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Money being no object, which motor sport would you be involved in?
Formula 1
4%
Touring Car
13%
Rallying
48%
Indy Car
0%
Hill Rallying / Comp. Seffary
4%
Karting
4%
Motorbike F1
9%
Rally Cross
9%
Freestyle
0%
Something Compleatly Diffrent (Please tell us what, add comment).
9%
Total votes: 23

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Home » forums » 4x4's » Problems

Engine gets hot when towing

Just had new radiator fitted now engine gets very hot when towing (ok when solo) have spoken to my garage and he says its the fan that is not working as it should so I need to get another fan has anyone had the same problem ? should I go for the Daihatsu fan or is there an alternative please.

‹ tow bar Rust/corrosion. ›
Submitted by sweep on Mon, 07/07/2008 - 09:50.

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I'd try running without a

Submitted by Nev. K on Mon, 07/07/2008 - 16:50.

I'd try running without a stat befor bying a new one. As for the fan, viscous type? They are well known for giving up. Easy to see if yours has. Drive around to get her hot, then use a broom handle or such, very gently (you don't want to lose a finger or such) let the fan rub against it. If the viscous coupling has leaked away it will not take much pesure to stop the fan going around. If this is the case, you can:
1) Replace the fan with anouther (new) one.
2) Replace the fan with an electric (Kenlow) fan, trermostaticly switched.
3) Unbolt and split the 2 halves of the viscouse fan body, and sandwich some rubber matting / carpet into the gap, making it into an old fashoned constant running fan.

Which choice depends on how deep your pockets are, how mecanically minded you are, and whether you mind bodery or not...

Any veiws expresed in this thread by me are purely from my own experience, and (sometimes) falible memory. Hope my comments help, but please don't take them as gospel.

Thanks

Submitted by sweep on Fri, 11/07/2008 - 16:21.

Thanks for your help have tested thermostat is not working as it should so have ordered one from Graham Dewhurst so will try new one and if not then I will get a new fan

Thanks again

Regards Liz

Thermostat

Submitted by Mace on Mon, 07/07/2008 - 14:46.

Fit a new thermostat. Towing creates more heat so first make certain the old thermostat is fully operational. Get CORRECT TYPE of thermostat for diahatsu. It a longer reach than normal thermostats. Cost about £20 each. Using a conventional thermostat for 'normal' motors will overheat the engine ...... assuming a new thermostat was also fitted, did the mechanic fit the wrong type of thermostat?

thanks

Submitted by sweep on Fri, 11/07/2008 - 16:18.

Have ordered a new thermostat from Graham Dewhurst
so will try that

Regards Liz

Overheating

Submitted by oldminiman on Mon, 07/07/2008 - 10:59.

Firstly what vehicle. It may be an airlock in the system that is causing the problem so until you have ensured that the system is clear of air locks before getting a new fan fitted.

OLDMINIMAN

Thanks

Submitted by sweep on Fri, 11/07/2008 - 16:16.

It is a Daihatsu Fourtrak checked for air lock so have ordered a thermostat from Graham Dewhurst so will try that
thanks for your help

Regards Liz