storkmack Posted April 29, 2012 Share Posted April 29, 2012 I looked at a R770 after church this morning. I know that it has been updated as far as motor and rears/susp. What I am wondering is, what did it leave that factory with as far as a motor. The VIN is R770ST1128. Thanks, Brad Quote Link to comment Share on other sites More sharing options...
umodelnut Posted April 29, 2012 Share Posted April 29, 2012 All I can help you with is that R means R model, 770 prolly means V8 or long nose R model (R700), ST means tandem tractor, and 1128 means it was the 128th R770ST made. Vinny Quote Link to comment Share on other sites More sharing options...
storkmack Posted April 29, 2012 Author Share Posted April 29, 2012 Thanks, Vinny. I had a handle on all of that. Just wondering what it had for a power plant when new. -Brad Quote Link to comment Share on other sites More sharing options...
daveigou Posted April 29, 2012 Share Posted April 29, 2012 Should have been some version of an 8V-71 Quote See my Flickr photostream page http://www.flickr.com/photos/96692978@N05/ Link to comment Share on other sites More sharing options...
storkmack Posted April 29, 2012 Author Share Posted April 29, 2012 That is what i remember the truck having years ago. My Dad was pretty sure it had a cummins. Thanks, Brad Quote Link to comment Share on other sites More sharing options...
umodelnut Posted April 29, 2012 Share Posted April 29, 2012 Thanks, Vinny. I had a handle on all of that. Just wondering what it had for a power plant when new. -BradOh OK, thats all I knew though. Quote Link to comment Share on other sites More sharing options...
Green Dash Posted April 30, 2012 Share Posted April 30, 2012 I found one source that shows an 8V92 as the original engine. What year is it? I think the 92's came out in '75 or '76. 1 Quote Jim Link to comment Share on other sites More sharing options...
umodelnut Posted April 30, 2012 Share Posted April 30, 2012 I found one source that shows an 8V92 as the original engine. What year is it? I think the 92's came out in '75 or '76.Whats the source? Why wont you tell us? Is it a secret? Is there any U models? Quote Link to comment Share on other sites More sharing options...
Green Dash Posted April 30, 2012 Share Posted April 30, 2012 Whats the source? Why wont you tell us? Is it a secret? Is there any U models?I forgot to post the link. It's an Austrailian forum so no U models, they like their Macks fair and balanced. The info appears to be accurate, I'd go with it.http://www.hcvc.com.au/forum/YaBB.pl?num=1286326467 Quote Jim Link to comment Share on other sites More sharing options...
Superdog Posted April 30, 2012 Share Posted April 30, 2012 8V92 Detroit would be correct for the R770,a 8v71 would be a R773,a 12V71 would be a R771. Quote Link to comment Share on other sites More sharing options...
57 bcr Posted April 30, 2012 Share Posted April 30, 2012 I looked at a R770 after church this morning. I know that it has been updated as far as motor and rears/susp. What I am wondering is, what did it leave that factory with as far as a motor. The VIN is R770ST1128. Thanks, Brad Was this truck painted blue,Brad? Originally MACK Green ,maybe? Quote IF YOU BOUGHT IT, A TRUCK BROUGHT IT..AND WHEN YOU'RE DONE WITH IT, A TRUCK WILL HAUL IT AWAY!!! Big John Trimble,WRVA Link to comment Share on other sites More sharing options...
storkmack Posted April 30, 2012 Author Share Posted April 30, 2012 Yes it is blue, Al. It has a lot going for it as far as I am concerned. As always, it comes down to time and money. -Brad Quote Link to comment Share on other sites More sharing options...
57 bcr Posted May 6, 2012 Share Posted May 6, 2012 Jim has had that truck on the road for many years,as you know.When I started in '86 it still had the Detriot in it.He since put a 350 Mack in it,went from camelback to taper leaf to air ride.I would not be afraid of that truck at all.It was always kind of different with the Detriot and that Roadway-style under the hood air cleaner. Quote IF YOU BOUGHT IT, A TRUCK BROUGHT IT..AND WHEN YOU'RE DONE WITH IT, A TRUCK WILL HAUL IT AWAY!!! Big John Trimble,WRVA Link to comment Share on other sites More sharing options...
