Mack rd694p single axle dump

[90plow]

Hey guys new to the forum. I have a 2002 f650 and im looking to upgrade to a beavier truck for pulling my equipment. Looking at a 1995 rd694p single axle dump with 170k miles on the clock. Truck has a maxi torque 6 speed and an e5? Motor salesman isnt that bright. I sent the vin to mack to see hp ratings etc. My question is the truck doesnt have a/c is it possible to add and if so what kind of money are we talking about? Any thoughts on the maxi torque or engine?

Thanks

Eric

[2stacksuperdog]

E5? Theres E6 and E7 and its a 1995 so its a E7

[hatcity]

Maxi 6 spd is a great tranny.

[kscarbel]

The Mack-RVI EM5 engine was introduced in 1997. Here's a news article about it, and a spec sheet.

http://fleetowner.com/mag/fleet_mack_unveils_liter

The original E5 launched in 1988 with the CM-400 Mack "Baby 8" at 240 horsepower is related to the later EM5-250/290 engine, but I don't recall the evolutionary details.

The idea to offer a smaller and inherently less expensive 10-liter (9.83L) engine in additon to the 12-liter (11.93L) E7 was a sound strategy.

Mack RD-694P (EM5-250).pdf

[bbigrig]

The E5 was a rebranded Renault engine slipped into the RD series of the 90's to make it lighter and cheaper for municipal orders. The Engine didn't go over so well and getting parts for the little bastard became a problem. It was the same engine offered in the CM422 with 6 individual cylinder heads similar to the Renault 06.20.30. engines found in early MS/CS 300 series Midliners.

I would pass on that one if it is an E5. Not many have seen one, let alone worked on one and parts are none existant.

[kscarbel]

The E5 was a rebranded Renault engine slipped into the RD series of the 90's to make it lighter and cheaper for municipal orders. The Engine didn't go over so well and getting parts for the little bastard became a problem. It was the same engine offered in the CM422 with 6 individual cylinder heads similar to the Renault 06.20.30. engines found in early MS/CS 300 series Midliners.

I would pass on that one if it is an E5. Not many have seen one, let alone worked on one and parts are none existant.

Yes, the EM5 was sourced from RVI but there were no performance or spare parts availability problems.

The 1997-launched EM5-250 and EM5-290 offered a large performance boost over the 1988-launched CM-400's E5-240.

8.82L MIDR 06.20.30 (Mid-Liner) 215hp @ 2300rpm 544ft.lb. @ 1500rpm

9.83L E5-240 (CM-400) 240hp @ 2000rpm 860ft.lb. @ 1200rpm

9.83L EM5-250 250hp 975ft.lb @ 1150rpm

9.83L EM5-290 290hp 1160ft.lb. @ 1150rpm

The MS300T Mid-Liner tractor with the MIDR 06.20.30 and RVI 10-speed splitter transmission was a superb truck. They were extremely popular with customers owing to their reliability, and were seldom in the shop for other than servicing.

Individual cylinder heads actually have several advantages. A cylinder head covering more than one cylinder imposes restrictions on the maximum potential for achieving efficient intake and exhaust flow, because provisions for cooling and clamping compromise cylinder head design. Since individual cylinder heads don't suffer from these obstacles, the head design can be optimized for rapid gas flow to achieve maximum fuel efficiency.

Also, speaking of maintenance, it is far cheaper and faster to remove and reinstall an individual cylinder head, than a single cylinder head covering two to six cylinders.

In year 2013 with Volvo in charge, I'd hesitate to buy a Mack with an EM5 now (unless it was in good condition). The parts are readily available from Renault via Volvo, but with Volvo's stick-the-customer parts pricing philosophy, I'd be afraid of costs.

[90plow]

Well the dealer didnt get back to me but i did call back and get a nicer guy named todd to give me a few minutes of his time. Accordidng to the vin number its an EM5260 he said its a 260 hp motor and it orginally had the maxitorque t2060 so its all original. Im going to take a look at it this week. See if its clean or beat to hell. The only other issue is mack has it listed as 456,000 miles but the odo shows 170,000. Its a one owner truck and the guy doesnt know why its saying that even going to call amck to straighten it out. Well see what happens.

[90plow]

Also it has a crd 93a rear. Dont know if that tells you anything.

[kscarbel]

Also it has a crd 93a rear. Dont know if that tells you anything.

It has a 23,000lb Mack RA23 rear with a CRD93A carrier. Did you glance at the RD-694P spec sheet that I attached to my earlier post? It has all the specs on the truck you're looking at. For a single axle dump, I'm more suspicious of the alleged 456,000 mileage figure.

[90plow]

It doesnt really make sense based on the condition of the truck In the pictures... However when i go to look at it the story may be different. He has two trucks from the same guy one ford one being this mack and both have similar mileage. He did local utility work with a 416 backhoe. I want to believe the odometer but well see what happens. Thanks for the spec sheet i did t see that before on my phone that helps. Thanks guys

[kscarbel]

It doesnt really make sense based on the condition of the truck In the pictures... However when i go to look at it the story may be different. He has two trucks from the same guy one ford one being this mack and both have similar mileage. He did local utility work with a 416 backhoe. I want to believe the odometer but well see what happens. Thanks for the spec sheet i did t see that before on my phone that helps. Thanks guys

Does it have a low-sided contractor's dump body or a full-sided conventional dump body?

We know it has the RA23 rear axle. Solid performer but for a large full-sided dump body, I'd have preferred the optional RA30.

What's the front axle? Hopefully it at least has the 14,300lb axle or better yet the 18,000lb axle. The standard 12,000lb axle is more suitable for road tractors. Of course, much depends on the resulting load distribution based on how this truck was built (i.e. wheelbase, body mounting location).

