Hi all, my 7 started leaking oil from the cooler line so I have decided to replace them. I have searched and found 2 threads listed below that mighe be helpful.
I just wanted to make sure I am going to order the right parts...

The problem im seeing is that in one thread it states https://www.rx7club.com/showthread.p...l+cooler+lines

"Oil Cooler: Front Cover is M16 x 1.5 — Rear of engine and both oil cooler are M18 x 1.5"

So this means that three of them are M18 and one is M16 correct?
But in the "Custom oil cooler lines part list" thread it states https://www.rx7club.com/showthread.p...l+cooler+lines

(3) -10 >16mm THD adaptors $9.50 per fitting =$28.50 PN#11901
(1) -10 >18mm THD adaptor $9.50 per fitting =$9.50
PN#11902
(3) Sealing washers $1.25 per fitting=$3.75
PN#41-6000-9956
(1) Sealing washers $1.25 per fitting=$1.25
Mazdatrix Total: $43.00

So this would mean 3 M16 and 1 M18 THD adapters...


So far im thinking I would need 4 sealing washers, 1 45 degree fitting, 3 90 degree fittings, 8 ft of -10 AN hose and the AN to THD adapters... Is this correct. If someone can help me out on this that would be great!!!!

 

Also, are THD fittings the same as NPT just metric... Anyone??? haha

 

I really don't know what is meant by THD other then perhaps "thread".

So you need 3 M18 x 1.5 (two oil cooler and one engine) and one M16 x 1.5 (front cover).

You need 3 sealing washers for the M18 (same as the stock copper crush washers on the banjo bolts) and one sealing washer for M16 (same as the stock fitting).

Additionally you need 3 90 degree -10 hose ends and one 45 degree -10 end, and about 8 feet of hose.

 

Eight feet?

 

Thanks!!!

 

Maybe a little less then 8 feet, but it's always nice to have some extra.