1.8t into mk1 heater matric plumbing
Posted
#1409973
(In Topic #185505)
Settled In
I seem to recall from somewhere that when installing the coolant pipes from the 1.8t engine (BAM in my case) into the mk1 heater matrix, a bypass is required as to avoid blocking the flow when the mk1 heaters are turned off. I presume that the mk4 platform matrix had an internal bypass. Can anyone confirm ? If so, do I run a pipe between the heater inlet-outlet pipes so that the water can keep flowing if the mk1 heaters are switched off ?
cheers
phil
Posted
MOTY 2013
so ideally you should put a T piece in just after the matrix feed so coolant can still flow when heaters are set to cold, I found the perfect thing on a MK3 automatic but have a mooch round you should find something
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Posted
Newbie
Sorry to comment on an older post. but I was wondering if you could elaborate on the advice rubjonny gave? I am currently putting a BAM into a mk2 Scirocco and have the same issue with the heater matrix plumbing!
My question would be, Do you need two T pieces between the feed and return to the heater matrix, positioned just before the heater cut off flap?
If I am thinking about this wrong would it be too cheeky to ask if you could draw the setup and post a pic :/
Cheers guys!
Posted
MOTY 2013
Imagine the heater.matrix as a loop allowing coolant to flow, if you close the valve this stops the flow. You need to T in before the valve a pipe which can bypass the matrix and allow coolant to flow again. If there are no spare outlets you can out another T on the output pipe from matrix and link it back in there
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!)
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Posted
Settled In
As above really, with mine I ended up getting 2 tee pieces. This allowed me to have the feed to and from the matrix but the tees allowed a bypass pipe to be installed before they entered the matrix. That way if you close the heater it bypasses and maintains circulation.
It's been a while but I seem to recall thinking it wasn't necessary after I did it as the bam coolant layout had a bypass in it somewhere anyway but it didn't do any harm
Posted
Newbie
Thank you both very much for your very fast responses!
I will have a good look at the system and try to find the bypass already in there! But will also order a couple of t pieces just in case!
By the way how much of an animal was the BAM conversion in the end? Worth getting a LSD?
Again Thank you both!
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