Replacing oil lines

[u242447]

How tough is it replacing the Oil Line from Thermostat to Engine Oil Line and what size is the fittings 30mm and 36mm? I ordered two one from the oil tank to the oil T-stat and from the engine to the oil T-stat Thanks for all the help

[schumicat]

I replaced those lines last year and it is not a hard job. if you haven't removed the lines in 10+ years they can be very hard to remove; it was a 2 man job first time I removed that engine/thermostat line (one holding fixed line with a big ass crescent wrench and the other holding the oil line wrench and whacking it with a mini sledgehammer to turn it). i believe the big fittings are 36mm and the host sells a special wrench for them.

[boyt911sc]

Originally Posted by u242447

How tough is it replacing the Oil Line from Thermostat to Engine Oil Line and what size is the fittings 30mm and 36mm? I ordered two one from the oil tank to the oil T-stat and from the engine to the oil T-stat Thanks for all the help

The removal of oil lines from the auxiliary thermostat is not difficult if you have the right tools, patience, technique, and set-up. If a 70 years old man, who weighs 135 lb. soaked and wet, with a bad back and a bum knee, could handle the removal of the auxiliary thermostats from the oil lines with ease and success, any able bodied person would find it more easier.

Use the correct tools and set-up, penetrating oil and heat cycle, patience and do not force it or it would break. All you need is to disturb or move the big nut just a hairline initially and it would get loose next.

Old oil line removed and installed new oil line in preparation for an SSI:


Some of the auxiliary thermostats:


Tony

[emac]

Tony you me proud. I'm only 63 and changed rear shocks last week. Quite sore but worth the effort. And the kids call us old. If they only know what we forgot!!
Ernie 81sc

[u242447]

Schumicat and Tony thanks for the advise I'm going to give it a try on Saturday wish me luck!! and thanks again

[pete3799]

If they put up too much of a fight you can cut the nuts with a Dremmel (be careful not to get into the threads).
The thermostat is very expensive and you're replacing the lines anyway so......

[rusnak]

I used a bf crescent wrench and a bf pipe wrench, some Kroil and caveman grunt power. I was very lucky not to strip the aluminum threads. If I were to do it again, I'd use a bit of heat or cut the nut to weaken it first.

[JJ 911SC]

Originally Posted by pete3799

If they put up too much of a fight you can cut the nuts with a Dremmel (be careful not to get into the threads).
The thermostat is very expensive and you're replacing the lines anyway so......

2 years ago I could not get the the thermostat out in-situ so I end up removing the whole lines (from back to front) in one piece, a job and half even with a lift. Once on the ground I was able to removed the 2 rear lines from the thermostat but not the front one even though they leaked This year I remove it again and cut the 2 front nuts with a Dremel and got a couple of the Elephant nuts slip on replacement. At $50 a nut I sure hope it will take care of my leaks...

[u242447]

What a job! but I got them in I changed out three hoses no leaks!!

[u242447]

[JJ 911SC]

Fix That For You, less dripping that way

Originally Posted by u242447

What a job! but I got them in I changed out three hoses no leaks!!