Rob Posted May 6, 2012 Share Posted May 6, 2012 And if you don't wind up with it Brad, I might be able to make so room down here for it. By the way, is the loft still open in the barn? If I buy another truck, I'll need it.Rob Quote Plodding along with no job nor practical application for my existence, but still trying to fix what's broke. Link to comment Share on other sites More sharing options...
storkmack Posted May 6, 2012 Author Share Posted May 6, 2012 And if you don't wind up with it Brad, I might be able to make so room down here for it. By the way, is the loft still open in the barn? If I buy another truck, I'll need it.RobI have come to the conclusion that I can not drive every sweet ass R-model I come across. I would like to try too. This truck has an EM-7 300hp, Fuller 13 speed, on Mack rears with the older hendrickson style air ride. It also has air ride cab. The real cool thing is that it is set up with an air start. Very un molested truck. I also like the fact that it is an 81' year model, because I am also an 81' year model. I did noy talk to the gentleman that owns it, and he does not have his number on the for sale sign in the window. I do know that the truck was still on the road in March, because he was runnning the same route as we were at that time. -Brad Quote Link to comment Share on other sites More sharing options...
storkmack Posted May 6, 2012 Author Share Posted May 6, 2012 And if you don't wind up with it Brad, I might be able to make so room down here for it. By the way, is the loft still open in the barn? If I buy another truck, I'll need it.RobRob, I forgot to mention that we could make room for you over here. Problem is, we would put you to work. -Brad Quote Link to comment Share on other sites More sharing options...
Rob Posted May 6, 2012 Share Posted May 6, 2012 I have come to the conclusion that I can not drive every sweet ass R-model I come across. I would like to try too. This truck has an EM-7 300hp, Fuller 13 speed, on Mack rears with the older hendrickson style air ride. It also has air ride cab. The real cool thing is that it is set up with an air start. Very un molested truck. I also like the fact that it is an 81' year model, because I am also an 81' year model. I did noy talk to the gentleman that owns it, and he does not have his number on the for sale sign in the window. I do know that the truck was still on the road in March, because he was runnning the same route as we were at that time. -BradWell, I'm prolly at that point too but in all honesty, (if possible) I still enjoy looking in my shop and see a bunch of long nose R models. They really don't even need to run, (they do) it's just something to talk about with the visitors which continue to be many. I'll be up in Elgin for more training in the next couple of weeks and will stop by.Rob Quote Plodding along with no job nor practical application for my existence, but still trying to fix what's broke. Link to comment Share on other sites More sharing options...
Rob Posted May 6, 2012 Share Posted May 6, 2012 Rob, I forgot to mention that we could make room for you over here. Problem is, we would put you to work. -BradThink I still know how to paint......Maybe learn a few new tricks also?Been looking at transferring to either Elgin, or Aurora as secondary technical support within the next couple years. Too young to "throw in the towel" but am eligible to retire by then.Rob Quote Plodding along with no job nor practical application for my existence, but still trying to fix what's broke. Link to comment Share on other sites More sharing options...
storkmack Posted May 7, 2012 Author Share Posted May 7, 2012 Hopefully you will get see the RS's mixing concrete when you come by. -Brad Quote Link to comment Share on other sites More sharing options...
Rob Posted May 7, 2012 Share Posted May 7, 2012 Hopefully you will get see the RS's mixing concrete when you come by. -BradI put the scopes on the one back at the batch plant last week. Nice looking truck. Seen another over to the side which looked nice also. Didn't want to get out till I'd met up with you as didn't know if Jerred was there or not. Don't think anybody else knows me?12 speed back together yet?Rob Quote Plodding along with no job nor practical application for my existence, but still trying to fix what's broke. Link to comment Share on other sites More sharing options...
storkmack Posted May 7, 2012 Author Share Posted May 7, 2012 The 12 speed is coming together. Jared found a few more things that he needed. PAI has really come through on that project. -Brad Quote Link to comment Share on other sites More sharing options...
Rob Posted May 7, 2012 Share Posted May 7, 2012 The 12 speed is coming together. Jared found a few more things that he needed. PAI has really come through on that project. -BradI get a lot from them too. More body and support than mechancal parts, but good to deal with.Rob Quote Plodding along with no job nor practical application for my existence, but still trying to fix what's broke. Link to comment Share on other sites More sharing options...
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