Revs stick high - Pierburg issue?

[itchyfeet]

I'm thinking I might dismantle the one I have here and get a good `feel` for the Pierburg.
Gonna end up stripping them whatever I think

Yes while you wait fix the choke flap on old one. I have some pics if needed.

[jamesakers]

Sounds exactly like the issue I had earlier in the year: /viewtopic.php?f=37&t=153564&start=45#p8148904

As itchy says it'll be the locking lever / U bracket.

[Smiffo]

Thanks all.

I will check the U bracket when I can get back there.
Also spoke to CJH who still has some of the manufactured replacement plastic bits that break - he's send ing some through for me ( top man ).

Combined with the two Brickwerks refurb kits which are also on their way, I should be able to rectify the issues on both carbs now, to give me a good one on the van and a good spare.

Progress updates to follow when it all turns up.!!

[Smiffo]

Had a mosey tonight at the carb with no choke function.
Aside from the flap being missing, this was broke:



Then there was the fact there was no gasket between the two halves...:



Plenty of debris inside the float chamber too

Just waiting on some parts through the post to make a start.

[itchyfeet]

Are you saying that carb was running with no gasket

Don't forget to buy carb cleaner

[Smiffo]

Had a think after this post - I reckon it did have one - I think garage has opened it up already to see how it works with the aim of fixing the high revs on the replacement...

Reason I think that?
Idle cut off valve is missing on this one, plus there were only 3 screws holding the two halves together when I seperated them.
Looking at old pics I posted when I originally fitted it, there were definitely 4 screws back last winter ( and I didn't remove them )

Either way, I have a plan of action now.

I have a question though:

Seeing that the faulty choke aspect is on the top half, and the fault on the second carb is with the bottom half, can I just use the two good halves to make a working carb?

This one is of the `H` variety, not sure what the other one is yet though. If different, will mixing the two halves of two different carb models give me an issue?

[itchyfeet]

cut and shut

yeh why not

[Smiffo]

I will do that to get me up and running though first, then use CJH bits to get a working spare me thinks

[Smiffo]

And can I mix and match `H` carb halves with earlier ones?
( Not sure what type is on the van yet )

[itchyfeet]

jets are tiny bit different but are all in top so can't see why not but worth a good visual check for differences in the bottom half.

[Smiffo]

And my hot post lady just brought me an early XMAS present from Brickwerks..!!

[kevtherev]

I have plenty pierburg spares here, both clean halves and various gubbins

[Smiffo]

Cheers Kev.

Do you have any choke flaps and spindles?
The one here has no flap, and the spindle has been bent - plus it has stripped threads in it.

I suspect PO tried to bend the spindle first to stop it flapping around after the cam broke.

I have managed to straighten it but with the threads stripped there is little point.
If you only have those items as part of a half of a carb, then I may consider buying that if needed.
( Mine is H series carb )

[kevtherev]

I'll take a look when I get home on monday

[Smiffo]