Mix n Match oil coolers... Thread pitch on lines?
 

Quick question... Are the thread pitches for the Turbo II, N/A 2nd gen, GSL-SE and Pre '83 oil coolers the same?

Lookin to get some line sometime soon... Going into an 85 12A in the GSL-SE location... Probably gonna be using that same bracket, so I'm probably going to get GSL-SE or 2nd Gen lines... Whichever is longer... Or I could get some custom made if I could find a hydraulics shop around here...

Yeah man. All the same thread pitch. it's a standard pipe thread the only thing not metric.

They are NOT pipe thread. They are metric machine thread. All the coolers have the same dia fittings IIRC its 16mm. Rear housing on 12A's are 18mm, front cover is 16mm.

Some useful info here.
http://www.mazdatrix.com/b6.htm

I think you are correct, Carl.

Well after re-reading mazdatrix's page it looks like this

Front Cover (all) and 74-85 Oil Cooler = 16mm

Rear Housing of Engine also fits 86-92 Coolers = 18mm

so you can not use first gen lines on a second gen cooler? Correct?

Well the fittings are also in a different place on an FC cooler.

The second gen has them in the end. Correct? What has to be done to use a second gen cooler? Just use the lines that come with it?


By the Way I just hit 100 posts.

One is on the end like an FB cooler, but the other is on the top of the end tank. I bought the metric to AN adapters and made my own lines and custom frame mount.

i bought new lines for my 12a but then realized the cooler wasnt original. so im looking for a new one, i know a guy that has a second gen cooler, are my mazdatrix SS lines going to work or do i have to get different ones

I dont think theyll work sorry. Find a cooler that fits your lines. What cooler do you have now? And what radiator? Is it 79-82 style? or 84-85 GSL-SE style?

i have a weird cooler that i have no idea where it came from, i want to get an original for the 79-82. i spent 100 bucks on the hoses and now need one to plug them into