moving of intercooler
Submitted: Tuesday, Jan 01, 2008 at 22:22
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53020
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fishaholic
Hi all!
Im still having dramas with my 100 series getting hot, now that summer has come round again. It is a 01 1hz after market safari turbo. I would like to move the intercooler from front mount too under bonnet mount. The reason being is for increased air flow for the radiator also due to the intercooler creating hotter air b4 it enters the radiator. I also have an aircon condendsor and auto trans cooler infront of radiator, makes you wonder how the radiator works at all. I just would like to know if anyone has a bonnet intercooler and bonnet scoop on a 100 series already.
Cheers Crawf
Reply By: Mr Pointyhead - Wednesday, Jan 02, 2008 at 11:39
Wednesday, Jan 02, 2008 at 11:39
I run a Safari Turbo and intercooler on a 2003 1HZ 105 series. I do not get any overheating problems at all with it, infact the engine runs slightly cooler now.
Do you have a EGT (Exhaust Gas Tempretiure) guage on yout engine to monitor what the turbo is doing ?. It is possible that the installer of the turbo has set it up with to much boost, resulting in too high a EGT when under load. This could be the cause of the overheating. However, this could also result in premature failure of the engine. If this is the cause you need to get it checked ASAP.
Other get the normal causes of overheating checked.
- Is the Radiator fan coupling working ok ?
- Is the Radiator not blocked (Internally anbd externally) ?
- Is the coolent ok ?
etc.
IMHO, there is something wrong with your engine/cooling system at the moment that is the root cause of your problem. You need to find out what that is before any more damage is done to the engine.
AnswerID:
279325
Reply By: Member - DOZER- Wednesday, Jan 02, 2008 at 17:01
Wednesday, Jan 02, 2008 at 17:01
Gday
i agree with others, it is not your intercooler causing the problems, the first thing to do is
check the gauge...is it really getting that hot....a probe on the outlet back to the rad will give you the result. When your under there, the fan should be making alot of noise and sucking aur through...if it isnt, and its hot, change the fan viscous coupling...they loose their oill....I would also suggest you get your radiator checked for mud and if you havnt changed the theristat, do so.
The other things that can be contributing is too much fuel,too much boost restricted exhaust muffler or late injection timing...diesels usually run cool, i have 4 rads infront of my radiator (full width intercooler, power steer cooler, auto tranny cooler and air conditioning) and not a problem with heat.
Andrew
AnswerID:
279384
Follow Up By: fishaholic - Thursday, Jan 03, 2008 at 16:27
Thursday, Jan 03, 2008 at 16:27
Cheers all for your replies!
The reason im asking about this is cause all other things have already been done:
new radiator, heavy duty one
new thermostat, all 3 of em
new clutch fan
water pump etc cleaned
boost pressure and fuel checked ( after which we increased slightly which made more power but didnt alter heating )
clylinder head checked ( with the CO2
test or something like that, i still think it may be that which may be the prob )
I just thought it looked like a hell of a lot infront of the radiator and the intercooler may not be that hard to relocate. I'm also thinking of fitting a new 3inch straight through exhaust to help.
FollowupID:
543740
Follow Up By: Davo_60 - Thursday, Jan 03, 2008 at 21:17
Thursday, Jan 03, 2008 at 21:17
Hello,
the only thing it seems you haven't checked is the actual temp (other than factory gauge) with an aftermarket unit or probe as per Dozer's reply. You may have already done this but you have not mentioned it yet. It seems to me that you have covered everything else.
FollowupID:
543782
Reply By: Member - DOZER- Friday, Jan 04, 2008 at 11:55
Friday, Jan 04, 2008 at 11:55
Gday again
Make sure the head has an earth strap to the body somewhere...that helps the gauge read right. If you are loosing coolant out into the bottle, or it isnt sucking it back in, you have compression leaking into the system. co does not usually show up in a diesels radiator even if it is leaking., but the loss is a sure
sign.
lastly, it is very uncommon, but water pumps plastic fans have been known to spin on shaft.
See, if it isnt the cooler, and the motor is not running out off spec, it must be the flow between the two....thermistat must be kept in these motors as they recirc the water when closed, if it has been removed, this will also cause overheat.
AnswerID:
279728