1.8 Injector threads
Posted
#1627014
(In Topic #223261)
Newbie
Hi all,
I've only just found this website and have created an account so I apologise if I’m not in the right forum. I recently acquired an old 1984 mk1 1.8 cabriolet in white which I've managed to get going. One problem that I've managed to diagnose is that the injectors are full of **** and the seals are knackered. So, I went on eBay and got some replacements, all sounds good so far. As I went to install the new injectors I noticed that the threads are different and won't thread to the fuel lines.
is there a conversion piece or a washer that can bridge the gap and thread into each different thread on both the injector and the fuel line?
've got a brand new set of injectors that are useless to me if not… Any help would be appreciated
I've only just found this website and have created an account so I apologise if I’m not in the right forum. I recently acquired an old 1984 mk1 1.8 cabriolet in white which I've managed to get going. One problem that I've managed to diagnose is that the injectors are full of **** and the seals are knackered. So, I went on eBay and got some replacements, all sounds good so far. As I went to install the new injectors I noticed that the threads are different and won't thread to the fuel lines.
is there a conversion piece or a washer that can bridge the gap and thread into each different thread on both the injector and the fuel line?
've got a brand new set of injectors that are useless to me if not… Any help would be appreciated
Posted
Website Manager
Posted
Newbie
lhasadreams said
Welcome. Two different threads were used.
You can either get the correct ones or get a set of the fuel lines that match your replacement injectors.
Thanks for the welcome, I thought this might be the case does the injector thread size effect the size of the fuel lines at the distributor end? Or is it just an thread change?
Cheers
Posted
Local Hero
Only the injector side changes. I've got a set of hoses. That may fit…new .. that way you get to have new from block to cis unit
Oops scratch that..the hoses I have are for the larger 12mm thread..
https://www.classic-vw.co.uk/mk1-golf-gti-k-jet-fuel-injector-hoses-7pc-set--1121984-4896-p.asp
https://www.classic-vw.co.uk/mk1-golf-gti-k-jet-fuel-injector-hoses-7pc-set-1121984--4912-p.asp
Oops scratch that..the hoses I have are for the larger 12mm thread..
https://www.classic-vw.co.uk/mk1-golf-gti-k-jet-fuel-injector-hoses-7pc-set--1121984-4896-p.asp
https://www.classic-vw.co.uk/mk1-golf-gti-k-jet-fuel-injector-hoses-7pc-set-1121984--4912-p.asp
Last edit: by Kenneth Cartwright
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T25 Diesel…sameoldblueshi£ (currently under resto)
Rocco gt2….1990 secret 2…(currently under resto)
Mk4 99 1.8t indigo blue Gti with 43k miles
Caster 93 clipper JH Green cabby
Snowy 91 GTi White cabby( sat waiting for inspiration)
Myvalver 89 GTi Grey mk2 16v
Yuppy Flu 91 GTi Flash Red Sportline
Golf mk1 owner's club on Spotify
Mk1 golf owners club playlist: Golf mk1 owner's club playlist - YouTube
Posted
Old Timer
Your new injectors look like the air shrouded type, they fit in brass seats, whether they can be fitted in the plastic seats I'm not sure.
I would think you are better off returning them and getting a set to match the originals.
I would think you are better off returning them and getting a set to match the originals.
Posted
Local Hero
did you try cleaning your old ones?
https://www.reflectionsandshadows.com/cis-injector-cleaning/
Berrymans is dabomb
https://www.reflectionsandshadows.com/cis-injector-cleaning/
Berrymans is dabomb
What do Divorces, Great Coffee, and Car Electrics all have in common?
They all start with GOOD Grounds.
Where are my DIY Links?
They all start with GOOD Grounds.
Where are my DIY Links?
Posted
MOTY 2013
the old injectors are non-shrouded so you'll just have to pop the top hats off to fit them to your engine if you decide to keep them and change the lines
the flow rates etc are the same either way no problem using them with new lines if thats what you want to do.
if you do decide to return them look for the mecedes/ferarri brass ones on ebay often can be a little cheaper than original steel type and are non-shrouded coarse thread type so a direct fit to your car
the flow rates etc are the same either way no problem using them with new lines if thats what you want to do.
if you do decide to return them look for the mecedes/ferarri brass ones on ebay often can be a little cheaper than original steel type and are non-shrouded coarse thread type so a direct fit to your car
Hello my name is John and I'm a dub addict.
My wiring diagrams and other documents have moved here:
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You'll need to sign into google/gmail for the link to work! (its free!)
My wiring diagrams and other documents have moved here:
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You'll need to sign into google/gmail for the link to work! (its free!)
Posted
Local Hero
1988 Mk1 Golf GTi Cabriolet 1.8cc DX, K-jet. Daily drive. 317,000 miles and counting
1978 Mk1 Scirocco GLS 1.6cc FR, Webber carb. Weekend toy.
1978 Mk1 Scirocco GLS 1.6cc FR, Webber carb. Weekend toy.
Posted
Old Timer
John,
Do you mean ones like this? https://www.ebay.co.uk/itm/333387853750
Are they like for like on an 83 k-jet? If so, that's a cash saver right there!
Cheers,
J
Do you mean ones like this? https://www.ebay.co.uk/itm/333387853750
Are they like for like on an 83 k-jet? If so, that's a cash saver right there!
Cheers,
J
Posted
MOTY 2013
yep thats the one, same thread, non-shrouded. direct swap
this seller has a 20% off code as well
https://www.ebay.co.uk/itm/333500320540
this seller has a 20% off code as well
https://www.ebay.co.uk/itm/333500320540
Hello my name is John and I'm a dub addict.
My wiring diagrams and other documents have moved here:
VAG Documents & Downloads
You'll need to sign into google/gmail for the link to work! (its free!)
My wiring diagrams and other documents have moved here:
VAG Documents & Downloads
You'll need to sign into google/gmail for the link to work! (its free!)
Posted
Old Timer
rubjonny said
yep thats the one, same thread, non-shrouded. direct swap
this seller has a 20% off code as well
https://www.ebay.co.uk/itm/333500320540
Are there no difference with things like opening pressure?
Posted
MOTY 2013
certainly not enough difference for it to be noticeable, it was a common thing 10 or so years back as they were up for 10 quid or less per injector before it became common knowledge to the VW owners
Hello my name is John and I'm a dub addict.
My wiring diagrams and other documents have moved here:
VAG Documents & Downloads
You'll need to sign into google/gmail for the link to work! (its free!)
My wiring diagrams and other documents have moved here:
VAG Documents & Downloads
You'll need to sign into google/gmail for the link to work! (its free!)
Posted
Old Timer
Cheers John.
the irony of a Ferrari part being cheaper than a Classic VW part is not lost on me!
the irony of a Ferrari part being cheaper than a Classic VW part is not lost on me!
There are too many online users to list.