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Type 3 Carbs flood after engine stop

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wombatventures Wolfsburg Wizard

680 posts · joined Feb 2013 ·

#1031290
Over the past few months I've had issues with the 72 Notch.
Mostly fuel related.
This week I put the tank back in after cleaning it and the filter in the outlet.
Last night I put in a new fuel pump.
This morning when I got it started and running, as soon as I switched the ignition off fuel started trickling into the carbs then flowing which flooded them.
I've had an issue with starting the motor after it has sat for a few minutes after switching off for a while now, so it seems like it must have been happening with both previous fuel pumps as well.
The Gregorys manual mentions a shut off valve in the fuel pump or carb. As this is not the original dismantlable pump that would have come with the car would I have to put a fuel shutoff valve in the line from the pump to the carbs? Or is there a problem with the carbs?

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DUBS BY THE RIVER 2021 Morgan SA - Sept 18-19 2021

Currently suffering from delusions of sanity!

adlbeetle66 Under the car.........again!

1,476 posts · joined Aug 2014 ·

#1031291
There is two different pump rods you can get - a long one and a short one.
There could be a possible problem if you're getting too much pressure with the long one?
I'm hoping that makes some sense to you..
Cheers
Denver

wombatventures Wolfsburg Wizard

680 posts · joined Feb 2013 ·

#1031299
Would that be the "electro-magnetic pilot jet shut off valve"?
If there is no connection to them both would that be the problem? Guess I'll have to check that they are working.
Any tips on how to test them
DUBS BY THE RIVER 2021 Morgan SA - Sept 18-19 2021

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vw54 Administrator Always Waiting 4 Friday

16,723 posts · joined Aug 2002 ·

#1031300
turn ignition on and pull the lead on and off you will here the solenoid clicking in n out

but that don't have anything to do with fuel flow


is that china pump you have installed might not have the check valve in that sitting properly
I read it on FACEBOOK so it must be true


http://forums.aussieveedubbers.com/viewtopic.php?tid=91278&page=1#pid848630


http://forums.aussieveedubbers.com/viewtopic.php?tid=63561&page=1#pid624099


http://forums.aussieveedubbers.com/viewtopic.php?tid=4832&page=1#pid452603


http://forums.aussieveedubbers.com/viewtopic.php?tid=60650&page=1#pid574409

wombatventures Wolfsburg Wizard

680 posts · joined Feb 2013 ·

#1031304
Solenoids are working.
Pump box is labelled Brazillian. A Brosol. Does this type have a check valve?
DUBS BY THE RIVER 2021 Morgan SA - Sept 18-19 2021

Currently suffering from delusions of sanity!

vw54 Administrator Always Waiting 4 Friday

16,723 posts · joined Aug 2002 ·

#1031307
they all have a check valve to stop flow

are you parking he car flat and level
I read it on FACEBOOK so it must be true


http://forums.aussieveedubbers.com/viewtopic.php?tid=91278&page=1#pid848630


http://forums.aussieveedubbers.com/viewtopic.php?tid=63561&page=1#pid624099


http://forums.aussieveedubbers.com/viewtopic.php?tid=4832&page=1#pid452603


http://forums.aussieveedubbers.com/viewtopic.php?tid=60650&page=1#pid574409

wombatventures Wolfsburg Wizard

680 posts · joined Feb 2013 ·

#1031311
It's up on jack stands at the moment but is level.
Fuel even runs in with the line off the pump and a bung in the end. Tried the old worn pump and it does the same.
Will probably decide to give the carbs a good overhaul before long anyway. Will leave it for now.
Just needs a lot of cranking to clear the fuel before it starts.
DUBS BY THE RIVER 2021 Morgan SA - Sept 18-19 2021

Currently suffering from delusions of sanity!

vw54 Administrator Always Waiting 4 Friday

16,723 posts · joined Aug 2002 ·

#1031313
check the gasket spacer under the needle n seat valve or add extra spacer this will lower the float level and ensure the seat stop the fuel flow

take the fuel inlet line to carbies of the pump and fill with fuel after you have adjusted the float level and hold up above the carby level high so gravity allows fuel flow to carbies this will determine if the are leaking or not

if not leaking then something wrong with the pump
I read it on FACEBOOK so it must be true


http://forums.aussieveedubbers.com/viewtopic.php?tid=91278&page=1#pid848630


http://forums.aussieveedubbers.com/viewtopic.php?tid=63561&page=1#pid624099


http://forums.aussieveedubbers.com/viewtopic.php?tid=4832&page=1#pid452603


http://forums.aussieveedubbers.com/viewtopic.php?tid=60650&page=1#pid574409

wombatventures Wolfsburg Wizard

680 posts · joined Feb 2013 ·

#1031315
Cool. Will follow that up. Thanks
DUBS BY THE RIVER 2021 Morgan SA - Sept 18-19 2021

Currently suffering from delusions of sanity!

