Re: bedford SV100 fuel tank

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Post by Phil Bradshaw » Club admin » Wed Feb 22, 2017 9:58 pm
Joined: Sun Sep 02, 2012 7:15 pm
Posts: 3746
tajmall wrote:Thanks Phil, as far as I know the Glow plugs are working ok but will get my brother to check it on Fri when he comes. In the mean time is here anything else I can try before I go to the expense of having the pump removed ?
Leave the injection pump to last. Most times the pump is fine anyway unless it springs a leak.
With regards to the cold start that has been removed what do I need to put it all together again ? As you can see on the photo there is what looks like a thick cable at the pump end which has snapped off. At the dashboard side there is what looks like a choke cable which is not connected.
I am currently hoping to borrow a heavy duty battery until I can afford a new one.
You may not need the cold start advance if smoke on start up and during warm up isn't bad, which often is the case with GB being that much milder than parts of Europe during the winter.

The correct cable is similar to the throttle cable in construction and operation; finding a replacement may take some time with being fitted to CF2 models only and often being broken or missing. I've not seen a working one for a long time now.
I also read on another thread about solenoid shut off. I don't think it's a problem as the fuel is reaching the pump but do not hear a click when I turn the ignition, which suggests it may not be working properly.
The click as the solenoid plunger moves isn't that loud. Best check is to see how far fuel is ejected from the pump bleed screw hole when the screw is removed and the engine is cranked on the starter, which also confirms that the rubber end of the solenoid plunger is unseating from the fuel port as it should. You can leave that to when the system is being vented: removing the screw is a dodge to quickly vent the pump from 'dry' once the filter is vented.
The hardest thing I'm trying to get my head around is why the van started when I bought it then died half way home never to start again :-) I was originally hoping it was just a clogged fuel filter as had the same symptoms on a car I used to have. Having said that I am stubborn and have decided that even if it takes me a long time I am determined to get it going - it's just gonna be a bigger project than I originally thought !!!
Diesel engines can die for any number of reasons leading to poor fuel delivery and, or, air and water ingress. Clan Bodger interventions during the life of a CF come top of the list ...
  • What is real is not the external form but the idea, the essence of things. Constantin Brâncuși

Re: bedford SV100 fuel tank

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Post by Phil Bradshaw » Club admin » Wed Feb 22, 2017 10:43 pm
Joined: Sun Sep 02, 2012 7:15 pm
Posts: 3746
tajmall wrote:I think that actually that is good news as it is the new primer which has delayed getting things done. I ordered it from David Bailey Classics on ebay and it was advertised as the right one for this engine but when it came it doesn't have arrows on to show inlet/outlet and was big and touching housing. The original is almost the same as the diagram but seems to be opposite way round so will refit old one.
It's a relief to see that you have the original hand primer and the regulator valve. There is a work-around to compensate for the missing valve in after-market hand primers (fit a check valve close to the inlet port, which also introduces more to go wrong ...) but the regulator valve is peculiar to the Bosch VE pump when fitted vertically as on the CF and can be very hard to find in any condition.

The only reason for replacing the hand primer is when there is fuel leakage from beneath the press button when the primer is used (i.e. split or torn primer diaphragm, not repairable). The earlier Bosch filter head with separate hand primer slapped on the inlet port then may be a better option with being a bit easier to find because it is used on several engines of similar vintage as the GM 21D and 20D engines that preceded the 23D engine.

Before I forget: make sure that the hand primer is properly bolted to the engine before driving the van; with only the one bolt in as in your previous photos it will shake off sooner rather than later.
  • What is real is not the external form but the idea, the essence of things. Constantin Brâncuși

Re: bedford SV100 fuel tank

Post by tajmall » Subscribing Member » Fri Mar 10, 2017 7:40 pm
Joined: Mon Dec 12, 2016 5:32 pm
Posts: 23
Hi just to let you know we finally got to work on the motorhome again today, put the old primer back on and new 115Ah battery and it started up straight away - thank you very much for your help - no doubt I'll be starting a new thread soon as we find out what other problems there are :D
Tracey

Re: bedford SV100 fuel tank

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Post by Phil Bradshaw » Club admin » Sat Mar 11, 2017 5:51 pm
Joined: Sun Sep 02, 2012 7:15 pm
Posts: 3746
Well done. :thumb:
  • What is real is not the external form but the idea, the essence of things. Constantin Brâncuși

Re: bedford SV100 fuel tank

Post by tajmall » Subscribing Member » Tue Jan 16, 2018 4:53 pm
Joined: Mon Dec 12, 2016 5:32 pm
Posts: 23
Haven't had a chance to get on here for a while and don't know if this is the right place to post this but wanted to let you know I managed to find a guy who specialises in old diesels minutes from my house (after struggling for a year lol) and my van was MOT'd in December :D Advisories were:

Front wheel bearing slight play nearside
Shock absorber light misting of oil offside
Slight corrosion underneath
Exhaust system deterioration

The main problem I'd had with the fuel turned out to be corrosion of the solenoid on the lift pump but they managed to restore it.

Absolutely over the moon and just wanted to say a big thank you to Phil for all of his help.

Still lots to do but he's running and at least now I have a mechanic who can sort it ;)

Booked in for a service in 2 weeks time then we'll take it from there!!!

Re: bedford SV100 fuel tank

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Post by Phil Bradshaw » Club admin » Wed Jan 17, 2018 12:31 am
Joined: Sun Sep 02, 2012 7:15 pm
Posts: 3746
Feedback always is worth having. :thumb:
  • What is real is not the external form but the idea, the essence of things. Constantin Brâncuși

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