We had a thread awhile back about various block heaters (https://forum.ih8mud.com/79-95-toyo...stions-freeze-plug-engine-block-heater-2.html), and in my last post I promised I would be installing one now that my engine was all apart. I finally got it installed the other day, thought I'd post some info and pics.
I found this document online that had install info: http://manage.toyotaap.com/docs/TOYOTA060208.pdf
The last time I bought one, I was able to get it from Toyota as an OEM accessory. When I was ordering a bunch of stuff from beno @ American Toyota, he couldn't bring up the number in his system. So I did some Googling, found that Jegs sells one that looks exactly like the OEM unit for 40mm freeze plugs, recommended for Toyota engines:
JEGS Performance Products 51129 JEGS Freeze Plug / Core Plug Block Heaters
According to the Toyota doc, the plug should go in the front-most hole on the right side of the engine, with the heater element either in a 6 or 12 o'clock orientation. They also recommend FIPG on the O-ring, and I happened to have a tube of the exact stuff referenced, sitting on my bench.
I had already pulled all my freeze plugs, so this install was very easy. Just clean up the hole with some 400-grit sandpaper, smear some FIPG on the O-ring, and insert. There's a pair of "wings" on the back side that spread out in the coolant passage, kind of like a toggle bolt, to hold the plug in. Tighten the screw, and you're all done.
With the cord installed:
Not sure how hard this would be to do with the engine in the truck. That plug is kinda hidden by the intake.
Additional note: the brass fitting you see below the heater is the port I installed for an AutoMeter mechanical oil pressure gauge. This port is already threaded but plugged by the factory, but it's not 1/8" NPT. It's relatively easy to convert it, you just run a greased tap into the hole to open it up a little, then blow any chips out (I don't recommend doing this unless you have the timing cover off). I'll post an entire thread on this later, I'm also adding a mechanical temp gauge.
I found this document online that had install info: http://manage.toyotaap.com/docs/TOYOTA060208.pdf
The last time I bought one, I was able to get it from Toyota as an OEM accessory. When I was ordering a bunch of stuff from beno @ American Toyota, he couldn't bring up the number in his system. So I did some Googling, found that Jegs sells one that looks exactly like the OEM unit for 40mm freeze plugs, recommended for Toyota engines:
JEGS Performance Products 51129 JEGS Freeze Plug / Core Plug Block Heaters
According to the Toyota doc, the plug should go in the front-most hole on the right side of the engine, with the heater element either in a 6 or 12 o'clock orientation. They also recommend FIPG on the O-ring, and I happened to have a tube of the exact stuff referenced, sitting on my bench.
I had already pulled all my freeze plugs, so this install was very easy. Just clean up the hole with some 400-grit sandpaper, smear some FIPG on the O-ring, and insert. There's a pair of "wings" on the back side that spread out in the coolant passage, kind of like a toggle bolt, to hold the plug in. Tighten the screw, and you're all done.
With the cord installed:
Not sure how hard this would be to do with the engine in the truck. That plug is kinda hidden by the intake.
Additional note: the brass fitting you see below the heater is the port I installed for an AutoMeter mechanical oil pressure gauge. This port is already threaded but plugged by the factory, but it's not 1/8" NPT. It's relatively easy to convert it, you just run a greased tap into the hole to open it up a little, then blow any chips out (I don't recommend doing this unless you have the timing cover off). I'll post an entire thread on this later, I'm also adding a mechanical temp gauge.