Q for Lee P - cooling pipes

[jimbom30cab]

Bit of help needed with the cooling system if poss chaps
i've taken Lee's advice and used the combined M30 and M20 coolant pipes like below

would i be right in assuming the pipe shown goes to the expansion/header tank ?
if so i was wondering how people have done it
i found this pic on the net which shows a very long pipe run which i've marked in blue but wondered if anyone has just gone a more direct route?

also as i'm converting a M40 car with built in header tank the rad i dont have the tank and pipe shown in yellow above. Are they from an M20 car ??
lastly i have the radiator shown the the above pic and it also has the 2 terminal termostat at the top right of the rad. Is this what you guys use to switch an electric fan ?
thanks very much guys
Jim

[Bristol_Jer]

Bit of help needed with the cooling system if poss chaps
i've taken Lee's advice and used the combined M30 and M20 coolant pipes like below

would i be right in assuming the pipe shown goes to the expansion/header tank ?
if so i was wondering how people have done it
i found this pic on the net which shows a very long pipe run which i've marked in blue but wondered if anyone has just gone a more direct route?

also as i'm converting a M40 car with built in header tank the rad i dont have the tank and pipe shown in yellow above. Are they from an M20 car ??
lastly i have the radiator shown the the above pic and it also has the 2 terminal termostat at the top right of the rad. Is this what you guys use to switch an electric fan ?
thanks very much guys
Jim

That pipe will go to the header tank from a facelift m20 engined car as will the small pipe from the top corner of the rad.

If you are using the half m20/half m30 pipes (like I did) then the pipe in blue on your pic doesn't need to be routed that way, it will come from the header tank and join up under the inlet manifold

[jimbom30cab]

If you are using the half m20/half m30 pipes (like I did) then the pipe in blue on your pic doesn't need to be routed that way, it will come from the header tank and join up under the inlet manifold

TOP BLOKE !! Thanks mate, happy with that

i'll get a wanted advert raised for the bits

thanks again.

[Bristol_Jer]

No problem

Just thought, you might need to make a bracket to fit the m20 tank to your car, as being a 4 pot one I doubt the bracket would be on your car.

[jimbom30cab]

yer was thinking that and honestly didn't think for one second of a cable tie bracket.....honest

[Bristol_Jer]

Nothing wrong with a cable tie or 2 Just think it it as a temporary fix, it will get done 'one day'!

[jimbom30cab]

lee, just before i cut the coolant pipes, hope you don't mind me posting a pic of your bay

the inlet manifold bracket i've circled in white

did you route your expansion hose to the left (yellow arrow) or right (blue arrow)

am guessing it was to the yellow arrow side looking at your pics but good to check

ta v much

engine bay looks bl00dy brilliant by the way

[mcbonio]

Wish my engine bay looked like that....

[jimbom30cab]

it's Lee's bay, yer does look fab

[leeparkes]

Tbh i cant remember but i think it came out to the right of the manifold support (blue arrow)

[jimbom30cab]

thanks