Builds Salt wagon My first fj40 (build) (1 Viewer)

This site may earn a commission from merchant affiliate
links, including eBay, Amazon, Skimlinks, and others.

We got more engine torn down today with my hs class! we pulled the heads on the SBC. I was supprised not to see much of a ridge in the uper part of the cylenders. Additionally this engine sat outside for a week and I know it got rained on. I did have a tarp but it blew off in the storm. Looked like water got into one cylinder. I had dumped a bunch of marvel in it before I brought it to the school.
View attachment 3725518

The cylinder below is the one that water got in. and its only suspect in the bottom corner. Most of it I cant feel.
The upside is I cant find any indication that this engine has ever been rebuilt.
View attachment 3725519


Also Remember when I was looking for a temp sensor for the 2f and older gage in the fj40....
This was in the side of the SBC. I am wondering if the union gizmo is the same one I had to buy from a certain online land cruiser parts dealer that cost me 80$ The temp sensor looks Identical to a 1f sensor.
View attachment 3725521View attachment 3725522
Dang I need that adapter haha. I bet it’s the same as you ordered online. Just older
 
The Stout is bigger than the older Hiluxes and bigger than the first generation Tacoma. Not by much, but it is.
 
salt wagon updates - I found some radiator support rods that I may need to modify. So back story the original radiator support was a little too crusty to reuse for my taste. and I had a perfectly good one from a later 2f fj40 that I got with the engine. basically what I had is the 58-71 diagram below but Now I will have the other 71 - parts below.

I may need to figure a way to make 81 and 82 fit on my early land cruiser frame. we will see how it goes. worst thing that happens is cut and weld and modify in these parts.

112-40RadiatorSupport.gif


Some annoying news - I dont think I will get to my valve seals today as its pretty nasty weather today. lots and lots of rain today. so much so some roads are flooded. But I will have some more time during next week as my mother and father in law wont be in town anymore. I love them but my wife and I have had family in town for 3 weeks strait (my aunt, cousins and grandparents were here for a week and a half before My wifes family) after buying our house we have not had time to unpack yet. I love my family but we really need some down time to get settled in. some times it sucks to live in a vacation destination.
 
I touched one last week.... Didn't look very big to me....

View attachment 3726471
I love it! Would love to find one someday. My top 4 favorite toyotas go fj55, fj40, stout and fj45 truck. If I lived somwhere else I might have ended up with a stout. I use 4wd almost daily though.
 
Last edited:
No updates lately except terrible rain and weather. some flooding but nothing terrible. but my new front yard has lots of standing water right now not ideal conditions to do valve seals without a garage. Maybe this coming weekend I can change the valve seals out and plugs.

This was on the way home from work yesterday. It was not raining when I left. Again all this rain really shows I need to go ahead and replace that windshield gasket. leaks like a strainer. soft top is doing a great job though. Better than the hard top ever did.
IMG_8976 2.JPG


I am excited I did buy some super cool toyota open end wrenches from @dmamj to keep in the tool bag under the seat. Or maybe just keep in the tool box to use them. Ill post when they arrive.

I think I am going to buy the ktc wrench clip from @red66toy to complement these wrenches. Its the little stuff I tend to get nerdy about haha.
 
Last edited:
No updates lately except terrible rain and weather. some flooding but nothing terrible. but my new front yard has lots of standing water right now not ideal conditions to do valve seals without a garage. Maybe this coming weekend I can change the valve seals out and plugs.

This was on the way home from work yesterday. It was not raining when I left. Again all this rain really shows I need to go ahead and replace that windshield gasket. leaks like a strainer. soft top is doing a great job though. Better than the hard top ever did.
View attachment 3728415

I am excited I did buy some super cool toyota open end wrenches from @dmamj to keep in the tool bag under the seat. Or maybe just keep in the tool box to use them. Ill post when they arrive.

I think I am going to buy the ktc wrench clip from @red66toy to complement these wrenches. Its the little stuff I tend to get nerdy about haha.
True about the soft top.

A properly rebuilt and fitted hard top can be ok, but I just find it easier to keep a soft top in waterproof trim.
 
You can't loose much by trying some silicone on a leaky windshield gasket, as a temporary fix? Also, white caulking for the seem between the fiberglass and the driprail, which works for a while. I used caulking on the seem between the body and cowl, then painted it so that it isn't attracting attention; it's been sealed up for years now. I know that it is all ugly, but water intrusion provokes anxiety.
 
You can't loose much by trying some silicone on a leaky windshield gasket, as a temporary fix? Also, white caulking for the seem between the fiberglass and the driprail, which works for a while. I used caulking on the seem between the body and cowl, then painted it so that it isn't attracting attention; it's been sealed up for years now. I know that it is all ugly, but water intrusion provokes anxiety.
yeah I did try to silicon the gasket as a temporary fix. Water finds a way though haha. I can actually see it dripping through the gasket. I just got find a day to tackle the gasket where I know it may not rain for a few days and I have an extra set of hands so I don't break something. This rain is really annoying!
 