[90plow]

heres a picture so you can get an idea. Im going up to look at it on thursday he said its registered so I plan on taking it on the highway checking high speed for shimmy or shakes, also want to find some hills to stop/start on. Not sure what the front axle is the guy at mack was helpful but didnt really give me all the info i wanted.

[jakebrake86]

That's a nice looking little truck.

[kscarbel]

From here, that's a nice looking truck. Appears to have been operated with care (e.g. despite the age, the body's not all banged up).

With that body and wheelbase, the 12,000lb front axle would work. I'd rather it have the 14,300lb axle but its not a deal breaker.

[BKrois]

Is that Mack next to Jim Reeds Truck Sales? I was hauling past there this winter. I've seen the truck around a bit doing utility work, probably didn't have too hard of a life (depending on who drove it though)

[farmer52]

Nice RD!

[90plow]

Went to look at it a few hours ago. Looks good couple items need to be repaired such as activation switch under the throttle for the jake brake (works when you pull up on the peddal) needs rear brakes and drums needs front tires couple cracks and splits in the fiberglass nose. Inside was clean bed has a crap paint job. Its a good truck for the money and we will probably go for it need to figure out what costs are involved such as brakes and adding a/c. It is the truck right next to jim reed. Beautiful area coming over the bear mtn bridge.

[RFCDrum]

You're in Jersey? What part?

Cheers, Rob

[90plow]

I live in Roxbury are you in nj? So we talked about it and I think were passing on this truck. Upon looking at photos we realized how rusty the filters were (never changed??) and just the age of the truck its almost 20 years old. Now theres nothing wrong with old iron but for me to buy it id probably spend a few bucks close to 10 grand to get it right and keep it running. I don't want to spend that kind of money on a truck that's struggling to get 10k on the open market. Was cruising the net and ran across some other RD single axles that were ex state trucks with aluminum bodies. Only thing that really stuck out to me is that in the listings it says no engine brake. Anyway the state trucks are always speced heavier and nicer than most others. Can an exhaust brake be added with any effectiveness or am I kidding my self if I don't add an engine brake like a jake? heres the link to the truck.

http://www.rockanddirt.com/trucks-for-sale/MACK/RD688P/invnum=9746961

[GreenGiant2]

I wouldn't pay what they are asking, maybe 15-16,000, my 2 cents

[farmer52]

I live in Roxbury are you in nj? So we talked about it and I think were passing on this truck. Upon looking at photos we realized how rusty the filters were (never changed??) and just the age of the truck its almost 20 years old. Now theres nothing wrong with old iron but for me to buy it id probably spend a few bucks close to 10 grand to get it right and keep it running. I don't want to spend that kind of money on a truck that's struggling to get 10k on the open market. Was cruising the net and ran across some other RD single axles that were ex state trucks with aluminum bodies. Only thing that really stuck out to me is that in the listings it says no engine brake. Anyway the state trucks are always speced heavier and nicer than most others. Can an exhaust brake be added with any effectiveness or am I kidding my self if I don't add an engine brake like a jake? heres the link to the truck.

http://www.rockanddirt.com/trucks-for-sale/MACK/RD688P/invnum=9746961

Mike (mike69mackman)

I think I found the buyer of those PA state trucks at auction in Newville.

[kscarbel]

The state paid top dollar to get these RDs with all the special options and features they demand. But then sells them with just 50,000 miles when a good maintenance director could easily have these trucks run another 10 years - 50,000 miles. And they'll replace them with a Freightliner Business Class that isn't half the truck? A troubling waste of money.

[RFCDrum]

I live in Roxbury are you in nj? So we talked about it and I think were passing on this truck. Upon looking at photos we realized how rusty the filters were (never changed??) and just the age of the truck its almost 20 years old. Now theres nothing wrong with old iron but for me to buy it id probably spend a few bucks close to 10 grand to get it right and keep it running. I don't want to spend that kind of money on a truck that's struggling to get 10k on the open market. Was cruising the net and ran across some other RD single axles that were ex state trucks with aluminum bodies. Only thing that really stuck out to me is that in the listings it says no engine brake. Anyway the state trucks are always speced heavier and nicer than most others. Can an exhaust brake be added with any effectiveness or am I kidding my self if I don't add an engine brake like a jake? heres the link to the truck.

http://www.rockanddirt.com/trucks-for-sale/MACK/RD688P/invnum=9746961

I lie in Hillburn, NY just over the border from Mahwah. From Paramus originally.

[90plow]

So we went up today and looked at the ex penn dot trucks. The one we chose is a 2001 with 41,000 miles and only 3,300 hours on it. The price is 29,000 which is more than we wanted to spend but the truck is super clean. Its a 275 hp em7 mack with an 8LL behind it. Truck is perfect minus the jake and ac. Ive been cruising the net looking at aftermarket ac systems and they seem reasonable. The jake is the only thing im wondering about can you direct me to a place to find the correct heads and parts to install a jake on the truck? Also how hard are these motors to tune up to 300 hp or so?

Thanks,

Eric

[kscarbel]

Congratulations on getting a nice truck.

275 versus 300, for your trouble and expense, you won't notice the difference in power. Enjoy the slight fuel savings of the 275 and stick with it. Mack parts used to sell a Jake retrofit kit, give your dealer a call.

Both Kysor and Red Dot used to offer aftermarket AC kits for this cab. I much prefer Red Dot (the in-cab portion). I preferred the Mack OEM compressor bracketry over what came with these aftermarket kits. Taking a look at a similar vintage R/RD with factory air will be immensely useful to you.