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Oil cooler or not
Werner Van Loock - 8/12/09 at 03:16 PM

I've bought a second hand shortened sump for my 4age, but it hasn't got a oil return hole for the oil cooler. As my angine currently has a takeoff plate between the oil filter and block, but the return is to the sump.

So do I buy a takeoff plate with supply and return or do remove the cooler.

Don't know if I really need it, I do a trackday occasionally.

And after the rebuild of the engine I plan on using the castrol Edge 10W60 full synthetic oil wich can withstand high temperatures.


Mr Whippy - 8/12/09 at 03:24 PM

tbh if it was my engine, I'd probably put the return in the rocker cover so it poured all over the cam gear rather than just into the sump


tomgregory2000 - 8/12/09 at 03:29 PM

then you would have too much oil on the rocker cover as it could not return to the sump quickly enough and overflow out of the breather.


britishtrident - 8/12/09 at 03:31 PM

Oil coolers don't normally return to the sump -- they are usual plumbed in between the oil filter and the feed to the main oil gallery.

Sump -> Pump -> Filter -> Cooler -> Main Oil Gallery -> Bearings -> Sump.

or

Sump -> Pump -> Pressure Relief Valve - >Sump


owelly - 8/12/09 at 03:48 PM

I can't see how the cooler works if it just returns to the sump. How does it hold oil pressure?? The oil will be spilling through the cooler and into the sump rather than squirting through the galleries?


boggle - 8/12/09 at 04:02 PM

i have an adaptor fitted between my oil pump and filter for my cooler....


turbodisplay - 8/12/09 at 04:13 PM

def keep the oil cooler, ive been in a car that ran out of coolant due to a leak.
Was completly dry when discovered.
Engine was on motorway doing a constant high speed, ran for years no problem, i believe oil cooler was the reason.
Darren


Werner Van Loock - 8/12/09 at 06:42 PM

quote:
Originally posted by owelly
I can't see how the cooler works if it just returns to the sump. How does it hold oil pressure?? The oil will be spilling through the cooler and into the sump rather than squirting through the galleries?


Here's how mine looks like (left one)


and this is how the system is set up:



So does the takeoff also have a relief valve? one set a bit lower or the same as the main relief valve.

It is low pressure as it has regular oil hose with jubilee clips rather then jic6 couplings or something similar. Wich I need if I use a takeoff plate with both supply and return, will also mean that I need a different oil cooler as it is also equipped with push on fittings.


bi22le - 8/12/09 at 07:29 PM

I am currently in the process of getting a 4age Striker from a respected 4age man on here (bimbleuk). It has an oil to water exchange between the filter and block. Its from a Diesal Sierra I think. He has done many track days hill climbs with this set up with no problems (or so he says!). It has no oil rad just a water rad and Accusump.
Different ways to skin the same cat!?


Canada EH! - 8/12/09 at 07:29 PM

Toyota's are different, the 4AGE has a thermostate built into the takeoff for the oil filter, when the oil gets too hot some oil is sent to the cooler then back to the sump. Like the 50's were bypass oil was sent to the filter then back to the sump. The Toyota Corolla GTS (North America) had this system, I took the whole system off the GTS Donor.


Canada EH! - 8/12/09 at 07:34 PM

Have a look a fleabay US, you might find a stock oil cooler they are about 6" square about an inch thick, they do seem to use low pressure hose and clamps, I don't think they use high pressure in the system. The coolers are found on RWD North American Corolla GTS.


Werner Van Loock - 8/12/09 at 07:47 PM

quote:
Originally posted by Canada EH!
Have a look a fleabay US, you might find a stock oil cooler they are about 6" square about an inch thick, they do seem to use low pressure hose and clamps, I don't think they use high pressure in the system. The coolers are found on RWD North American Corolla GTS.


My car is equipped with oil cooler so no need to buy one, question is do I keep it, and if I keep it, how do I plumb it into the system as I have no return to the (new)sump available anymore.


Ben_Copeland - 8/12/09 at 08:01 PM

TIG weld a return connection back into the sump.

Or drill and tap one...???


Werner Van Loock - 8/12/09 at 08:04 PM

quote:
Originally posted by Ben_Copeland
TIG weld a return connection back into the sump.

Or drill and tap one...???


It's a alloy sump, so no welding for me, and the sides are too thin to tap.


Ben_Copeland - 8/12/09 at 08:18 PM

Could ask someone to weld a small alloy plate to the side, then tap that.

I'm sure theres a few people on here that could do it for beer tokens.


britishtrident - 9/12/09 at 08:47 AM

Bolt through tank fitting