S1600 Rebuild

[SyicoIDI]

Hi guys, I'm a newb here with a 1986 S1600 dump truck. I purchased this truck over two years ago now and absolutely love it. It was very reliable for the first two years. Then she started eating oil. Long story short head gasket let go and I bent a rod.

I know that some of the early 6.9 blocks are not recommended to be rebuilt. But I checked the numbers on my block and it was not one of those thankfully. So I tore it down and had a local shop rebuild it. I have some basic knowledge of working on trucks but could sure use some of the collective knowledge from guys on this site. This is my ambitious project.

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[SyicoIDI]

Here are some photos of the condition of the engine when i pulled it. Yuk!

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Yeah that's oil grease and rat turds.

 

[SyicoIDI]

Here is where I am now. I received my motor back from the shop rebuilt. I am awaiting a service repair manual that I ordered off ebay. I have a couple of issues I need help identifying some sensors. I ordered a new oil pressure sensor, water temp sensor, and oil temp sensor. One of the sensors was not what I was expecting it to look like. Here they are.

old sensors in front new ones in back. Anyone know what the one with the white plastic on it is for? Oil pressure?

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Though I was getting the sensor on the left and got the sensor on the right.

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[stumiister]

Sorry to tell you but your pic are not showing properly

 

[SyicoIDI]

All of them?

 

[SyicoIDI]

what about now? I think I attached them wrong. Thanks for telling me.

 

[79jasper]

Works now. Are you interested in putting any aftermarket gauges in? Or do you wanna keep it all stock?

 

[SyicoIDI]

What would be the benefits of having aftermarket gauges? I need this truck back to work as soon as reasonably possible because it is a work truck for me.

 

[79jasper]

You don't have to by any means. Just more accurate.

 

[CDX825]

Pretty sure his tuck has actual reading gauges that show actual water temp and oil pressure unlike the stock gauges in our Fords that just show "Normal"

A pyrometer would be a good investment though!

 

[SyicoIDI]

I think I will leave it all stock. I am awaiting a repair manual I ordered to help me along. I also ran into a snag with the injector pump. When I opened it up to check it out the threads completely striped out of the housing So it looks like I need a new one of those. The lines where pretty gross looking too. I have the pump at a local shop right now and I am waiting for them to get back to me with a price on a rebuild, he is also looking at the injectors for me. Does any members have any suggestions/ advice on rebuilding acquiring injector pumps, lines? Also, any other engine component I should be looking at while this thing in on my garage floor and not so greasy.
Rebuilt motor:

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[SyicoIDI]

Pretty sure his tuck has actual reading gauges that show actual water temp and oil pressure unlike the stock gauges in our Fords that just show "Normal"

A pyrometer would be a good investment though!

Yes my truck has gauges. For pressure, coolant, and battery voltage.

 

[justinray]

I would check the seats on the freeze plugs, are they fully engaged, did they use the correct stainless plugs, did they use sealant of some sort.

 

[justinray]

Yes my truck has gauges. For pressure, coolant, and battery voltage.

But are they 'real' gauges, with numbers, or are they 'normal' calibrated gauges?

 

[79jasper]

Post part numbers on the sensors and I'll tell you where they go.