 2018, 19:51

ImageP1060502 by Paul_Barr, on Flickr
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Re: Pierburg advice PLEASE!

Postby Ian and Lins » 12 Feb 2018, 14:03

Worn fuel pump pushrod can cause symptoms like this. Cheap and easy to replace. Bromyard is the brilliant option for a 30 year old carb.
Are we going on anything else?

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