Replacement Alloy Radiator for 350i

Replacement Alloy Radiator for 350i

Author
Discussion

keynsham

Original Poster:

316 posts

278 months

Tuesday 15th October
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mk1fan

10,652 posts

232 months

Tuesday 15th October
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Put the money towards doing this - https://www.pistonheads.com/gassing/topic.asp?h=0&...

Plus reverting to the 'SD1' set up of the pipework that removes the airlock and self bleeds the system through the expansion tank.

Plus swap the old expansion vessel for the Merc item with the reduced number of entries (the revised pipework removed one of the feeds going to the expansion tank.

keynsham

Original Poster:

316 posts

278 months

Wednesday 16th October
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Looks interesting but seems a lot of work when I can just buy a radiator off the shelf that will fit straight in. I have never had any cooling issues and filling the system always seems pretty straight forwards too. I just cannot decide whether a recore or new alloy radiator is best! The standard radiator is straight out of a series 1 V8 Range Rover (one extra vent pipe connection needs blocking off) and even these are readily available but not very cheap!!

alabbasi

2,707 posts

94 months

Wednesday 16th October
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I'm sure it will be fine. Radiators are not cutting edge technology.

keynsham

Original Poster:

316 posts

278 months

Wednesday 16th October
quotequote all
alabbasi said:
I'm sure it will be fine. Radiators are not cutting edge technology.
Nothing on my wedge is cutting edge technology!!

rev-erend

21,536 posts

291 months

Sunday 20th October
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£400 seems like a good price for an alloy rad. Pretty sure it's about £250 for a recored rad but I'm sure the price varies across the country.

With all TVR radiators we have to be careful of the body to chassis mounts are all tight and rubber mounting the rad to prevent vibrations and twisting of the rad.

keynsham

Original Poster:

316 posts

278 months

Sunday 20th October
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Well I had a bit of a result! I found a second hand 350i radiator only 30 miles from me in perfect condition that had been changed only for an ally upgrade. Needless to say it is now in my shed!!

adam quantrill

11,579 posts

249 months

Thursday 24th October
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Nice! Yes I was going to suggest secondhand. Just get exactly the same one, and be prepared for some slight fettling if from a range rover or SD1.

keynsham

Original Poster:

316 posts

278 months

Saturday 26th October
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So I fitted my nice new second hand radiator and all looked really good until the next morning. To my amazement, I had the same leak and coolant on the floor at the nearside corner of the radiator. So after a bit of head scratching, it occurred to me that the coolant seemed to be seeping from the fibreglass and not dripping from any hose or joint?? So I got to thinking and last year I had an issue that turned out to be a head gasket failure that was pressurising the coolant system and blowing it out into the engine bay. It seems that about half a pint of coolant had managed to seep into the fibreglass shell just in front of the front wheel where it seems to be a hollow box section. I drilled a small hole in it and to my surprise the trapped coolant came pouring out!!

Things are never what they seem!!

Wedg1e

26,891 posts

272 months

Saturday 26th October
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Doh!
... but then, at least you have a spare radiator biggrin