Radiator size

[MUDDYMAN]

I have purchased a new radiator for my stag but when I tried fitting it it is too big. It measured 570mm wide and the old one is 555mm. The supplier says it can be fitted slightly forward of the body but not sure how this is supposed to work. I had to enlarge one of the locating holes for the bottom fixing studs as they did not line up and when I tried to fit the radiator the ends hit the sides of the opening. Any one know how to deal with this? I dont want to do a bodge job because of a wrongly sized radiator?

[Lingen]

I would be tempted to deal with it by asking the supplier to replace it with the right one! Having one that thick could make belt changing very difficult for a start.
Correct ones are available.
Mike.

[MUDDYMAN]

Thanks Mike,

They only do one radiator so nothing else to pick one from them. I will go to Tony Hart and get a Supergill version I think.

Alan

[Lingen]

Alan.
That one should fit properly.
Mike.

[Tonywhite]

I use the ones paddocks supply original rad recored

[stagwingnut]

Do Paddocks radiators have enough room for belt changing Tony ? I’ve bought two rads over the years both of them didn’t allow belt changing , gap has always been too narrow at the crankshaft bolt , regards Graham

[DMT]

I have what I have been told is a Supergill rad. I am very happy with it. I cannot change a belt without moving it. ( small problem for big gain)

[stagwingnut]

It seems to be a lottery when one purchases a rad is whether one can change a belt or not

[v8ken]

I had 5mm taken off the bush behind the viscous coupling,it then allowed future belt removals.

[stagwingnut]

Oh , that’s a way around the problem thx !!

[stagwingnut]

Did you have to remove 5 mm off the length of the crankshaft bolt or is the hole deep enough to accept the extra 5mm , ?

[jbuckl]

The bolt length can be checked for its engagement.
On a mk2 the factory bolt was far too short… only gave 3 turns of thread engagement!
you’re probably ok taking 5mm off if it’s mk 2
engagement should be 5/8” minimum.
5/8 unf x 4/1/2” is what I fit. (18tpi)
If it needs cleaning use a long reach tap.
apologies for mixing up units!…. You said 5mm!

[jbuckl]

Here’s the tap

[stagwingnut]

Yes thanks for the photos , mine is a mk2 so it probably will go in without any shortening of the bolt regards Graham

[Lingen]

Alan.
If it helps at all, I had mine rebuilt some years ago with the four-row offset core used in most Mk.2 cars. This type was one of three tested for the Club by engineers at the Gaydon Motor Museum, and was found to be the most efficient.
I have just measured mine. The maximum width across the tanks is 6 cm. The core is 4 cm wide. and there is a clearance of just over 1cm between the pulley bolt and the core, which is just enough to pass a belt through.
Mike.