gearbox oil cooling
hi,
there's been much talk across the various forums of the gearbox oil getting too hot, leading to (amongst other reasons) outboard brake conversions
the SZ has a coolant system for the gearbox oil,
is this a system that can be easily fitted to a gtv/75?
where does the system pick up/dump back the oil?
are these castings/holes present on all transaxles?
is some sort of pump needed to circulate the oil?
the callaway turbo prototype rebuild shows pics of a coolant system being added but no real detail about it.
anyone done it/know how etc......?
simon
there's been much talk across the various forums of the gearbox oil getting too hot, leading to (amongst other reasons) outboard brake conversions
the SZ has a coolant system for the gearbox oil,
is this a system that can be easily fitted to a gtv/75?
where does the system pick up/dump back the oil?
are these castings/holes present on all transaxles?
is some sort of pump needed to circulate the oil?
the callaway turbo prototype rebuild shows pics of a coolant system being added but no real detail about it.
anyone done it/know how etc......?
simon
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- transaxle cooling.jpg (21.78 KiB) Viewed 11908 times
Alfa 75 2.5V6
Alfasud 1.5SC
Alfasud 1.5SC
I've seen this on a racer...
They'd connected fittings to both the drain and refill plugs in the transaxle, ran pipes across to the oposite side of the car (away from hot exhaust), where they went through an oil cooler radiator mounted to catch the underbody air flow. The pipe from the "drain" plug had a small eletric pump fitted, forcing the oil through the radiator, the return of cooled oil squirted back into the "refill" plug on the transaxle. I don't think it was a pressurised system.
Looked pretty straighforward, just a small volume, low pressure pump, some pipes & fittings plus an oil cooler rad with a few brackets.
They'd connected fittings to both the drain and refill plugs in the transaxle, ran pipes across to the oposite side of the car (away from hot exhaust), where they went through an oil cooler radiator mounted to catch the underbody air flow. The pipe from the "drain" plug had a small eletric pump fitted, forcing the oil through the radiator, the return of cooled oil squirted back into the "refill" plug on the transaxle. I don't think it was a pressurised system.
Looked pretty straighforward, just a small volume, low pressure pump, some pipes & fittings plus an oil cooler rad with a few brackets.
83' GTV6, 3.0 24v supercharged
Autodelta actually built a mini pump that fitted into the speedo drive and was driven off the mainshaft to pump the oil around-They also had the return above the gear cluster on a spraybar.
Barry
Barry
French cars are shit and shit expensive to service and bloody awful and unreliable and expensive and friends don't let friends drive french cars and you wait years for parts.
Joey,
Either beadblast or chemically strip it - Alkaline based dip or hot water clean. Then paint with VHT or similar spray can.
I am doing this at the moment, the box is being rebuilt, its cleaned already and I will be painting it this weekend, then ready to re-assemble. I also have the oil pump and the fittings for the oil cooler setup. Ready to rock an roll.
Either beadblast or chemically strip it - Alkaline based dip or hot water clean. Then paint with VHT or similar spray can.
I am doing this at the moment, the box is being rebuilt, its cleaned already and I will be painting it this weekend, then ready to re-assemble. I also have the oil pump and the fittings for the oil cooler setup. Ready to rock an roll.
PanchoRama
From the great master Del Compo "so, wat you wan doin?"
High Five. Sexy Time. You Lose
From the great master Del Compo "so, wat you wan doin?"
High Five. Sexy Time. You Lose
Hi Jarle,
I am yet to get a pic of it, basically the casing has two AN6 connectors, one on one side and one on the other, the oil goes out the box and gets sucked into the pump, from there it flos into the oil cooler and from ther back to the box, I am goignto hook the pump up to a temp sensor so when it hits a certain temp it turns on and starts the cooling.....then when temps come down it stops.....pics soon.
I am yet to get a pic of it, basically the casing has two AN6 connectors, one on one side and one on the other, the oil goes out the box and gets sucked into the pump, from there it flos into the oil cooler and from ther back to the box, I am goignto hook the pump up to a temp sensor so when it hits a certain temp it turns on and starts the cooling.....then when temps come down it stops.....pics soon.
PanchoRama
From the great master Del Compo "so, wat you wan doin?"
High Five. Sexy Time. You Lose
From the great master Del Compo "so, wat you wan doin?"
High Five. Sexy Time. You Lose
I got a trans-cooling system from a Nissan s14 lying around the garage, maybe I should start playing around with it.
Hoses, pump and cooler.
Hoses, pump and cooler.
Mats Strandberg
-Scuderia Rosso- Now burned to the ground...
-onemanracing.com-
-Strandberg.photography-
GTV 2000 -77 - Died in the fire.
155 V6 Sport -96 - Sold!
-Scuderia Rosso- Now burned to the ground...
-onemanracing.com-
-Strandberg.photography-
GTV 2000 -77 - Died in the fire.
155 V6 Sport -96 - Sold!
The car isnt even running yet, and probably wont be for about 2 years, considering how long its taking to do things. My 24v 3L engine is still in peices...
The pump to be used will be a selespeed pump. I will be putting a new temp sensor in, then run the switch off that. Temp to turn it on and off may be manual or automated, hopefully automated, hey maybe I can get the Autronic SM2 ECU to turn the pump on and off via one of its inputs ?
The pump to be used will be a selespeed pump. I will be putting a new temp sensor in, then run the switch off that. Temp to turn it on and off may be manual or automated, hopefully automated, hey maybe I can get the Autronic SM2 ECU to turn the pump on and off via one of its inputs ?
PanchoRama
From the great master Del Compo "so, wat you wan doin?"
High Five. Sexy Time. You Lose
From the great master Del Compo "so, wat you wan doin?"
High Five. Sexy Time. You Lose
- Maurizio
- Verde
- Posts: 680
- Joined: Wed Dec 01, 2004 4:49 am
- Location: the Netherlands, 153.1km from the N'ring :-)
A low budget solution: a fuel pump.
There is someone her in the neighborhood who owned a 2.8 gleich.
On that car the gearbox oil was pumped around by a fuel pump.
The only thing it didn't have was a thermostat to activate the pump.
And I would like to see some sort of a filter in the lines.
There is someone her in the neighborhood who owned a 2.8 gleich.
On that car the gearbox oil was pumped around by a fuel pump.
The only thing it didn't have was a thermostat to activate the pump.
And I would like to see some sort of a filter in the lines.
Last edited by Maurizio on Thu Mar 10, 2005 2:53 am, edited 1 time in total.
Banned.. ? Daily donky.. ==> BMW 325d
E36M3 (3.0) Ringtool ==> definitely BANNED!
AR 75 TS Ringtool '90, AR Spider 2000 veloce '79
E36M3 (3.0) Ringtool ==> definitely BANNED!
AR 75 TS Ringtool '90, AR Spider 2000 veloce '79
Heh, and something like 10 amps drawn by the pump... No thanks.
Why not just buy a simple displacement pump? There are loads of cars that use them, must be available as OEM parts.
Why not just buy a simple displacement pump? There are loads of cars that use them, must be available as OEM parts.
Mats Strandberg
-Scuderia Rosso- Now burned to the ground...
-onemanracing.com-
-Strandberg.photography-
GTV 2000 -77 - Died in the fire.
155 V6 Sport -96 - Sold!
-Scuderia Rosso- Now burned to the ground...
-onemanracing.com-
-Strandberg.photography-
GTV 2000 -77 - Died in the fire.
155 V6 Sport -96 - Sold!