can en expert or two explain to me why/if/how a series 3 radiator cannot be used with a series 2 engine? I assume the issue is technical, not just a style matter or something, I was told this by a jag mechanic who deliver the engine. The S3 radiator I have had (I think) four out/inlet tubes and one electrical connector, maybe a temperature sensor. He said I need a four core radiator for the series 2 body/engine. Does this earlier radiator operate on a different principle or is its thickness important in cooling the engine or the number of outlets different? same issue with the radiator hood/cowl, the fan cowl and the header tank, are their operations / sizes the issue or is it more to do with mounting, i.e. can be altered in some manner.

 

The S3 radiator is a thinner radiator, designed to be paired with the Plastic fan.

The S2 radiator is thicker, and is designed to run with the Steel fan.

The Plastic fan draws more air then the Steel fan of the S2.

It is a technology thing and the S3 cars certainly did not suffer the overheating issues the S2 cars did.

The external dimensions are identical, as in hose configuration, mounting pins etc.

If you wish to use the thinner S3 radiator, use the S3 fan set up, or thermo fans.

The carby cars ran 74c thermostats, and the EFI cars ran 82c or 88c thermostats.

 

Thanks for that Grant.
just to clarify,

If you wish to use the thinner S3 radiator, use the S3 fan set up, or thermo fans.

so i would need to acquire a larger S3 plastic fan or a after market thermo fan?

The carby cars ran 74c thermostats, and the EFI cars ran 82c or 88c thermostats.

not sure I understand, this is the sensitivity of the sensors theromostat? what action would be required to change or alt if such action was needed?

thanks

 

You and Doug worry me at times, when all this very granular detail comes pouring out :-) Its one thing to know it and another to recall it. I wonder how your heads dont explode. Thanks both for sharing the experience.

 

HA, way too many years sorting V12's, drinking, more V12's, drinks again, BBQ and drinks, so an and so forth.

I am writing all this down as I go, coz sometimes it will simply not return to the sensible part of the brain, and more jiberish is simply not good.

Reduced the intake of Nectar a tad to, some say it will help, we will see. Coffee simply does not cut it the same?????.

 

OK, you are over the Ditch, and it really does not get that HOT as compared to here.

If you have a S3 radiator that is better than the S2 unit, fit it. Leave the S2 fan set up as is. Providing the hydraulic hub is still OK.

IF it runs warmer than you like, hunt down a S3 set up, and swap the fan out for the S3 system. Direct fit, no massive alterations needed.

The thermostat info was just a by-thought. The carby cars ran a cooler stat in some markets. As emissions became a headline issue, the engine running temp was increased to reduce emissions. It did work to a degree.

Leave your thermostat alone, as long as it works as intended.

 

hydraulic hub?

 

I'd say Grants referring to a vicous fan coupling another name I think.

 

Thanks Jim.

A classic case of jiberish, but then we Aussies talk funny to the rest of the planet apparently.

 

four more pictures in my exciting radiator with pink arrows collection. not sure where this one is headed too




four more pictures in my exciting radiator with pink arrows collection. logic says to radiator but already crowded.




four more pictures in my exciting radiator with pink arrows collection. this guy to the thin pipe that runs over the cowl/hood on the raditor?




four more pictures in my exciting radiator with pink arrows collection. what wires from where?

 

My 1980 Series 3 had a steel fan on a viscous coupling. So were Jaguar just using up their Series 2 stuff ? I actually had the coupling fail on a trip down to London from Rugby. It made all sorts of squealing noises as I went along !

 

I have ED Falcon(93-94, same fan until end of AU Falcon 2002) twin thermo fans fitted, right dimensions to fit the rad. Many other model Falcon or Commodore fans should do the job.

 

On my S1 the rear hose goes to the upper left of the radiator, the front hose goes to the expansion tank.

 

fuel bowl overflow, just dangles near engine mount

 

Possibly crankcase oil breather pipe. Feeds back to both carbys.

 

Thanks for that great info. Just so happen to have an AU Falcon up in the top paddock "storage area"
Cheers Simon

 

You will have to get a 2" strip of aluminium and screw it to the bottom of the radiator and bend it out towards the engine to slot the bottom of the fan housing into it,and a couple of screws into the top of the radiator shroud to hold it in place.(I used an aluminium carpet edging strip from Bunnings)
You will also have to trim away bits and pieces of the fan housing to make room to get it past the water pump pulley.

Not the best pictures, but it will give you the idea.

 

Thanks for the extra info. Noticed my top rad hose outlet is weeping so will probably try and find an upgraded radiator first.
Thanks again
Simon

 

Clarke's pictures very help, I am a visual arts person so seeing helps. Yes, the rubber nozzle at the peak of the engine breather pipe is missing so the pipe is just sitting. Good to know those other tubes just 'hang' or I'd have been plugging them into some damn thing very soon. Radiator photo re tubes very very helpful.