I couldn't get my heater blower running cold in the summer so I adjusted the heater valve to close hard against the stop. I did this by removing my radio and slacking off t6he outer cable clamp screw and sliding the outer cable along a bit. During that cold snap I couldn't get enough heat so now I have moved it bach so the valve hits the fully open stop. It is a bit his and miss so I guess you could get it just right. It was suggested that I should drop the sparee wheel carrier and adjust it from under there at the actual valve but I coudn't be asked in this weather. I was sure it was the stat or an air lock but feeling the pipes hot gave me the clue. It blows nice and warm now. Have a think about it.
Cheers
wolfie
Well-timed silence hath more eloquence than speech.
"A quiet shy boy who took little part in games or sport"
88 High top 2.1 WBX
Having bled the radiator and only got a small amount of air out, the van was still fookin freezing and not getting much above the bottom of the temp gauge, so today I decided to pop a new thermostat in. What a difference, now gauge gets upto temperature within a mile or so and the heater actually delivers heat. Not bad for an £8 fix.