No updates lately except terrible rain and weather. some flooding but nothing terrible. but my new front yard has lots of standing water right now not ideal conditions to do valve seals without a garage. Maybe this coming weekend I can change the valve seals out and plugs.

This was on the way home from work yesterday. It was not raining when I left. Again all this rain really shows I need to go ahead and replace that windshield gasket. leaks like a strainer. soft top is doing a great job though. Better than the hard top ever did.
View attachment 3728415

I am excited I did buy some super cool toyota open end wrenches from @dmamj to keep in the tool bag under the seat. Or maybe just keep in the tool box to use them. Ill post when they arrive.

I think I am going to buy the ktc wrench clip from @red66toy to complement these wrenches. Its the little stuff I tend to get nerdy about haha.
I love this 40 gets used...rain or shine. Sand or pavement. It's how it's supposed to be.
 
I love this 40 gets used...rain or shine. Sand or pavement. It's how it's supposed to be.
Gotta drive them! Its a near perfect 4x4 for where i live, 25mph speed limit in town, 55mph out of town, 20 miles of beach to drive around on. another great place I have been to drive a 40 would be Taos NM. I really want to bring my 40 out there to drive around somday. Plus it would never rust being how dry it is there haha.
 
So My HS Automotive kids took the main bearing caps off the SBC that was in the fj40. these bearings were so bad. BAD I cannot beleive that it was running so well on this trash. Every bearing was bad but the last one had all kinds of wierd gouges and grooves in it. Ill take some more pictures this evening.

Every bearing has different gouges and grooves in it. I think the crank will need polishing too... Looks like I picked a great time to pull this ticking time bomb SBC. The Oil pressure of this sbc was about 35psi but it would fluctuate sometimes with lower psi like 20. also never trusted the aftermarket gage either.

IMG_9051.jpg

the front main below the gooves are super deep.
IMG_9050 2.jpg



IMG_9052.jpg
 
Last edited:
I have seen way worse than that. IMHO trash in the oil that didn't get filtered soon enough. Particle size matters - 2 or 3 small guys can stack up just right and make groves while larger ones get filtered out before they get there. I like magnets with the filter. Changing the oil/filter often is cheap insurance for damage control. I also like additives such as Prolong once everything is broken in and seated.
 
I have seen way worse than that. IMHO trash in the oil that didn't get filtered soon enough. Particle size matters - 2 or 3 small guys can stack up just right and make groves while larger ones get filtered out before they get there. I like magnets with the filter. Changing the oil/filter often is cheap insurance for damage control. I also like additives such as Prolong once everything is broken in and seated.
I have seen worse too. But I didnt think it would be as bad. For sure new bearings and polishing the crank are instore with this project. you can feel grooves in the crank too. I think this happened before me as I changed the oil pretty regular. but also you never know.
 
Keep in mind an sbc's oil pressure is low at operating temp. I think it will have around 15+- psi at idle. I've seen worse. What's in the pan?
 
Keep in mind an sbc's oil pressure is low at operating temp is low. I think it will have around 15+- psi at idle. I've seen worse. What's in the pan?
Some nasty oil haha. I have not inspected it yet. I am going through the steps with the students. It sat in my yard with a trashcan lid over the intake for 2 months and I know some water got down in the oil pan.

Yeah 15psi would be within what I was seeing on the gage.

I have seen worse too but its worse than I was expecting. cool thing Is I think these are the original bearings. Stamped on the inside gm 9 70 guessing for 1970? I could be wrong on that too though. I really have only gotten into a few engines this deep - with the 2f and a few 4cy toyota engines - 3rzfe and a few 22r and RE engines.
 
Last edited:
Scored bearing journals?

What about oil viscosity break-down? Could the oil simply not prevent metal-to-metal contact?

How about intrusion of unfiltered oil, as the crankshaft is really close to the sump, and bouncing around could get unfiltered oil in from the outside? Or, what about the bypass pressure relief valve in a typical oil filter? It will allow oil from the dirty side of the filter to make its way thru the system. When cold, the oil pressure gets restricted by the ability of the significantly more viscous oil to be pushed thru the filter media, so if the pump delivers oil like it should, the bypass in the filter opens up and there goes anything that was caught by the filter-media. So, in theory, maybe also in application, a 20-micron oil filter would be better for low-viscosity oils/temperatures, and a 30-micron filter for high-viscosity oils/temperatures. Also, the more surface area of filter media, on a bigger can / filter, is going to allow for more opportunity for oil to pass thru.

During the winter, the analog oil pressure gauge shows really lowish oil pressure. On a 2F, not F, it is measuring oil on the driver's side, post-filtering, as far as I can tell by the diagram. It seems that outside temperatures have more influence on the needle than what I installed in the crankcase, however, the Denso YZZD3 filter seems to run with the lowest oil pressure out of anything that I've installed.

Do you have measurements for the crank journals, any ovality?
 
Last edited:

Users who are viewing this thread

Back
Top Bottom