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Radiator sizes

Posted: 11 Aug 2021, 14:51
by ash1293
Since I was dropping the radiator pack to investigate the noisy fan I thought I’d take the opportunity to renew seeing it was still on it’s original from ‘89 and showing signs of corrosion.

Did a bit of research and thought I’d done alright by picking up an NRF 53944, states 42mm thickness, brazed fins etc and a 5yr warranty.

Problem that I now see is my original radiator is nearly 60mm across fins (presume 44mm core?) and the new is 42mm (assuming 34mm core)

So do I fit it anyway in the hope a new thinner one will still be better than an old thicker one?
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Re: Radiator sizes

Posted: 12 Aug 2021, 12:33
by ash1293
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Old radiator with dense fins, appears to have two offset rows of large ‘cores’ numbering around 17 in each. Difficult to see due to the dense fins.

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New radiator the ‘cores’ are in line with each other, smaller and are around 40 in each.


So I reckon the 60mm is just an original old design superseded by newer radiator technology/manufacturing.

Hella back catalog only list two variants and according to technical diagrams they measure 34 & 44mm across the fins.

So I’m leaning towards this one being ok.

Re: Radiator sizes

Posted: 12 Aug 2021, 20:00
by slowcoach
I'm certain it's much much better than a 30yr old rad !

Radiator sizes

Posted: 12 Aug 2021, 20:59
by ash1293
It’s fitted, bled and tested up to temp.

I’m in no real doubt it’ll be ok, just wasn’t really expecting the one I took off to be near 60mm

Re: Radiator sizes

Posted: 12 Aug 2021, 21:59
by TONYT25T25
Good job, did everything fit into the existing brackets etc.

Re: Radiator sizes

Posted: 12 Aug 2021, 22:09
by ash1293
Direct fit - plastic side tanks the same as original.



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Re: Radiator sizes

Posted: 12 Aug 2021, 22:51
by TONYT25T25
Thanks, last time I looked at mine, I thought that needs replacing at some time.