Cooling system nightmares behold

[M32H32is]

So,

If you know my plight, my HG recently blew after a stint of brief overheating. My overflow tank was full of scalding water & blew coolant until my radiator was empty.

Thinking my thermostat was clogged & knowing that was the easiest fix, I started there. This morning I finally got around to removing my thermostat. Well, I thought I was, however no thermostat was present! Yikes

The amount of rust in the housing is enough to make a grown man cry:

 

[M32H32is]

My heater lines are also rusted out. This damn engine refresh is getting expensive:

 

[OGBeno]

Welcome to Land Cruiser ownership.

 

[M32H32is]

Lol, thanks Beno!

Naturally I did what any Cruiserhead would do. I made a trip to Sears & got a few different wire brush tips for my trusty dremel, grabbed a case of Miller Light Thinking Fluid and went to work:

 

[george_tlc]

Welcome to lack of coolant/cooling system maintenance...

Good luck with the repair$

cheers,
george.

 

[FloridaCruiser813]

I had a lot of rust in my cooling system as well, I also suffered a HG failure. After my HG repair I bought a product called EVAPORUST from northern tool. its biodegradable and safe for all metals. I emailed the company back and forth a few times before i decided to fill my entire cooling system with evaporust. i drove the truck for a few weeks with nothing in the cooling system but evaporust. I live in Florida and i had a new fan clutch and all new hoses. The inside of my radiator is rust free now but that's the only part i can see the inside of since the HG repair. good luck!


,

 

[jonheld]

Those hard lines don't look too bad. You need to flush this system a bunch of times to get the crap out. After things start to run clear, you can start replacing parts like hoses and water pump, etc.

 

[M32H32is]

A little dremel action & it looks 100% better.

Question though, with that much pitting on the thermostat housing should I go ahead & replace the entire housing as PM?

 

[OGBeno]

16304-61030 is the lower housing....you might not like the price though.

Upper housing is disco city.

 

[scrowley]

Going off your pic I would think it will seal fine. You could prob. get it plained down at a machine shop also.

That sure was some rust in there. DAMN the PO. Mine had a tiny bit of rust but after flushing the system very well it was good as new.

 

[M32H32is]

Beno, PM me the price plz

 

[M32H32is]

That's not bad. How about all of the sensors on the top & bottom? I'm going to replace those as well...

 

[OGBeno]

PS sensor is discontinued (water temp switch for EFI).

DS sensor (water temp sensor for EFI) is still available.

The bimetal vacuum valve is available still.

 

[86tuning]

Going off your pic I would think it will seal fine. You could prob. get it planed down at a machine shop also.

A few minutes with a flat file and a bench vise and that surface will be flat as new. There is a trick to it, but not much different than using a wood plane on a piece of wood. Find a full size flat file and handle. Medium or fine will both work well.

 

[M32H32is]

Finly starting to get a little milkshake in my oil, and I cannot drain it where it sits. Suggestions??

 

[scrowley]

I was going to say belt sander at first but felt a bit ghetto. Haha. I do have a large belt sander mounted upside down in a crattle that I made. Works great for flattening stuff, sharpening stuff, and all kinds of other stuff.

A flat file would work great. Tools are only as good as the hands that hold them.

A few minutes with a flat file and a bench vise and that surface will be flat as new. There is a trick to it, but not much different than using a wood plane on a piece of wood. Find a full size flat file and handle. Medium or fine will both work well.