80 radiator replacement: what else should I replace?

[Hulk]

Parts to order

• Toyota Radiator Cap (Toyota OEM PN: 16401-15210)
• Toyota Upper Hose (Toyota OEM PN: 16571-66030)
• Toyota Lower Hose1 (Toyota OEM PN: 16573-66010)
• Toyota Lower Hose2 (Toyota OEM PN: 16572-66021)
• Toyota Heater Control Valve (Toyota OEM PN: 87240-60140)
• CRC Thermocure Coolant System Rust Remover
• Foam around the radiator -- need to figure out what to use

Items to consider

• 1FZ-FE Engine Little Hose Kit - available from Wit's End
• Water Pump (Toyota OEM PN:16100-69325) - mine is working fine with no leaks but should I replace anyway?
• Toyota Thermostat (Toyota PN: 90916-03117)
• Toyota Thermostat O-Ring (Toyota OEM PN: 16346-66020)
• Connections to the rear heater under the cab - need to check these (I still have the rear heater)

Not going to touch

• oil pump gasket - not leaking
• front main seal - not leaking
• oil pump o ring
• oil pump torx head screw replacements

 

[Corbet]

Yes, replace the water pump as the impeller is probably corroded inside. Do you know it’s age?

 

[Hulk]

Might be 2011. That's when I replaced the engine. Not sure if we did a water pump or not.

 

[Corbet]

Might be 2011. That's when I replaced the engine. Not sure if we did a water pump or not.

Then I would replace.

 

[Inukshuk]

This thread is going to come in handy the next couple days.

 

[KC Masterpiece]

This thread is going to come in handy the next couple days.

When you reinstall put foam tape in those gaps. Helps with airflow.

I put in the cheaper koyo radiator off amazing 4 years ago. Running strong and I saw cooler temps than stock.

 

[IoN6]

I would also replace your fan, if you have not done so already/recently.

 

[Inukshuk]

I would also replace your fan, if you have not done so already/recently.

Blades and clutch, and why?

I happen to have the blade and blue fan clutch off LongCruiser I was planning to use. I have no idea how old the blades are. I replaced the silicone oil in my current fan clutch some years ago with higher weight.

 

[IoN6]

Blades and clutch, and why?

I happen to have the blade and blue fan clutch off LongCruiser I was planning to use. I have no idea how old the blades are. I replaced the silicone oil in my current fan clutch some years ago with higher weight.

I did not have cooling problems when I did my radiator, just age. Figured if the plastic on the tank is starting to get old and brittle the fan blades are too. Seemed like cheap peace of mind to not have a -then- 25 year old fan blade exploding and making me do the job all over again.

 

[subzali]

Blades and clutch, and why?

I happen to have the blade and blue fan clutch off LongCruiser I was planning to use. I have no idea how old the blades are. I replaced the silicone oil in my current fan clutch some years ago with higher weight.

I might be mistake, but I may have read on mud that 93-94 came with a black hub clutch that is stronger than the blue hub? Would have to read up on that again though.

 

[Inukshuk]

I might be mistake, but I may have read on mud that 93-94 came with a black hub clutch that is stronger than the blue hub? Would have to read up on that again though.

Please look. Never heard this. But 93-94's are special.

 

[subzali]

Seems to be the case. Example post from Kevin:

Early 1FZ Fan Clutch (Black/Blue Hub)

This thread is started in an attempt to separate old fan clutch questions from Landtank's Blue Fan Clutch thread which discusses and instructs how to set up the new part Toyota replacement fan clutch. For first timers to this thread, this is an attempt to discuss the possibility of revamping...

forum.ih8mud.com

 

[Inukshuk]

It’s a good day when you have a radiator, upper radiator hose, one of two lower radiator hoses, pesky heater hose, and a bunch of other firewall hoses in your parts stash. For those with an eagle eye, you will spot that I have both lower radiator hoses. However, one of them is used, but in great shape. I’ll see if I can pick a new one up at Napa. If I can get one made by Continental or Gates, it’ll be good. NAPA also sells the heater control valve.

 

[Inukshuk]

To close out my posts above, I replaced the radiator with the spare I bought from @mikedrom last summer. It was Toyota / Lexus AL from his 1996 LX450 pulled for his LS swap. In my parts stash I also had two of the three radiator hoses, most of the heater hoses - including a silicone PHH and valve hoses kit and a OE Toyota brass T with three hoses kit. Final radiator hose is Gate from NAPA my local shop had in stock. I disassembled and did the heater hoses (drained the block too), then waited to re-install until my new Aisin water pump and thermostat (both with gaskets) and new fan blade (a good suggestion by @IoN6) arrived from Rock Auto. I also put on the blue fan clutch from LongCruiser's LS swap and replaced 5 of the 7 transmission cooler hoses (using Gate 3/8 400 PSI transmission cooler hose I still had from last year's Advance Auto store closing). Add to that a nice radiator shroud I hoarded from @Corbet last year to replace my original one that had zip-tie and epoxy repairs - worked fine but looked not so great. Filled it all with ordinary green coolant just like I have been using 20+ years. Final touch was a radiator nipple protector.



Finished around 5 PM Thursday and was on my way to Utah by 7PM. Made it to Utah and back with no leaks!

I ordered the small misc coolant hoses that go in a few spots at the engine front. Those are easy to swap.

 

[Hulk]

Final touch was a radiator nipple protector.

I hesitate to ask about this, but what part do you install for this?

This is what I get when I google nipple protectors:

 

[Inukshuk]

'93-'97 Toyota Land Cruiser, '95-'97 Lexus LX450 Radiator Top Nipple Guard FZJ80 | eBay

This is a nipple guard for the 1FZ-FE FZJ80 Land Cruiser/LX450. Got a new radiator?. Protect it! Got an old radiator?. Give her a follow! Interested in more 80-Series products?. -Product not necessary for all steel/copper/aluminum radiators.

www.ebay.com

.
and the sales model: Aloha Jen!
.

 

[Corbet]

@Hulk, when googling nipple protectors do you use your own device or search on the wife's?

 

[Hulk]

As long as I don't use my work-provided laptop, I'm in the clear.