BOBWhite

^2x what he said. Unless you're keeping it off road and you plan on keeping it forever its probably not worth it. Plus you would need a way to program it which from what I hear about Volvo isn't easy. 

What a cool truck! Most people chucked the flatheads but I'm glad this one was able to be preserved. Magnadyne is such a cool name for an engine 

Here are the pics he Emailed me:

I'm not sure about Android but with Apple you have to screen shot the picture to get it into the right format. I can DM you my Email and can post them if you'd like. 

Does Volvo even offer their 16 liter engine here in the US anymore? 

Oops sorry this one slipped through the cracks. I'd love to see some pictures of the truck and engine! There isn't all that much info out there about Mack gassers. Is it a flathead of overhead valve? 

I thought it was the same paint scheme as this other marketplace post I found but no. Looks about the same wheelbase though and the ad says it was a house mover at one time. https://www.facebook.com/marketplace/item/429952142891241

27 minutes ago, Mark T said:

Looks like all you can do now is swap out that IH engine for a 5.9 . 

He would have to use a Dt466 or 7.3/6.9 V8 if he wanted to diesel swap it. Those are the "rules" lol

We don't get an option to buy ethanol free gas at our only station where I live and I don't even know what the ethanol percentage is. I have to rebuild every carb I own about every year though so there is definitely some in there. 

Yeah I guess it makes sense, Volvo's probably paying more to manufacture here than than they are in there own country. The late 90s and early 00s Volvos had really great interior build quality for that time (everything else not so much). I don't know what they're like now but I'm sure they'll go down in quality like everything else that shifted production to Mexico. The global trend is building crap and we are all buying it

I wish we could have someone like Ross Perot running today, although who knows what they'd indite him with for trying.

Nice I hope she went to a good owner!

Lol I remember being that kids height and driving truck, couldn't push in the clutch to shift so learned to drive without it. 

Just goes to show they never cared about the workers here in America, or anywhere else for that matter. 

Odd question but is the top tank of the radiator cast iron like an old tractor or is it just a sheet metal grill?

If that's cast Iron it would make a great Mack Shop heater! If I could find one 

You could even drop a few MPG by going with a higher rear gear! Your working each of those 12 Liters pretty hard even if your only hauling 70,000lbs! 

10 gears just isn't very much to play with, and like Geoff said getting out of the mud loaded is a big thing to consider. I would get some sort of fuel flow meter to see what RPM that motor wants to be at and do your ratio calculations off that. 

Is the motor stock? If the stock restrictor manifold is still on that's what's holding your MPG back the most. Here is a great post describing the whole process of Souping up one of these motors:

I think some people on here have done re-gears on Mack axles but I'm not sure the on process (if you have Mack axles).  

56 minutes ago, RS Disposal said:

WOW  thanks  I will definitely be going thru that.  My search on the site for dynatard engine brake kept coming back "error" try again later.  LOL

I know google has messed up a lot of in-site searches. Its best to search for topics like this:

Someone on here should be able to answer your other two questions 

This topic seems to have the best explanation:

Oh Yeah, The Truck!  I don't remember asking if it has airbrakes but seeing the horn made me wonder. All the Loadstars I've been around have juice brakes and since IH is gone you can't easily find rebuild kits. 

I think I prefer electric over vacuum but I haven't put on serious miles with either. With vacuum it seems the shifting delay is different every day with the changing atmospheric conditions. Although with electric you have to crawl underneath every year and fix the mouse chewed wires. Whatever you want to put up with I guess. 

Here is more about that 2 speed Spicer:

Here are some pictures too:

I hope whoever gets this scans and shares these with everyone instead of sitting them on a shelf untill their estate sale. 

Is this it?: https://www.auctionzip.com/auction-lot/mack-and-brockway-truck-brochures-ten-mack-from-1_7A842F8B50?catalogReferredQueryParam=%3Fkeywords%3DMack

Hope someone here can get it! 

I can't get over how well proportioned everything thing is on that Mack. It doesn't really look like it would be the worlds largest Mack until you see the equipment around it. The Mack made the good sized front loader at the end look like a toy! That V16 Detroit has a displacement of 2,384ci or almost 40 liters! 

Seeing this truck is definitely on my bucket list!