Morts Casual Dubber

46 posts · joined Jun 2007 ·

#1031322
I have had a few fuel related issues with a few cars of late. Have you only idled the car or have you driven it?

A friend and I were working on my ghia 36hp and it idled beautifully for a short time before flooding. Checked the float level and that was okay so worked out we were getting too much fuel pressure, added another gasket to the fuel pump and hey presto!

My daughters '73 fastback has also had a lot of fuel issues in that it is using a lot of fuel and has a horrible fuel smell but no obvious leaking. Pulled the carbs off and where the two faces meet was noticeably warped and buckled so have acquired two replacement carbs and now getting them re-kitted before trying again.

PS: I am also looking for the rubber spilltray and outer seal that goes where the fuel filler and fuel flap is for her car and the outer rubber seal. Boris has the spill tray but no seal and ISP West has neither - any leads?

wombatventures Wolfsburg Wizard

680 posts · joined Feb 2013 ·

#1031328
Got the old fuel pump out last night, the one that was on the car when we got it, that I changed early in the year. I'm going to give that one a try today before I pull the carbs off.
I have tried taking the outlet pipe from the fuel pump off as soon as I turned the motor off to see if the fuel still runs into the carbs with no fuel pump pressure. It does still run in.
DUBS BY THE RIVER 2021 Morgan SA - Sept 18-19 2021

Currently suffering from delusions of sanity!

vw54 Administrator Always Waiting 4 Friday

16,723 posts · joined Aug 2002 ·

#1031341
Ok so if fuel still running from pump the check valve in the pump is stuffed
I read it on FACEBOOK so it must be true


http://forums.aussieveedubbers.com/viewtopic.php?tid=91278&page=1#pid848630


http://forums.aussieveedubbers.com/viewtopic.php?tid=63561&page=1#pid624099


http://forums.aussieveedubbers.com/viewtopic.php?tid=4832&page=1#pid452603


http://forums.aussieveedubbers.com/viewtopic.php?tid=60650&page=1#pid574409

Morts Casual Dubber

46 posts · joined Jun 2007 ·

#1031348
vw54 wrote:Try VVDS
Thanks, but that is what I meant by Boris!

wombatventures Wolfsburg Wizard

680 posts · joined Feb 2013 ·

#1031508
Pulled both carbs out Yesterday. Crap in right carb needle and seat (see photo). Nothing visible in left carb but cleaned out anyway. Haven't altered anything settings wise but will adjust once I get a couple of rebuild kits.

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DUBS BY THE RIVER 2021 Morgan SA - Sept 18-19 2021

Currently suffering from delusions of sanity!

vw54 Administrator Always Waiting 4 Friday

16,723 posts · joined Aug 2002 ·

#1031510
That will do it every time

Looks like you need an in line filter before the pump
I read it on FACEBOOK so it must be true


http://forums.aussieveedubbers.com/viewtopic.php?tid=91278&page=1#pid848630


http://forums.aussieveedubbers.com/viewtopic.php?tid=63561&page=1#pid624099


http://forums.aussieveedubbers.com/viewtopic.php?tid=4832&page=1#pid452603


http://forums.aussieveedubbers.com/viewtopic.php?tid=60650&page=1#pid574409

wombatventures Wolfsburg Wizard

680 posts · joined Feb 2013 ·

#1031555
Its got an in line filter after the tank, tucked up in the space near the auto trans. There is also the mesh filter in the tank. I'm tipping this has got in the line when the fuel pump has been disconnected to prime the line when the old pump was not working properly, or when the fuel pump has been changed.
Have to put some fuel in the car to see if the flooding has stopped. Will get on to that tomorrow.
DUBS BY THE RIVER 2021 Morgan SA - Sept 18-19 2021

Currently suffering from delusions of sanity!