classic car forum header
Classic cars forum & vehicle restoration.
 FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 
How To Register     Posting Photographs     Privacy Policy     F/book facebook.com/oldclassiccar

Engine overheat
Goto page Previous  1, 2, 3
Post new topic   Reply to topic    Classic cars forum & vehicle restoration. Forum Index -> Mechanical Restoration
Author Message
badhuis



Joined: 20 Aug 2008
Posts: 1198
Location: Netherlands

PostPosted: Sat Aug 15, 2020 10:19 am    Post subject: Reply with quote

lowdrag wrote:
So, are wax stats still available?

Not sure what you exactly mean. Most, modern and bellow types, are wax filled thermostats.
But I think you mean the bellows type of thermostat. There is the opening of a valve like the normal type of thermostat, but there is also the physical movement of the bellow. On the TR4 this bellow close or open the secondary pipe, something that is lost when fitting a normal type of thermostat.
_________________
a car stops being fun when it becomes an investment
Back to top
View user's profile Send private message
Rollmop



Joined: 23 Dec 2016
Posts: 14
Location: Market Drayton, Shropshire

PostPosted: Fri Aug 21, 2020 11:18 am    Post subject: Reply with quote

Just a concluding follow up with information that could be useful to others. I tried increasing the advance on the timing from 2degrees before TDC as per the manual to 4 degrees and the engine temp ran 2 degrees cooler but pinked under load. Reduced it to 3 1/2 degrees before TDC and the pinking disappeared but the engine still ran cooler. A more significant change came with clamping off the bypass hose, the temperature dropped 6 degrees at the radiator head. To simulate the same but allowing the bypass to work when it is meant to, I have fitted a 12v solenoid valve into the bypass hose routed via a fuse to a switch under the dashboard. Once the engine has warmed up and is running correctly I can shut down the bypass flow.
Thanks for all the great suggestions from the very helpful members of this forum.
_________________
Failure is not an option - in my case it is usually a feature.
1971 Herald convertible
1952 Triumph Mayflower
Back to top
View user's profile Send private message
peter scott



Joined: 18 Dec 2007
Posts: 6571
Location: Edinburgh

PostPosted: Fri Aug 21, 2020 4:49 pm    Post subject: Reply with quote

I like your idea of the valve in the bypass. I had wondered about rerouting the heater connections if the heater includes a water valve.

Peter
_________________
http://www.nostalgiatech.co.uk
1939 SS Jaguar 2 litre saloon
Back to top
View user's profile Send private message Visit poster's website
Ray White



Joined: 02 Dec 2014
Posts: 4206
Location: Derby

PostPosted: Fri Aug 21, 2020 5:10 pm    Post subject: Reply with quote

I would love to see a photo of that installation as I was put off installing a heater using the bypass hose for the reasons you state. Some people have fitted a manual valve but your solution seems much more practical.

Please tell us more!
Back to top
View user's profile Send private message Send e-mail
Display posts from previous:   
Post new topic   Reply to topic    Classic cars forum & vehicle restoration. Forum Index -> Mechanical Restoration All times are GMT + 1 Hour
Goto page Previous  1, 2, 3
Page 3 of 3

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
Forum T&C


php BB powered © php BB Grp.