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Author Subject: Oil cooler sandwich
cosmic spanner

Moral objector

Location: North London

Registered: 11 Oct 2004

Posts: 10,399

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Post #1
I have a couple of questions regarding oil coolers - if anybody can help please?

1) Does it matter which way round the sandwich plate points? I think I can get more room for oil hose access if it's round at 45 degrees or straight up than I can with it pointing straight down. Does this matter? Unsure

2) the replacement thread I bought (to go into the block, that the sandwich plate bolt then attaches to) doesn't thread in as far as the old one did. How much is "enough"?

Thanks Thumbs up

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Posted 3rd Nov 2009 at 06:39
rich_w

Seasoned Pro

Location: Havant, Hampshire

Registered: 29 Jul 2004

Posts: 5,412

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Post #2
1. The angle which the hose unions face doesn't matter.

2. I wouldn't be comfortable with less than 0.5D [diameter] of thread contact. I think it's an M18 or M20 thread, so I would look for 9-10mm to be inside the block.

Is it a pure track car? If not I would keep the OEM oil/water heat exchanger, in addition to having the air/oil cooler, as I have done.

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Posted 3rd Nov 2009 at 12:44
rikky 🦔

Location: cheshire

Registered: 28 Feb 2004

Posts: 26,793

Status: Offline

Post #3
wondered the same about the angles too Smile

interesting you say about keeping the heat exchanger, how long does it take the oil to get up to temp without it?

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Posted 3rd Nov 2009 at 13:29
fletch

Track Head

Location: The nearest Shell garage

Registered: 12 Jun 2004

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Post #4
Sounds like youre binning the OEM heat exchanger? As said would be easier, and more beneficial to keep it to be honest.

There is room to fit both quite easily.

(Unless you have some funky setup with your new rad/condensor and are tight on space?)
Posted 3rd Nov 2009 at 14:54
smighall

Smeg-all

Location: b*tching and Whinging

Registered: 03 Mar 2005

Posts: 10,012

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Post #5
And if you are tight on space use a renault oil filter, as they're half the size of the 306 one Wink

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Posted 3rd Nov 2009 at 22:06
ben306

Seasoned Pro

Location: North West

Registered: 17 Jan 2006

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Post #6
Ive kept the standand heater exchange in addition to the air oil cooler.

And as said, angles doesnt mantter

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Posted 3rd Nov 2009 at 22:19
welshpug!

Capt Pedantic

Location: Bigend, Wales.

Registered: 27 Mar 2007

Posts: 25,817

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Post #7
I've seen both used on CUP and R2 spec 106's and C2's, i.e standard heat exchanger and additional oil cooler, its in the official build books for them too.

that's 200-225+ bhp N/A 1600 TU's Smile


I wasn't sure if there was quite enough space, but from Ben's comment there must be, is it a standard size filter?

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Posted 3rd Nov 2009 at 22:32
ben306

Seasoned Pro

Location: North West

Registered: 17 Jan 2006

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Post #8
yeah I use a standard filter, not had a problem

Edit, found an old pic, not with the filter on but you can see theres plenty of room

________________________________________

My 306 Rallye Project Thread

Few recent Youtube track videos, more on my channel
Pair of Rallye's doing a few laps of Anglesey


Lap of Anglesey Coastal

3 sisters circuit

Few laps at Blyton
Posted 3rd Nov 2009 at 22:35

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