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Time to check your nuts! With the engine off, whack the handbrake on and put it in fifth gear. Get under your Patrol, undo the four bash plate nuts and and use a long breaker bar and socket to check...

Years ago my Old Trol presented such weird noises. It turned out to be the hand brake not releasing, properly when the nose was pointed slightly down hill. Fixed itself eventually. I am a little...

I wonder if it is a dry or old spigot bearing. Seeing as it is the same in all gears it does point to the clutch. A long long time ago I had a couple of brand new thrust bearings from Repco fail. it...

If you have a stripped or cross-thead spark plug hole., this thread might help....

Check the battery voltage when starting. It could be an open circuit cell.

Check the lug at the solenoid. Sometimes they look solid but can have carbon build up, especially if it is an aftermarket spade lug. Use a pair of pliers to tighten it. If that is ok, sometimes a a...

Definitely made a difference to my Trol. The 2nd stage butterfly wears a groove in the carby bore. When it is cold the bore shrinks onto the butterfly. The couple of minutes sitting on a warm engine...

Do you mean the tin shroud and the corrugated hose are missing? When I first had the headers fitted, I used a bit of exhaust pipe welded to a u bolt to anchor the hose to a pipe.

I eventually...

Thanks to this thread, and helpful posts from Mudnut and Dom, I've got Dad's ST30 Patrol running sweetly again.

The sensors inside the air cleaner control the warm air intake, and had been blocked...

Follow the hose under the filter housing. If it is only missing at idle check for a vacuum leak. If you remove the ball bearing in the pre heat, you will hear the flap open when you put on and pop...

Thank you all for this very useful thread on the RB30S.
My personal vehicle is a TD42, however I've inherited Dad's ST30, which is pretty much in original factory condition.
Right now I'm in the...

I would switch the White/red with the blue wire in the above diagram. That way the the condenser fan relay only operates and switches the fan an on when either the thermo switch or the pressure...

The Manual and Auto Tranny Rads are different.

The "Thermo Switch" is a sensor on the lower RH side of both the Manual or Auto Rads

The "Thermo Switch A/T" is a sensor on the lower LH side of...

Interesting I had a quick look at the factory manual download, but Page 12-28 of the Haynes download is the only diagram I can find that mentions a condensor fan. 12-30 has an aspirator fan.

It...

Yeah same here , the fuel needle follows the speedo needle , the more one goes up the other goes down .
I can't remember what we got out of the MAV but your consumption is a bit on the high side ,...