Poor Running - Is It Coil/ht Leads?

[Guest Ian Marr]

It is a facet electric pump and the regulator can be wound back. Not seen obvious leaks.

 

I am out at fire service drill night this evening, but should be able to get an hour in to roughly set up the electric pump and maybe wind back the regulator.

 

Looking to order a service kit for the carb, but might not be able to get one til Thursday - at £23 from fastroadcars might just order one anyway.

 

Thanks for the help peeps ...

[Guest Ian Marr]

Just tried to fit the pump, but not able to switch on as fuel leaking from the brass union on the carb side as it threads into the pump ... Bugger.

 

Is ptfe tape petrol safe? I am guessing not.

 

She is putting up a good fight!

 

Drill night then maybe an hour before bed

[Guest lotusPaul]

Ian. Can you post up pictures off what your doing and also your ignition system

 

PTFE tape...hmmmm I'm not so sure for a long term fix but maybe ok for a short fix,but why is it leaking?

[Guest Ian Marr]

Just back from drill so no garage time tonight.

Got some Hylomar Blue from a heating engineer at the station which is okay for fuels. If it is not the tappered thread, then it must be a faulty pump. Will have a go before work in the morning. Might have a go with camera skills tomorrow.

[Guest 2b cruising]

if the pipe is not fixed solid to the thread, the sealing point is not the threads but an olive.

If the union is not going in dead straight this will not seal the olive into the inner casing.

Sealants should never be nessasary on petrol joints.

It would only take a minute piece to block jets or hold your float valve open.

If you do photoes, can you post one of the leaking joint while it is still together?

Edited April 27, 2016 by 2b cruising

[Guest Ian Marr]

A work at the moment, but no olive on the union ... Just a tapered thread on a brass hose connector about 1.5" long which screws into the body of the pump. All part of the kit.

[Guest mcramsay]

Ptfe on the tapered thread is fine, as long as you leave the first few threads of the fitting without tape, that stops you getting any tape in the fuel line, also make sure you wrap the tape on clockwise, otherwise it will undo when you screw in the fitting. Hylomar is no good for threads

[Guest Barry Knowles]

hi ian. got a good fuel pump. let me know if you need one.

[Guest Ian Marr]

Cheers Barry, but don't think pump is the problem. Just back from the barn and hooked up the new electric pump ... The Hylomar Blue worked on the threads -dry as a bone. Got the engine running, but still not right. Difficult to test properly as could not get it outside and quite keen on not killing myself. However, I am fairly confident it is not the mechanical fuel pump or the regulator/filter as no change taking them out of the equation. On the advice of a local mechanic mate, sprayed some brake cleaner in the carb and ran it. Did it twice, looks cleaner, but again not much change!

 

Added some pictures of the set up

 

 

 

 

 

 

Edited April 27, 2016 by Ian Marr

[Guest Ian Marr]

Haha ... Hope you all have your upside down heads on!

[Guest Ian Marr]

[Guest red7]

Ian, here's a wild guess. I had a similar problem. Turned out to be contaminated fuel. Problem was cured by filling the tank with fresh fuel. Just a thought.

[Guest 2b cruising]

Good point red7.

Also Ian, is the intake hose squashed at the front when the bonnet is shut.

If so that would lead to a very rich running situation.

[Guest lotusPaul]

I think we should start again with the basics.

Have you checked your ignition timing and spark quality at the plug?

Have you set plug gaps.

 

If you had an old type dizzy I'd be sugesting points and condenser. But you have an ignition module right?? Have you got a spare you could swap it for to test if its failing under load?

[Guest Ian Marr]

Car has been run to empty and full again to replace fuel. The engine did come back to normal for a while, but is a bit on and off anyway.

The pictures show the hose work to bypass the mechanical pump and the filter/ regulator and another hose to take the remaining fuel in th e mechanical pump away. In normal use the hoses are nowhere near the bonnet.

Have not checked the timing, but have checked spark plug gaps.

Dizzy is a Hall Effect module, but don't have a spare.