Macktruckman

It does have a steel oil pan. I’m thinking it’s a mix of parts. Not being able to clearly identify that next to last digit may mean I never learn. I was told it started as a Big Cam III, 350hp. But the chart posted by theakerstwo reads it as a ntc290. I assume would mean a 1st series big cam?

Yes that’s awesome that’s what I was after could I bother you with what it would be if the next to last digit was an 8 instead of 6? 34100281

No luck on quickserve. I think maybe it requires an actual computer and I only have a iPhone

Thank you hayseed will do

Thank you very much for that. Tag on the valve cover says it has top stop injectors. It has that huge looking turbo the old engines had. It’s definitely not the low flow and the intake or aftercooler has the “hump” for the intake piping in the center. I’m not positive on the exhaust but I believe it predates the pulse type manifold. I’ll try to get some pictures up in a few

This number is on the fuel pump

Hi, I’ve searched google to no avail. I have a big cam Cummins in an old 359 I purchased a while back. The number on the front timing cover is gone. I found a number on the left rear of the engine below the last head. Im wondering if someone could tell me the year maybe and series as well as possibly the original hp setting. Number is 34100261 i think. The second to last digit is very hard to tell. I also took a picture. Thank you all in advance.

Does anyone of you gentlemen have a wiring diagram or schematic for the circuit breaker box and the firewall block for an r model cab. R686st. Specially the block on the firewall driver side. Thank you in advance

Thank you sir

Still working on my old r. Little by little it’s going back together. I’m going to put dual exhaust stacks on it. I have everything I need to do it I believe. I converted my cab to air ride so I don’t wanna bolt brackets to the cab. I have some angle iron and some rectangular tubing I was thinking of fabbing up some stands and brackets. But I got to thinking it has an aluminum headache rack going on, can I bracket stacks to the headache rack? Not have to fab up nearly so much? Looking for suggestions from you guys that have been there done that, maybe with some pictures. Thank you

My r model dash needs help. I can make new gauge panels and the cover over the speedo and tach is ok but there is cracks on the main parts. Naturally the parts that aren’t easily remade. I would be happy with a dash topper or cover like those velour toppers they make for automobiles if anyone knows of a source or has ideas. Thank you

Alright great. Will do. Thank you sir

I’ll see what is stamped there in the morning when I get to the shop. I’m thinking that’s where I found the number that made me say it was a 285. But it’s been a few years now so I’ll look there in the morning. The guy I got it from advertised it to be a 300+, but I just figured it was a sales pitch and didn’t give it a second thought. I always assumed because of the majority of trucks about this year we had around here were 285’s, this one is as well. But I’m no expert and I’m just now starting to learn some of the variations.

And we have another truck that’s almost identical to this one but that truck is an 81 (could be 82) its got the front cooler and tag says it’s a 300

I was suspicious of that cooler being non original because I was under the impression that the 285 originally had only air to air, no water. That’s why I sent that particular pic to you. Thank you for mentioning it. The id plate was gone off the block when I got it but according to the casting it shows to be a 285? It was indeed a oil field tractor. Guy I bought it from said it had spent some years pulling saltwater. I attributed the severity of the rust to that fact. Could be wrong though. I would like to give it a touch more fuel. I’m not interested in killing the engine but maybe a touch. It doesn’t really put out a lot of smoke. Might wait though until I see how the transmission makes it act.

And I rode with my dad in a b that had a quad I believe. By the time I was old enough to start driving any that old b was demolished. I’ve never driven one with a triplex or quad.

I figure it’s like everything else. I’ll learn how to shift it and where it likes to be shifted after a day or two. I may take robs advice and pull the pump and injectors and have them reworked too a little later on. I figured that is easy enough done anytime. Right now was kinda the time to swap the transmission. And having the cab off, I just lifted it right out the top. And it’s probably a good thing I pulled the old one. The clutch was pretty worn. I didn’t really want to buy a clutch yesterday but I would have been much more sore if I didn’t and it went out in a couple months, you know?

There’s a few pictures of the rust bucket. Thanks to rob for help with loading pics. Got everything apart and started back together today. I went ahead and pulled the 107 and put the 9LL in with a new ceramic clutch kit today. Got the new to me cab and the hood painted with DuPont imron.