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 Lucky Phil
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| posted on July 26th, 2013 at 01:24 PM |
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Euromax carby
I bought a new Euromax carby 4 years ago and if I knew then what I know now......
I know they have a bad reputation, but i'm stuck with it now.
I have adjusted the float level (with a couple of thick washers), fitted an SVDA Pertronix distributor, Fitted the original aircleaner and reinstated
the warm air inlet system.
(EDIT 28/07/13) I have also replaced the genie extractors with a stock muffler. I miss the sound but don't miss the flatspots!
It seems to be running good now, however, it has a slight fluff at idle that I am sure would be cured with a slightly leaner idle mixture.
The mixture screw bottoms out before it can lean it out enough to drop the revs.
I am sure the shoulder where the thread ends and the needle starts is basing out and stopping the needle from going in far enough.
Probably due to the drilling not going deep enough.
I tried using a needle from another carby but it was worse. It had a radius instead of a square shoulder which I believes backs up my theory
I have considered trying to drill it deeper, but the thought of that gives me the heebie jeebies! Too much chance of stuffing it up.
My next thought is to get the smallest needle file I can find and filing the shoulder down a bit.
I can't see it doing any real harm. Bugger of a job though.
Has anyone had any experience with this?
I look forward to any comments on this topic.
Phil.
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68AutoBug
A.k.a.: Lee Noonan
Aircooled Master
Beetle Restorer - Experience over 138% - YIKES --
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| posted on July 26th, 2013 at 11:21 PM |
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Have never heard or the Euromax carby
I presume it was made for VWs???
where was it made??
I used to run a Brasillian weber which was made to replace the 34 PICT 3 solex
I also remember the REECE FISH ? carby in the UK advertised in UK magazines in the 70s.. was popular on Beetles.. over there.
You will hear bad things about many carburetors.. lol
best of Luck
LEE
- [size=4]Helping keep Air Cooled VWs on the road - location: SCONE in the Upper Hunter Valley - Northern NSW 320 kms NNW of SYDNEY--- [/size]
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grumble
Son of Jim - Creator of Good
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| posted on July 27th, 2013 at 09:07 AM |
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If the mixture screw bottoms and it still runs I suggest the idle bleed for the idle jet may be blocked,a crack internally allowing fuel into the
manifold. I have a mixture screw repair kit for the 34pict carbs if you want to try that give me a pm. Cheers Les
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Lucky Phil
Wolfsburg Wizard
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| posted on July 28th, 2013 at 11:41 AM |
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Thanks for the responses, guys.
I should have mentioned that it is a 34PICT-3 carby. As originally fitted to 1600 Twinport engines.
Euromax is the brand name, Lee.
I have heard tell that Brosol is better.
Thanks for the offer of the repair kit, Les.
I didn't know such a thing existed.
I don't think this is the problem, though.
The larger idle air screw alters the idle speed okay.
I can die down the idle with the mixture screw okay when I turn it out.
If I assume this screw works like most normal mixture screws, that means I am getting plenty of fuel.
It's when I turn the mixture screw to lean it out that it doesn't go in enough.
It's possible that I may have this barse ackwards, though. VW's are like that!
As for damage, I am the only one to work on this carby, and I know I haven't screwed it in too tight.
Doennt mean it wasn't a manufacturing defect, Though.
Also, in my experience, a damaged seat feels different. It has no sense of basing out.
It just feels wishy washy and slowly gets tighter.
This one simply stops dead.
I'm off to the man cave now to have a reread of the bibles, and consult the wisdom of the VW prophets (well, it is Sunday after all!)
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Lucky Phil
Wolfsburg Wizard
Posts: 480
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Registered: August 1st, 2010
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| posted on August 5th, 2013 at 07:37 PM |
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Sorted!
The mixture screw is called a volume screw.
It controls air, not fuel, to the idle circuit.
Screw it in, reduce air, increase fuel, richer mixture.
Bass ackward!!!
Only on a VW!
So by not being able to drop the Idle when screwing it in means it's not getting too much fuel. (oh my aching head!)
I suspect it has a smaller pilot jet due to being a late model carby.
Seems to be running okay now.
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