13 replies to this topic

[danbmini]

hello iv got hold of an MG metro 1275 and was wondering what to do about cooling, as in theres no by-pass hose. So what do people do to get round this issue.

cheers
dan.

[olds_kool_lews]

has the head on the drivers side got a heater tap? or is it blanked off? as if this is so, you'll need to drill it out, and fit a heater tap, this will allow water to flow through and youll have no problems, this is what i did on mine, and it works perfectly, with no over heating

[Pauly]

Drill a couple of holes in the 'stat for a bypass, what lewis has said is fine but you will need to make sure your heater valve is contantly open, which is fine in the winter but a bit too much for the summer .

[olds_kool_lews]

what lewis has said is fine but you will need to make sure your heater valve is contantly open, which is fine in the winter but a bit too much for the summer .

mine is constantly open lol but when summer comes, ill be drillin the stat and fitting an alloy 2 core rad to aid cooling!

[danbmini]

yes it is is bloked off, so if i drilled it out for a heater tap. could i fit a water pump with a take off for a bypass hose and link it to the take off under the thermastat housing??

[olds_kool_lews]

yes it is is bloked off, so if i drilled it out for a heater tap. could i fit a water pump with a take off for a bypass hose and link it to the take off under the thermastat housing??

you wouldnt need to, as you would run it through the heater, to the small outlet on the bottom rad hose, unless ur not having a heater in your mini...

[danbmini]

yes it is is bloked off, so if i drilled it out for a heater tap. could i fit a water pump with a take off for a bypass hose and link it to the take off under the thermastat housing??

you wouldnt need to, as you would run it through the heater, to the small outlet on the bottom rad hose, unless ur not having a heater in your mini...

but if you ran it just through the heater you would have to have the heater on all the time no?

[Pauly]

but if you ran it just through the heater you would have to have the heater on all the time no?

what lewis has said is fine but you will need to make sure your heater valve is contantly open, which is fine in the winter but a bit too much for the summer

Drill some holes in the thermostat so you have a bypass.

[lawnmowercrap]

yes it is is bloked off, so if i drilled it out for a heater tap. could i fit a water pump with a take off for a bypass hose and link it to the take off under the thermastat housing??

you wouldnt need to, as you would run it through the heater, to the small outlet on the bottom rad hose, unless ur not having a heater in your mini...

but if you ran it just through the heater you would have to have the heater on all the time no?

You drill the hole in the bottom left corner head and put your heater valve onto it. Then you put the pipe on the left of the bulkhead that leads into the car onto the heater valve. That way you use the heater cable in the car to tuen it on or off.

You then link the right hand side pipe into the radiator bottom hose.

You dont need a bypass, if anything its good that youe havent got one as that way it wont split on you. Just drill some holes in the stat or buy a stat from halfords with the bypass in it.

Edited by lawnmowercrap, 08 February 2010 - 08:53 PM.

[curly305]

MG metro 1275 and was wondering what to do about cooling, as in theres no by-pass hose.

do you mean on the water pump to the bottom of the head?

[morley]

why does the stat have to be drilled??

[bmcecosse]

You only need one 1/8" hole in the rim of the stat - just to ensure a little water can circulate. Makes for a MUCH faster and better heater - especially if you use an 88 degree stat!

[Pooky]

You only need one 1/8" hole in the rim of the stat - just to ensure a little water can circulate. Makes for a MUCH faster and better heater - especially if you use an 88 degree stat!

How's that then? Drilling the stat means that water is always going through the radiator and therefore takes longer to get up to temp.

I didn't want a troublesome bypass between the block and water pump, so after seeking advice from here, went for a system using a sandwich plate under the stat housing, ran hose through my inlet manifold and back to a tee piece in my bottom hose. I also fitted an 88 deg stat at the same time. Now with my 2 core rad it gets up to temp in a matter of minutes and stays there

[Pauly]

You only need one 1/8" hole in the rim of the stat - just to ensure a little water can circulate. Makes for a MUCH faster and better heater - especially if you use an 88 degree stat!

How's that then? Drilling the stat means that water is always going through the radiator and therefore takes longer to get up to temp.

I didn't want a troublesome bypass between the block and water pump, so after seeking advice from here, went for a system using a sandwich plate under the stat housing, ran hose through my inlet manifold and back to a tee piece in my bottom hose. I also fitted an 88 deg stat at the same time. Now with my 2 core rad it gets up to temp in a matter of minutes and stays there

Thats what im going to do, but running it direct to the bottom hose.