Hi guys,

So my heater hasn't worked for ages. Finally got around to doing shbox's tutorial. Removed both heater hoses at the water pump and ran a garden hose through it. Blasted all this rusty gunk grap out the core

Anyway I reassembled, filled and bled with just water initially to check the problem was fixed. Heater now working perfectly. Took it for a decent test drive with some wot and left it idling for a good 20 mins. All seemed fine but the upper radiator hose appears to be really bulging - like a baloon. Looks like its going to blow off. Although it didn't.

The hose is pretty squishy so got a new one and a new rad cap on the way. Hopefully i'm worrying over nothing...

Has never overheated, even when the heater wasn't working. Has been sitting in my garage for the past 3 months and not a drop of coolant on the floor.

 

Photo doesn't really do it justice, but if you look at where the clamp is, you can see its swelled up quite a bit compared to the bit after the clamp closest to engine.

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lol really? well thats good to hear. I was just worried that it was building too much pressure but i guess 18psi would cause it to bulge up a bit.

 

When I got mine I had to replace all the hoses coolant, heater, vacuum all that stuff dry rot. Just replace it all slowly and itll get better.

 

Yeah I guess its to be expected on a 20+ y/o car. I've got new cap, upper and lower hose on order. (takes a good 2 weeks for shipping out here). The heater hoses look OK but will have to wait in any case as they are quite expensive, although I see its possible to re-use the existing metal parts, but thats going in the to hard basket for now.

Thanks for putting my mind at ease