1985 BJ70 Turbo install (1 Viewer)

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Joined
Dec 12, 2020
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Location
Victorville
I started looking for a turbo kit for my recently purchased 1985 RHD BJ70. The 3B diesel is a cool engine, but I wanted a little more power for highway driving and hill climbing in Colorado. So I started the forum scouring and after a month or so, I came upon the kit sold by Diesel42 (Keith). After talking to Keith about the kit and the install, I made the purchase and awaited the kit. The turbo (image 1) came direct from the manufacturer, and the rest of the kit (image 2) came from Keith’s shop. I ordered a pyrometer and boost gauge from Banks. After all the parts came in, I did a dry fit to make sure things fit. There were a few things that needed to be fabricated to fit. The 13BT exhaust manifold didn’t fit on the engine. I had to mill a bit of the bottom of the manifold in order for it to attach. Also, the pyrometer probe was way to big to fit in any hole in the manifold (image 3 and 4), so that had to be machined.
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After one of the exhaust manifold studs broke off (image 5), I managed to get it out and put the new one on. I put the turbo on loosely to clock it and fit the piping across the top of the engine...
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...This presented two problems: 1. the power steering reservoir had to be moved to fit the turbo on the manifold (image 1 and 2) 2. I had to wrap the clutch booster and master cylinder in exhaust tape because the exhaust section of the turbo is a quarter of an inch from the booster/MC (image 2).

Luckily for me, there are multiple random spare holes that are the same diameter and thread size as the screws for the reservoir around the engine compartment. So it was pretty easy to move.

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I ended up using the oil pressure port in front of the oil pressure sensor for the turbo oil feed line (image 3).
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Routing the cables for the pyrometer and boost gauge was pretty uneventful. The biggest issue I had was the gauge lights are 12V so I had to use a converter for my 24V system. I ended up cannibalizing some of the old air box tubes to connect to the turbo to the air box (image 4), which saved me some money...
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...After letting the oil pan seal dry overnight, I filled the engine with oil and made sure the bolts were tight and lines were connected. The original versus the finish product are below.
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It was a fun project for me. This was my first turbo install, and this is my first diesel. I have not adjusted the fuel for the optimum EGT yet because I need to have the governor cover seal on the injector pump changed, as it has a small leak. Thanks a lot to @Diesel42 for all the insight and tricks to help with the install, and for quality machined products!
 
Wow, very cool!
 

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