Car just won't stop !!!

sarahjaneking · Post by **sarahjaneking** » Thu Aug 26, 2010 6:32 pm

I'm going for my fuel stop solenoid as electrics etc turn off and a definite change in sound when i turn off the ignition and remove the key but the good ol engine keeps on running, stopped her by stalling her tonight but would rather not do that too often

Does that sound about right and if so does anybody know the correct part number for a new one

thanks

sarah x

ken newbold · Post by **ken newbold** » Thu Aug 26, 2010 7:26 pm

Depends which fuel pump you have, Bosch or Lucas

But you can still stop the engine from under the bonnet by pull back the lever on the fuel pump, it's a bit of a pain I know, but it's better than stalling it in gear

sarahjaneking · Post by **sarahjaneking** » Thu Aug 26, 2010 7:42 pm

Fairly certain it's Bosch, stalling in gear isn't nearly as easy as it sounds either

electrokid · Post by **electrokid** » Thu Aug 26, 2010 11:12 pm

Not that I've needed to do it myself - I'd be inclined to give the pump a few taps in the area of the stop solenoid - if it's sticky that might free it - and if it does then at least that could confirm it even though it's pretty certain to be that anyway.

And then go for the stop lever as Ken suggested.

prm · Post by **prm** » Fri Aug 27, 2010 1:45 pm

As electrokid mentioned, a few light taps on the stop solenoid body may work.

The stop valve is energised open with ignition on, and no doubt a small piece of crub/ rubber tubing/ O ring seal has jammed the valeve open.
Might be worthwhile removing and cleaning. Check the pump body socket.

Not sure with the exact layout on Bosch pumps.

Disconnect the valve electrical supply, with ignition off and engine running, to ensure there’s no maintained 12 volt supply keeping the valve open when the ignition is off.

Regards

sarahjaneking · Post by **sarahjaneking** » Fri Aug 27, 2010 7:01 pm

thanks everyone, just got back with my 2nd BX

so will try tomorrow and let you know how i get on

sarah x

sarahjaneking · Post by **sarahjaneking** » Sun Aug 29, 2010 4:22 pm

Just taken the solenoid out to have a look, never seen one before

threaded bottom with an o-ring round it and a spring and plunger inside, which seem to move freely, i'm assuming it works by pulling the plunger inside to open and then pushes it down to stop any advice always gratefully received - anyone know how i tell if it is a bosch or lucas pump? oh and where is the stop handle?

hope that makes some sort of sense

sarah x

ritmo · Post by **ritmo** » Sun Aug 29, 2010 4:53 pm

Hi Sarah

Thanks for your advise with my BX (Betty) problems. I hope I can be of help to you now! Am I right that you also use alternative fuels? Well, I use biodiesel in Betty, and it has eaten through the seal on the end of the solenoid piston meaning I can no longer stop her. The solenoid works fine, but there is a hole in the middle of the rubber seal (wasn't easy to spot initially) that's causing the problems.

Now, don't do what I did which was to attempt to make your own seal. It didn't work and I've just discovered that it was the cause of my power loss issues. My have been obstructing the fuel line.

Maybe we could work together in sourcing a replacement seal? I haven't found one. You can buy a whole new stop valve from GSF for 30 quid: part number 188PC0080 or 188PC0090 depending of bosch or lucas. But I want to use my working solenoid and replace the seal.

Anyway, hope that helps.

Jake

electrokid · Post by **electrokid** » Sun Aug 29, 2010 6:14 pm

Yer tiz...

http://www.frenchcarforum.co.uk/forum/v ... a911e8da18

sarahjaneking · Post by **sarahjaneking** » Sun Aug 29, 2010 6:32 pm

A seal on the end??????? that'll be the problem then Jake, no sign of a seal

Thanks for the pics electrokid, I now not only know where the lever is (and that it needs a dab or 3 of wd40) but also that I have a Lucas pump

Off to GSF on tuesday for a new solenoid methinks - why is everywhere shut over the bank holiday weekend, surely that's when we are all out working on our cars

ritmo · Post by **ritmo** » Sun Aug 29, 2010 8:46 pm

This isn't the same stop solenoid, but you can clearly see the plug seal on the far right hand side. That's what's failed on mine. It must be there somewhere!

You can check if the solenoid is functioning by crossing a 12v source between the body and the threaded electrical connector. Mine was working fine.

electrokid · Post by **electrokid** » Mon Aug 30, 2010 10:47 am

but also that I have a Lucas pump

The rubber used in the seals in the Lucas pump is not compatible with biofuels - anything other than diesel will cause the pump to fail - the figure usually bandied about is '6 months'.

If you want to carry on using any proportion of biofuels then your best bet is to forget replacing the stop solenoid and find a secondhand Bosch pump and have that fitted. It's worth taking the rad out for better access - and while it's stripped down to that extent it's a good idea to replace cambelt / tensioner / waterpump and flush the coolant system as well before replacing with a decent quantity of antifreeze.

Not good news - sorry.

Post by **Defender110** » Mon Aug 30, 2010 11:08 am

Not sure if this will help here but the guys on a Mitsibushi forum I'm on when running on bio type fuels replace their fuel seals with Viton Rubber as per the link

http://simplybearings.co.uk/shop/index. ... th=19_4462

sarahjaneking · Post by **sarahjaneking** » Wed Sep 01, 2010 1:08 pm

Well I bought a new stop solenoid and it doesn't appear to work, when you say i can cross a 12v source to check it what is the easiest way to do this?? (I know i'm stupid but the kids go back tomorrow so hopefully my brain will start functioning again then LOL)

also old stop solenoid had a spring down the middle of the plunger, new one seems to have a spring across the top of the inside where the plunger goes, if that makes sense????? is that right?

thanks again guys, at least I only have to pop the bonnet open to stop it now (old solenoid back in) way way more cool than stalling

electrokid · Post by **electrokid** » Wed Sep 01, 2010 2:16 pm

Refering to Ritmo's pic - the casing - the bit with the screw thead and the hex section marked 12v is ground / 0v / chassis - take that to the negative of the battery with a piece of spare wire.

With another piece of spare wire connect the positive of the battery to the far left hand side on the pic - where you'd normally attach the wire in the car.

When you do that - the plunger on the right hand side of the pic should be pulled smartly back into the body of the solenoid - if it does that then it's working ok.

Try not to touch any part of the solenoid while you are doing this - it's an inductance - a coil - and similar to the coil that causes a spark in those strange petrol engine thingys there will be a high voltage for an instant across the solenoid.