Odd Oil Cooler

[bob dunn]

Has anyone fitted one of these.

[bob dunn]

http://www.canleyclassics.com/images/diagrams/gt6mkiii/plate_w1.jpg

[bob dunn]

This looks so cool ,this has to happen!

[piman]

Hello Bob,

that illustration doesn't show a thermostat, I would suggest fitting one as well if you are going to fit that kit.

Alec

[Velocita Rosso]

Oil cooler? Quite common, had one on for years with sandwich plate and in line thermostat

[Paudman]

Had one fitted, waste of time, removed it again and sold it on eBay. Oil rarely got warm enough to open the thermostat.

[GT6 M]

thats no the point , its there IF its needed.
and some drivers will need it

butt, if yer just pottering aboot, then its a fair comment.

M

[bob dunn]

2hour trip to club meets down empty M6 and M4 from Galway to Dublin. Speed limit is 120 kpm .Then 2 to 4 hrs driving round the east coast .Then 2hours to get home . So 8hrs of high speed driving one day a month. Got the little adaptor "3/8 to 1/2" and got the oil pipes remade at my local hardware yard ,this stuff is std  for tractors.(old pipes were dated 1971).

[bob dunn]

I promise to report back if the oil in my 2000 powered 75 Spit is too cold . I fear that keeping cool may be a bit of a mission .

[piman]

Hello Bob,

I fitted an oil cooler and oil temperature gauge to my 2.5 P.I. saloon and the latter proved that the former was not needed even driving hard on the hottest day. Surely your Spitfire won't work the engine as hard as a saloon?

Alec

[andy thompson]

I have an oil temp gauge and a very variable climate here in Perth - cool in winter and very hot in summer. My track car only needs its oil cooler on the track - where its oil temp very rapidly climbs to 110 even with a 25 row cooler. I find constant use over 4000rpm is what makes oil hot - how many road cars regularly stay over 4000?

None of my pure road cars have a cooler - just good quality Penrite oil - 15/50 in winter and 15/60 in summer

[thebrookster]

Marginal on most Triumphs I suspect, though the 1500 really does need it!

My 1300 spitfire was fine without it, however I found the 1500 in standard tune often pushed the oil temps up, though it died before I got round to fitting one.

I have one fitted to the 2000 (Mk1) and I have noticed it gets used, but then I do push my cars!! Though maybe if I fitted a rev gauge to it I might not rev it as high…………………………

Phil

[bob dunn]

Are these oil coolers running under pressure or is it atmospheric . Mine will be taking oil from the top of the filter bowl .Has any one a video or photo of oil flow round a 6 cyl engine.

[esxefi]

most oil coolers are after the oil pump so run at system pressure,even with a thermostat fitted the entire system is under the same pressure but the oil takes the path of least resistance until the stat closes(reverse operation to that of the coolant system) the bypass so diverting oil to the radiator.

I expect you could have a system running at atmospheric but it would be a total loss system whereby it would bleed oil from the main gallery through the cooler and back into the sump,but why would you want to do that? I can't really see any benefits of it only downsides,if that is what you meant

[bob dunn]

http://www.canleyclassics.com/images/diagrams/gt6mkiii/plate_w1.jpg

[bob dunn]

The proposed layout is above ^ it was designed for a MK3 GT6 ,it takes oil from the top of the filter bowl runs it through the oil cooler and back into the side of the block ,to drain back into the sump. I got this " rare filter bowl new from Mike Dolphin and really like the look of it on the car .My problem is ,I don,t know how it works , or if it is just a bad idea or needs a little help.

[RobPearce]

Are you sure it returns the oil "to drain back into the sump"? I would expect it to feed the oil galleries. There looks to be a blanking plate under the filter housing that would prevent it feeding the galleries from the usual route. Where does the return pipe fit?

[Clive]

I think Rob has got it, if you don't have that blanking plate and just feed it into the sump the engine will have zero oil pressure.
If you want a cooler get a sandwich plate or spin-on adapter with the correct ports.

[esxefi]

doesn't the return go into the union below the oil pressure switch?

[RobPearce]

I don't think so. I think the oil pressure switch is before the filter. The most likely return point, I would think, would be the big hole above the filter that's normally sealed with a peened-over aluminium plug.

[bob dunn]

Yes I think that is back into the pressure system, will check.

[RobPearce]

I'm quite sure the hole I referred to is in the pressure system - in fact it's where the oil filter outlet joins the main gallery. I know this because the plug on my Vitesse's new block had been dissolved away by the dip that the machine shop used to clean the block up, so I had to replace it. That's why it seemed a good candidate

(I may have misspoken on the pressure switch - it's the plug below it that's pre-filter. However, both of those are small, whereas I think you want a nice high volume big hole for the oil cooler return.)

[bob dunn]

The BSP tapped hole above the pressure relief valve is common to the pressure relief valve . Therefore it is at is a pressure port . Earlier I thought that this was just vented to the sump .

[bob dunn]

http://www.triumphexp.com/phorum/read.php?8,944255

[bob dunn]

http://kaskastnersforum.yuku.com/reply/1381/External-oiling-system-GT6#.VdYpdvm-2So