Which engine and Carb you have - Solex to Pierburg swap

Big lumps of metals and spanners. Including servicing and fluids.

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CJH
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Re: Which engine and Carb you have - Solex to Pierburg swap

Post by CJH »

The fast idle function is separate from the choke flap - it operates on a stepped cam near where you were pointing in your first photo. I don't know enough about what happens to the mixture with the choke flap closed to advise, but I guess the fast idle on its own will help.
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Smiffo
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Re: Which engine and Carb you have - Solex to Pierburg swap

Post by Smiffo »

Cheers CJH.

I think I will at least get the coolant in and system bled over the next few days.
Once I'm in that position I can run the van and see how much of an impact there is during cold running periods.

If it is bearable I will leave it at that until I replenish my slush fund.
I have even contemplated selling the remains of our baked beans in the cupboard on ebay...!! :rollin

It's time to take a thinking period on this I reckon. If it really is that bad running the van like this - but still drivable - then I will source another carb, but get it refurbished before I instal it this time.
I can keep this one as a spare, or sell it as `in need of repair` etc.

To think I didn't even look at this one, and it has been sat upstairs for months..!!
( I was working on the theory that I wouldn't know what I was looking at anyway, but this obvious flaw jumped right out at me :roll: )
Live and learn, eh..!?
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“Some people die at 25 years old, and are buried at 75 yrs old” ~ Benjamin Franklin.

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itchyfeet
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Re: Which engine and Carb you have - Solex to Pierburg swap

Post by itchyfeet »

you can just see the plastic choke link with carb off.
Try not to turn it upside down because a) it has petrol inside and b) you can disturb dirt.

bung is 10mm diameter core plug, shaft come out other way now flap is off.

Going to have to remove the top I think , gaskets a fiver or so on ebay.

High revs can be throttle stop adjusted wrong or perhaps the fast idle it working correctly, it is set when you press the throttle cold, flap is set also if the link is not broken.
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Smiffo
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Re: Which engine and Carb you have - Solex to Pierburg swap

Post by Smiffo »

itchyfeet wrote:you can just see the plastic choke link with carb off.
Try not to turn it upside down because a) it has petrol inside and b) you can disturb dirt.

bung is 10mm diameter core plug, shaft come out other way now flap is off.

Going to have to remove the top I think , gaskets a fiver or so on ebay.

High revs can be throttle stop adjusted wrong or perhaps the fast idle it working correctly, it is set when you press the throttle cold, flap is set also if the link is not broken.

That is going to be a `daylight hours` job me thinks...
I need to factor in extra time for the learning curve too, if I am to remove the carb and peer into the abyss..!!

What level of impact will this have on the van running, Itchy?
Will it be usable until I come up with a viable plan?
'89 1.9 DG

“Some people die at 25 years old, and are buried at 75 yrs old” ~ Benjamin Franklin.

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Re: Which engine and Carb you have - Solex to Pierburg swap

Post by itchyfeet »

you you can run it without the choke flap, working, mine was like that when I got it because the plastic link was broken, it didn't cause me any issue except you had to hold the throttle down a bit for a few minuites until it warmed a bit.

I'd be concerned that the choke flap spindle could go walk about with the flap missing, unlikely but possible.

You can't just remove it be because there would be an air leak so you need a flap of a scrap carb and Chris has made the links, get a gasket job done, it's not that hard when you have carb geeks on hand with pics and info. Image

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marlinowner
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Re: Which engine and Carb you have - Solex to Pierburg swap

Post by marlinowner »

I ran my dg van for ages without the choke flap when I took it off to eliminate a stalling problem and then lost it...
Just had to be nursed with the throttle for a minute or two.
1993 SA VW T25/T3 2.5i Microbus/homebrew camper
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itchyfeet
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Re: Which engine and Carb you have - Solex to Pierburg swap

Post by itchyfeet »

I'd be concerned that the choke flap spindle could go walk about with the flap missing, unlikely but possible.


