12H-t Rebuild out of a 1989 HJ61

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Joined
Feb 1, 2018
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993
Location
Utah
After a ton of contemplation I decided to slowly add my rebuild to hopefully help others as down the road. Full disclosure I am not a mechanic. I’m a Financial Analyst by trade. I did not complete this rebuild entirely on my own and it was only possible with help from many friends.

A little back story.

My HJ61 was purchased 5 years ago. Prior to that it was imported from Japan to Canada by an importer who turned around and sold it to a gentleman in Park City Utah around 2007(I’ll let you do the math there). After a few years living in the states it was sold back to the importer and shortly after sold to the Land Cruiser Heritage Musuem where it sat for a few years. The Museum acquired a cleaner example and sold to their director who is a good friend of mine. Around 2019 I was kicking around the idea of importing an hzj77 and was close to pulling the trigger when this friend offered to sell it to me. It was clean and low miles 105k on the clock when I bought it.

I’ve done a ton of maintenance but never imagined what it would put me through over the past year and a half. It’s not my daily driver and I would say. I would drive it once or twice a week max. Well on my way to work the engine developed a knock. I was stuck on a busy highway so I had to limp it off an exit into a neighborhood. Unaware of the journey I had in store.

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My first intuition was that it was a rod end bearing. But felt like that was blowing this out of proportion. So I wasted some money and time with a diesel shop that was adamant that it was fuel knock and requested that I buy new injectors. They ended up letting it sit for about 4 months never looking into it or starting it. The injectors arrived and they installed them and lo and behold it was still knocking. I pulled it from the shop and decided that if a diesel shop couldn't figure it out then I would through trail and error.

This knock was an anomaly. It created zero blow by, no loss in power, oil pressure was tested to be good ( I don’t trust the gauge) and the knock would come and go. I was up for every and any idea.

A friend of mine suggested lifters. This was an interesting journey. Im sharing my sources for getting lifters. I could find a few from some different parts vendors but couldn’t find a whole set. Turns out 2H lifters are the same which makes things easier because there are 2H forklifts in the USA and fork lift suppliers carry them.

Toyota part number

13751-47011

2H forklift source


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Lifters were done and guess what…

The knock was still present. It was time to get serious. I was dreading dropping that pan knowing I was going to find exactly what I predicted. Bad rod end bearings.
 

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