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Coolant pipe replacement

Posted: 26 Jul 2022, 09:54
by Williambrown
My van is in the process of having its coolant pipes replaced, specifically the long metal ones running front to rear, which have rusted through. The work is being done for a fee by a friend with (some) assistance from me. I have stainless steel replacement pipes from JK which appear to match my van model and year The van is a 1981 model (LHD Austrian import, formerly a minibus, with a 1.6 turbo diesel engine). The pipes are the earlier 32mm ones. However, there seems to be an unnecessary kink in the (engine) end of one pipe which takes it too close to the fuel filter. The original does not have this. I will (attempt to) attach a picture of thr rear section of the old and new pairs of pipes to illustrate. The pair on the bottom right are the ones that don't seem to match. I have, of course queried this with JK too but am waiting for a response. I don't  know if the pipe is simply the wrong one. Any insight would be appreciated. Thanks, John.Image

Re: Coolant pipe replacement

Posted: 27 Jul 2022, 06:35
by maxstu
Send them back....besides l thought they came with joining sections for ease of fitting?

https://brickwerks.co.uk/product/coolan ... arly-32mm/

Re: Coolant pipe replacement

Posted: 27 Jul 2022, 14:34
by Williambrown
Thanks, yes, I think I'm minded to do that. I've had a response from JK but nothing very helpful so far. It's such a laborious process when they will only deal with email messages rather than speaking on the telephone. Cheers.

Re: Coolant pipe replacement

Posted: 27 Jul 2022, 14:45
by maxstu
Each pipe should be in two parts with a joining connector. Are they full length pipes? JK list 32mm pipes in four pieces? What do you have? :?

Re: Coolant pipe replacement

Posted: 27 Jul 2022, 16:17
by jrt
Hmm. Mine came from JK the other year, as others have said they come in two sections. Is that photo one pipe (in two)?
What was the description when you ordered them?
1983 wbx dg
Image

Re: Coolant pipe replacement

Posted: 28 Jul 2022, 16:35
by Williambrown
Hello. Thanks for the replies. Sorry but my picture may be misleading. We cut the original pipes to aid removal. The front parts of the replacements are ok. The new ones do come in two sections, as you say, but I only photographed the rear sections (new alongside originals) to show where one original differs from the replacement.
JK have suggested returning them for a refund. 
However, I have checked the replacements on Brickwerks' website (replacements for early steel pipes, 32mm petrol and diesel models) and those too look very similar to the JK ones, ie, both with a bend at the end rather than one bent and one not, as with my originals.
My van has a replacement engine which is a 1.6 turbo diesel from a 1986 Golf but I wouldn't imagine this was the problem as I believe that's a fairly standard swap and the original coolant pipes fitted fine afterwards. I know Brickwerks are knowledgeable and their parts good quality so I'm puzzled as to the best course of action now. Any comments much appreciated! John

Re: Coolant pipe replacement

Posted: 28 Jul 2022, 18:12
by jrt
Thanks for clearing that up, I though they looked a bit stumpy 😂.
Hopefully someone will be able to help.
How much out is it.Have you tried rotating it when sliding it through? I know when I did mine I had a nightmare getting them positioned correctly.
David.

Re: Coolant pipe replacement

Posted: 28 Jul 2022, 19:05
by Williambrown
Sorry, forgot to say JK product description was  stainless steel coolant pipes, feed & return, 32mm, T25 1979 to '85, diesel and petrol models. I know the engine is from a 1986 Golf, but the old coolant pipes fitted to it no problem, so I'm a bit baffled now. John

Re: Coolant pipe replacement

Posted: 28 Jul 2022, 19:35
by Cecil
Was your van originally air cooled  (1981 !)and has a diesel filter been added in the wrong place. We’re your pipes made up to suit rather than to the normal shape.

E D I T
   I see t25 diesel (water cooled)introduced in February 1981.
 

Re: Coolant pipe replacement

Posted: 28 Jul 2022, 20:35
by jrt
Post up a photo of the problem area.
As above how close is it to fitting, have you twisted the pipes or is it miles out?
David.

Re: Coolant pipe replacement

Posted: 28 Jul 2022, 22:39
by Williambrown
Hello Cecil. Thanks for the suggestions. The van is entirely standard apart from the engine swap (and conversion from minibus to camper, years ago). The pipes are the originals - that's certainly 41 years' worth of rust on them! I believe the water-cooled diesel was not an official UK import in 1981 but I do know its history. It was bought by a friend's brother in the mid-nineties, in Austria, where he lives. My friend then bought it from his brother and imported it to the UK around 1997. He owned it up to 2018, when he sold it to me. So I'm pretty confident in saying it's  not been messed with too much and the old pipes were standard. As far as I'm aware, the fuel filter is standard as for the Golf engine. I don't know if that differs from the original non-turbo diesel engine but certainly the old pipes fitted that engine too. It's  quite puzzling. 

Hello JRT, I will try and sort out some pictures. My mate Andy did the "offering up" (as the Haynes manuals always say) while I was away so I'm going from what he told me. I'm really not sure if it's miles out or only slightly. But it's currently immobile on my drive in Derbyshire (fuel tank off) so if I can manoeuvre underneath with my phone I'll try and do some pics. 

Cheers, John

Re: Coolant pipe replacement

Posted: 29 Jul 2022, 07:17
by Mocki
Methinks you need to change your location in your profile, that way you might find someone is close and can assist you ?
I also think you should be able to swivel the pipes to fit where your filter is ?

Re: Coolant pipe replacement

Posted: 31 Jul 2022, 10:36
by Williambrown
Thanks. I changed jobs and moved a few months ago, so profile/location now updated! 
JK have now said they think the pipe may be wrong and have offered to swap it, so fingers crossed this works out ok.

Re: Coolant pipe replacement

Posted: 31 Jul 2022, 10:46
by davidoft1
maxstu wrote: 27 Jul 2022, 06:35 Send them back....besides l thought they came with joining sections for ease of fitting?

https://brickwerks.co.uk/product/coolan ... arly-32mm/

They sell the same ones too

Re: Coolant pipe replacement

Posted: 31 Jul 2022, 19:13
by maxstu
What they sell is not always what they send???
Yet l do use JK and never had a problem. But not my first choice of supplier. My camper is insured with them too.
.