Ignore that, just had a look at a spare carb and the spindle can't come right out with the pancake trunking on so safe to drive.
:ok
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Re: Which engine and Carb you have - Solex to Pierburg swap

Post by Smiffo »

Cheers boys - now I can put the Paracetamol and Whisky back in the cupboard..!! :rofl :rofl

Been pondering the situation and have come up with 4 distinct plans:

Plan A - Run it how it is and gain some experience in how it impacts daily running. If it's usable / acceptable, then I will wait for a bit before addressing it myself. This will involve a new topic thread while I suck the knowledge out the internet..!! :lol:

Plan B - If plan A fails - i.e. if there are other running issues other than choke operation - I will get it sent to a carb rebuilders to give it a `once over.`

Plan C - If the turnaround on the above is too long, I may source another and have that refurbished while I manage with the existing carb here.

Plan D - Return to cupboard to dust off the Paracetamol and Whisky..!! ( That is a joke :lol: )
'89 1.9 DG

“Some people die at 25 years old, and are buried at 75 yrs old” ~ Benjamin Franklin.

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Re: Which engine and Carb you have - Solex to Pierburg swap

Post by itchyfeet »

plan A
summer will soon be here and you won't need tye choke until next winter, you will also need to put some miles on it to find out if it's a good carb or a piece of junk :lol:
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Smiffo
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Re: Which engine and Carb you have - Solex to Pierburg swap

Post by Smiffo »

I'm liking plan A too :ok
'89 1.9 DG

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Re: Which engine and Carb you have - Solex to Pierburg swap

Post by CJH »

In the meantime you can keep an eye out on ebay for a 'spares' carb. The 2E3 was fitted to a lot of cars, but the venturi sizes used in the T25 were unique to the T25 (apart from the 1.8 Carlton), which means you can't just buy an old Golf or Polo carb as a direct replacement. But I wouldn't be surprised to find that a lot of parts, like the choke flap, are interchangeable. The choke flap on my LT 2E3 for instance is the same size as the T25 2E3, even though the primary venturi is a different size.

I posted a link in another thread to a cheap top plate from a Golf 2E3. I don't think it sold - might be worth getting in touch with the seller, as it clearly still had its choke flap. It also still had the plastic link piece, although we're ok for those now :wink:
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Smiffo
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Re: Which engine and Carb you have - Solex to Pierburg swap

Post by Smiffo »

CJH wrote:In the meantime you can keep an eye out on ebay for a 'spares' carb. The 2E3 was fitted to a lot of cars, but the venturi sizes used in the T25 were unique to the T25 (apart from the 1.8 Carlton), which means you can't just buy an old Golf or Polo carb as a direct replacement. But I wouldn't be surprised to find that a lot of parts, like the choke flap, are interchangeable. The choke flap on my LT 2E3 for instance is the same size as the T25 2E3, even though the primary venturi is a different size.

I posted a link in another thread to a cheap top plate from a Golf 2E3. I don't think it sold - might be worth getting in touch with the seller, as it clearly still had its choke flap. It also still had the plastic link piece, although we're ok for those now :wink:

That sounds like an option if the carb otherwise runs OK.
Think I am gong to need to run it for a bit now, and evaluate where I am with it.

If it is only a choke issue, this is definitely an option I will look into.

Cheers CJH
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“Some people die at 25 years old, and are buried at 75 yrs old” ~ Benjamin Franklin.

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Re: Which engine and Carb you have - Solex to Pierburg swap

Post by kevtherev »

The the top part I offered you a million years ago is still available (with flap)

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Re: Which engine and Carb you have - Solex to Pierburg swap

Post by Smiffo »

kevtherev wrote:The the top part I offered you a million years ago is still available (with flap)

Image


E D I T: I think I replied earlier as you were altering your post Kev, so my last reply won't make much sense. I will try again :lol:

If there is no immediate rush - for you to sell it, or me to acquire one - I will run it how I am for a period of time, probably a month or so.
That will let me get a feel for the carb, and make sure everything else is OK when up to temp.
( While letting my misses, bank manager and bank balance take a deep sigh of relief..!! )

If it transpires I need to only address the choke aspect after that period, I will drop you a PM.

If you are looking to offload it quickly, let me know and I may take it anyway. Hope that's OK?

Thanks Kev :ok
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“Some people die at 25 years old, and are buried at 75 yrs old” ~ Benjamin Franklin.

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Re: Which engine and Carb you have - Solex to Pierburg swap

Post by itchyfeet »

kevtherev wrote:The the top part I offered you a million years ago is still available (with flap)

Different person I think...
https://club8090.co.uk/forum/viewtopic.p ... 0&start=30" onclick="window.open(this.href);return false;
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