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Where’s my Thermostat?
Posted: 15 Jun 2021, 17:10
by Lee1972
Hi guys,
Silly question, but where’s my thermostat located? my engines overheating and the fan switch also seized on me today.
I’m not great with engines.
Thanks
Re: Where’s my Thermostat?
Posted: 15 Jun 2021, 17:32
by R0B
Re: Where’s my Thermostat?
Posted: 15 Jun 2021, 17:41
by TONYT25T25
It looks as if you also have a vacuum tube missing between the airbox and the Carb.
Re: Where’s my Thermostat?
Posted: 15 Jun 2021, 17:43
by Lee1972
Thanks mate
Re: Where’s my Thermostat?
Posted: 15 Jun 2021, 18:22
by weimarbus
sorry Rob, wrong drawing OP has early cooling system, the thermostat is in an aluminium casting attached to the waterpump
Re: Where’s my Thermostat?
Posted: 15 Jun 2021, 19:15
by R0B
Ahh right, TBH I only know the 2.1. I wrongly assumed the stermothats were in the same place.
Re: Where’s my Thermostat?
Posted: 15 Jun 2021, 19:44
by jrt
If you have to remove the housing give all the bolts a good brush and sparky with plusgas beforehand. Have you tested the radiator switch by bridging the the connector pins with a paper clip to test if it is faulty?
When you say overheating have you checked coolant levels in both tanks?
David.
Re: Where’s my Thermostat?
Posted: 15 Jun 2021, 21:17
by Lee1972
Hi David, yes I’ve checked the coolant levels and they’re both good. I haven’t tested the radiator, but I’ll do that.
Thanks
Re: Where’s my Thermostat?
Posted: 15 Jun 2021, 22:02
by jrt
Re: Where’s my Thermostat?
Posted: 17 Jun 2021, 17:05
by Lee1972
I’ve noticed the lower pipe here on the photo doesn’t get hot while running the engine so could this be a stuck thermostat?
Where’s my Thermostat?
Posted: 20 Jun 2021, 06:34
by DoubleOSeven
Lower pipe is the cooled water coming back from the radiator. Top pipe is the hot water going to the radiator.
