Fuel pump regulator

Where did you get with this relay thing @snotty? It's next on my list while I await delivery of my fuel cut off solenoid. Did you find a good source of those 555 timer based relays? Thanks.

 

Ok, I found the relay at VWHeritage for a measly £41.95

 

We bought them from GSF. Snotty paid about £30. I used a voucher code and paid £20

 

Ok, you got me! It's a trick challenge isn't it?
How do I make the GSF webpage show me that part, so I can get a price? I type the part number in and the darn site keeps asking me what car it's for tried a normally aspirated porker, says

 

Bugger sorry, think it was VeeWee.

 

Seems to have disappeared

 

I can't find it either

 

Assuming I can find one. How did you mount it? Did you find a socket to plug it into?

 

Yes indeed

 

Nice job, Mark! What sort of socket does it use, a standard one?

 

Thank you. Yes bog standard - same as the ones next to it.

 

Great thanks, I go look in my parts stash, see what I have.

 

GSF's search function is truly useless. Almost as bad as VWH's.

I got mine from Euro Car Parts after Googling the part number. It was in a dusty box with (I think) an '89 build date on it . I did then splash out on the VWH one as a spare, but it's not really necessary. If it packs up, you can frig a socket for a standard 30A relay.

They're both essentially the same circuit - a 555 working as a one-shot, driving the relay, with the mono retriggered by ignition pulses. They're both made by KAE. The older one has a DIP 555 and leaded components, the more recent one is surface mount. I'll use the older one: KAE 3.300.300. The other variants have a built-in fuse/holder for the pump supply.

Can get something like a Ripart relay base from fleaBay: you'll need one that has provision for the full pin-out, so not one for a stock 4-terminal relay. They're pretty cheap. If you get slot-together Ripart kit, you can get a matching fuse holder that attaches to the relay base.

 

Oops. Yes it was Eurocarparts not Veewee. Senility set in. Just checked and they don't have it now though

 

Something like this?

https://www.ebay.co.uk/itm/180739111864

 

Plenty of fuses there .

No - the relay base appears to be one for four terminals. You need one that can accommodate the additional pin. They are available.

This Samba pic shows the pinout. The relays seem to be in short supply (apart from VWH). Plenty in the US, it seems.

https://www.thesamba.com/vw/forum/album_page.php?pic_id=707733

 

Ah, ok, think I see it now.

More like this?

https://www.ebay.co.uk/itm/180739111864

 

No, keep trying . You need something that accommodates the thin "31" terminal, as in Samba pic.

 

Whoops that was the same link, cut and paste error between keyboard and seat.

https://www.ebay.co.uk/itm/331517013408

 

That looks like the one. Does appear to be made by Ripart, so you should be able to find a fuse holder that slots in next to it