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Author: Subject: Engineers? - Fuel Restrictor
daveb666

posted on 10/7/13 at 06:27 AM Reply With Quote
Engineers? - Fuel Restrictor

The return on my swirl pot is currently an 8mm fuel pipe; I ideally need a restrictor (say 1-2mm) in the pipe to stop my lift pump working overtime.

Is there anywhere online I can buy one of these off the shelf, or are there any backyard engineers on here that want to knock me one up for some beer money?

Thanks

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matt_claydon

posted on 10/7/13 at 06:37 AM Reply With Quote
Use about 1cm from the plain shank part of an M8 bolt (pref 8.8 or lower grade) and just drill a hole in the centre.
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scudderfish

posted on 10/7/13 at 06:38 AM Reply With Quote
I put a MIG nozzle in a bit of 8mm copper tube and crimped it in place.

Regards,
Dave

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britishtrident

posted on 10/7/13 at 06:56 AM Reply With Quote
Another way is tp stick an 8mm to 4mm hose reducer in the pipe, loads on ebay, another solution is insert a short length of brake pipe with one end flared.
If you go for a very small bore restrictor make sure there is a filter somewhere upstream.





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dhutch

posted on 10/7/13 at 07:45 AM Reply With Quote
quote:
Originally posted by daveb666are there any backyard engineers on here that want to knock me one up for some beer money?

Some people would cringe at this use of the term 'engineer'.


Daniel

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daveb666

posted on 10/7/13 at 08:50 AM Reply With Quote
quote:
Originally posted by matt_claydon
Use about 1cm from the plain shank part of an M8 bolt (pref 8.8 or lower grade) and just drill a hole in the centre.


Fair point - probably the best idea. I'll do that.

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big_wasa

posted on 10/7/13 at 09:21 AM Reply With Quote
I am happy to make you something up when I get back this weekend.

Let me know if you get it sorted in the mean time.

Cheers

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Litemoth

posted on 10/7/13 at 10:03 AM Reply With Quote
Maybe I'm misunderstanding the application but I would have thought it's a pressure regulator you need not a flow restrictor (aka 'orifice plate' in engineering nomelnclature).
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