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Curburettor problems on 1.5

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Will not fire up. Timing and dizzy is set correct.

Hi.

I bought a Mk1 with a 1.5 engine.
The timing belt was completely off and the dizzy was wrong.

I adjusted the timing and dizzy and it still will not run. There is spark and fuel is coming in to the carburettor.
I poured some fuel in to the carburettor and the engine ran for about 5 seconds.

Question 1:
The mark on the cam pulley. Is i supposed to line up with the top of the valve cover or between the valve cover and the head? Mine is on the op of the cover now.

Question 2:
How do I go about troubleshooting the carburettor? Is there a diy or howto online that I can read?

Best regards
Eirik from Norway.

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Hello my name is John and I'm a dub addict.



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rubjonny said

Thanks.
Looks like I have the timing set correctly.
I am not sure what carb I have. I tried to look for any markings as I know that the carb for the 1.3L has text on it. (My buddy has a Mk1 1.3L) :)Do you know where is is supposed to be marked?

EDIT: Though I should mention that the spark plugs are totally dry when I remove them after cranking for a while.

Last edit: by dubmission

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i only know about the 2e2 im afraid, if it looks similar to the link with bits all over then its a 2e2, otherwise it could be a weber or a solex or some other pierburg

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rubjonny said

i only know about the 2e2 im afraid, if it looks similar to the link with bits all over then its a 2e2, otherwise it could be a weber or a solex or some other pierburg
Not quite sure where I am suppose to start. Never had a car with a carb before. As I wrote in my edit post the plugs are completely dry when I take them out after cranking.

Also forgot to mention. The engine started yesteday when I sprayed "start gass" info the carb. (Ofcourse died after a few seconds)

Last edit: by dubmission

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alrighty start at the back of the car, check inside the fuel tank for debris and the age old rotten filler neck. check the fuel lines from back to front looking for corrosion and perrished rubber lines (I'd just replace all the rubber fuel pipes on the car) then look at the fuel filter, be sure to check inside it from the inlet side for dirt as they can look spotless on the outside yet be totally bunged up with crud where you cant see. look at the fuel pump and reservoir, make sure they are in good nick and not filled with dirt or jellified petrol :)

the fuel pump is purely mechanical so very simple, if in doubt replace it should be dirt cheap from local german parts shop

Hello my name is John and I'm a dub addict.



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rubjonny said

alrighty start at the back of the car, check inside the fuel tank for debris and the age old rotten filler neck. check the fuel lines from back to front looking for corrosion and perrished rubber lines (I'd just replace all the rubber fuel pipes on the car) then look at the fuel filter, be sure to check inside it from the inlet side for dirt as they can look spotless on the outside yet be totally bunged up with crud where you cant see. look at the fuel pump and reservoir, make sure they are in good nick and not filled with dirt or jellified petrol :)

the fuel pump is purely mechanical so very simple, if in doubt replace it should be dirt cheap from local german parts shop

Ok, I will have a look. Although I disconnected the fuel hose that goes in to the carb and it is spitting fuel when I crank it on the starter. Maybe the pressure is to low?

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is it a good strong pulse of fuel when cranking? carbs could be the carb needs stripping and cleaning out, maybe floats jammed or something?

Hello my name is John and I'm a dub addict.



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rubjonny said

is it a good strong pulse of fuel when cranking? carbs could be the carb needs stripping and cleaning out, maybe floats jammed or something?

I think so even if I do not know what a weak puls looks like. Sorry for my noobness but I am learning and loving it! The carbs should probably be pulled appart and cleaned but I am not sure if I would  trust myself to be able to put it back together ;)

As a sidenote: What inlet manifold could be used on my 1.5L engine to convert it to EFI using mega squirt or similar?

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you would need to fit a mk1 gti head as the injectors are fitted into the back of the head itself rather than the inlet :)

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rubjonny said

you would need to fit a mk1 gti head as the injectors are fitted into the back of the head itself rather than the inlet :)

That would explain why I couldn't find the injectors in any photos. Would the 8v gti head be a straight swap? Still going to take the carb in to pieces. Do you know of any web sites that sell refurbishing kits? 

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1.6 gti head is a straight swap yep, 1.8 are dfferent

try webcon.co.uk

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rubjonny said

1.6 gti head is a straight swap yep, 1.8 are dfferent

try webcon.co.uk

Wow, after searching the internet for many hours I could not find any place that could confirm that the 1,6 gti head was a straight swap. Thank. You have been more then helpful. I will have the gti head solution as a backup should I manage to "destroy" the carb.

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rubjonny said

1.6 gti head is a straight swap yep, 1.8 are dfferent

try webcon.co.uk

Whoa there Jonny! this is not like you!   :) The 1.6 GTI head is a Heron head and therefore has no combustion chambers. You cannot fit a 1.6 GTI head to 1.5


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addicted said

rubjonny said

1.6 gti head is a straight swap yep, 1.8 are dfferent

try webcon.co.uk
Whoa there Jonny! this is not like you!   :)The 1.6 GTI head is a Heron head and therefore has no combustion chambers. You cannot fit a 1.6 GTI head to 1.5



Ohh, that's a bummer. Is there anything I can fit from a newer mk3 polo to easily convert my 1.5 til EFI? Saying I go the megasquirt route?

Edit: There are tons of Polo mk3's around here in norway. Not many Golf mk1 any more.

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The 1.3 engine is very different I'm afraid. Does your existing carb have one single choke or is it the twin choke type?

Somebody asked this on the Facebook page this week. My 1.5 GL had a 34 PICT Solex like fitted to 1500 air cooled beatles so was able to buy a brand new EMPI 34 PICT and fitted that!

My carb was like this:

http://www.volksforum.com/forum/showthread.php?t=104219

So I fitted one of these:

http://www.amazon.com/Empi-34-Pict-3-Volkswagen-Carburetor/dp/B007KPFDKA

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I thought the 1.5 head had no combustion chambers? or at least if not, that the 1.6 head would reduce the cc to a nice gti like figure?

Last edit: by rubjonny


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rubjonny said

I thought the 1.5 head had no combustion chambers?

hmmm I did the head gasket on mine and don't remember it being a heron head.. I certainly skimmed it with the valves in place..

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my thoughts were it was either flat, or at least if not that the 1.6 head would reduce the cc to a nice gti like figure?

the HG is the same part so it should physically fit, just a case of a) will the pistons hit (assume not as the edges of the head chamber usually protrude into cylinder) and b) what will the compression be after…

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Does the 1.5 have its coolant inlet between 1 & 2 like early 1.6 or between 3 & 4 like later 1.6 and 1.8?

I sold mine years ago so cannot remember..

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