Builds 1987 fj60 12h-t h55f conversion (2 Viewers)

[OGBeno]

Nice work Roma.

 

[roma042987]

Nice work Roma.

thanks man!

 

[roma042987]

Came home after work and was pleased to see my new rings arrived from kangaroo land. I was curious to see what brand they would be. The made in Japan label eases my apprehensions a bit about them being aftermarket.

 

[roma042987]

First piece of the puzzle back in place.

Started installing the freeze plugs this evening. The lip of the plug and each corresponding hole got a light coat of hondabond.

 

[roma042987]

The water jacket behind the oil cooler has 6 ports connecting it to the water jacket around the cylinders. The first plug is sealed. The next two plugs have 1/2 holes and the next two have roughly 5/8 holes. The last hole remains open with no plug. Using the old plugs as a guide I drilled holes in the new ones and knocked them into place.

 

[boozewz]

Super clean work

 

[roma042987]

Super clean work

Thank you.

I'm super anxious to get some more free time to start assembling the rotating assembly. I got the wrist pins in the freezer and plan to heat up the pistons with a heat gun to fit them to the rods. Service manual says to heat the pistons to 140 degrees and the pins will go in by hand . I'm think freezing the pins will just make it a bit easier.

 

[OGBeno]

Yup. Just like bearing races into assemblies.

 

[roma042987]

Piston oil squirters installed and torqued to a few additional ft lbs. for safety (30lbs). I cleaned the main oil galley as well as these bolts and the nozzles themselves. The bolts appear to have a spring loaded check valve in them of sorts which you can somewhat see in this photo. New oil galley plugs from Toyota installed with a bit of sealant.

 

[roma042987]

Here are the old acl brand cam bearings I removed from the block. Look pretty rough I'm surprised the cam shaft was in perfect shape.

This was my first prototype of a cam bearing install tool. I used 5/8 threaded rod which proved to be a bit too large for my assortment of home made dies. (Old bearing races)

 

[roma042987]

New bearings

Final version of my home made cam bearing tool. 1/2 threaded rod I welded a nut on one end instead of the handle. Some scrap rear outer pinion bearing races fit the cam bearings perfect and I welded a 7/8 washer onto the races. I used a wheel stud install tool and then a nut on the other end. The wheel stud tool keeps the driver (bearing race)from spinning on the bearing as it's being pulled into place.

 

[roma042987]

I also drilled a hole in the threaded rod and locked it with a cotter pin. The cotter pin was shredded by the nut trying to back off so I ended up using an Allen key

 

[roma042987]

Cam bearings installed. It's paramount all of the bearings are clocked to line up with the corresponding oil feed holes in the block.

 

[OGBeno]

Very nice Roma. Documentation is solid.

 

[roma042987]

Very nice Roma. Documentation is solid.

Thanks man, If my new 12ht's arrive I may not get the pleasure of ever seeing this one running and it will find its way to the classifieds so, i'm keeping close records of everything I'm doing to it. Not cutting any corners or sparing any expense on this rebuild whether it will end up in my rig or not.

 

[roma042987]

Had to pull the block off the stand to install the rear cam bearing, buttoned it up with the 55mm rear cam plug.

Front and rear oil galley plugs installed, I replated these and put a light coat of hondabond on the threads to seal them up.

In the picture you can see the front oil galley freeze plug, I also replaced the one on the rear. I really wanted to thread these but decided there wouldn't be sufficient thread engagement without boring the hole significantly larger since the hole is chamfered and actually counter bored for the plug.

 

[roma042987]

Got the main caps and bolts cleaned up in the parts washer and cleaned the old bearings for a good inspection. No red flags here but sure would be nice to know how many miles these have been since they were installed

 

[roma042987]

New main bearings .25 over

Green plastigauge. Note one side of the packaging is inches and the other is millimeters

 

[roma042987]

The packaging is cut and obviously the goal is to achieve the "standard" limit in the manual. Seven inch or so long pieces are cut and placed on the crank shaft before the journals are installed (underneath each of the seven main caps).

 

[roma042987]

The main caps are all installed with a light coat of oil on the threads of the bolts and torqued to a total of 100lbs. I do this in four steps 25, 50, 75, and finally 100lbs.

Then all the caps come back off and the oil clearance is measured...and boy am I happy with the results!