Omega Owners Forum

Chat Area => General Car Chat => Topic started by: raywilb on 25 August 2013, 19:47:47

Title: car rads
Post by: raywilb on 25 August 2013, 19:47:47
how important is it that the correct radiator is fitted to a vehicle, or can any rad be fitted as long as the hoses fit.  :-\
Title: Re: car rads
Post by: tunnie on 25 August 2013, 20:15:50
Fairly I'd say, needs to match the engine, the cooling that is already there. In the case of the Omega needs to have an ATF cooler if an auto too  :y
Title: Re: car rads
Post by: Andy B on 26 August 2013, 01:00:47
....
In the case of the Omega needs to have an ATF cooler if an auto too  :y

Unless the auto box has its own cooler in behind the rad ie late Omegas  ;) ;)
Title: Re: car rads
Post by: martin42 on 26 August 2013, 01:17:19
Very important,it's to cool the engine down,go small and could cook the engine also going to big can cause engine to run cooler than it should,stick to the size and type fitted,unless its for a modified car your building
Title: Re: car rads
Post by: Andy B on 26 August 2013, 01:29:14
.... also going to big can cause engine to run cooler than it should, .....

That's what the thermostat is for  ;)
Title: Re: car rads
Post by: raywilb on 26 August 2013, 09:57:36
what it is , I sent for a rad to fit a scenic & when it arrived it was a bigger rad, though with adjustment to the top fixing bolts it fitted in. the car is having a water loss problem & nobody has been able to find out where from. thermostats new & its a separate cooler for the autobox. it has never overheated, also oil wise no loss there & keeps very clean.  :-\
Title: Re: car rads
Post by: Andy H on 26 August 2013, 14:13:34
Have you had a good look at the washer on the pressure cap? If there are any cracks then fit a new pressure cap.

Once you have a new cap fit a Schraeder valve to the old one and use it to pressure test the system :y
Title: Re: car rads
Post by: raywilb on 26 August 2013, 16:39:17
Have you had a good look at the washer on the pressure cap? If there are any cracks then fit a new pressure cap.

Once you have a new cap fit a Schraeder valve to the old one and use it to pressure test the system :y
will do , as iv,e said no  " overheating " though when coolant is hot there is a significant rise & fall to be seen in the expansion tank.