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Almost ANY manufacturer prior to 2002 can lay claim to this! Almost All the engines from Detroit, Cummins,Cat , Mack and I hate to say even THE V , All were relatively dependable up to this point in time ! Unfortunately you can"t depend on something thats forced to eat its own shit to be dependable It ain't gona happen Mediocre at best ! The worst is yet to come Government will soon force every working and registered truck to be no older than 10 years old 'You watch!' Its coming!

Yup no wonder we can’t get a fan hub for a g u 714 busy over paying this guy instead of investing money where it’s needed!Great job Volvo!

The other question that needs to be asked Here !! these were offered in a mechanical version as they mutated / transformed into VMAC ! Is it An electronic or Mechanical engine??? Vmac was started in 93! Could be as simple as a bad micro switch! or relay hanging up! Have also seen on the mech version the throttle lever cause grief if its worn! Just some thoughts

Tried getting an fan hub kit for GU last week. None to be had anywhere. We were told Mid Nov! Pretty nice when ya buy something and you can't get shit to fix it! Try with Holding a truck payment and see how it goes!!!!!! The strike probably ain't helping this situation either!

As I mentioned shooting for 24 is best ! top spec is 28 I believe we have run them at the top end as well however never experienced head hop or shuffle.we also use hi tack on both sides of the gasket with no issues!

honestly I don't think it matters however, yes the convex up facing the head ! the sharp side facing the liner that way the ring stays put better! AND just a word to the wise you should have measured your liner height (protrusion )! correct ? You needed to be trying to achieve at least 24 thou Bottom spec for best results on a 400 plus HP engine !the book low spec is TOO low for anything over 400!

I have always installed the fire rings sharp side down as long as the rings are the new style none stepped rings! It’s never failed me yet!

Yup its always someone else fault! MY GOD ! So Do we really need to monitor the auto greaser? REALLY!🙄 Should make the machine De rate to 20 percent till that is fixed for sure !🙄

good job!

Does It have a night switch!???

Nice!

Yup amen to that! Tech ! I have found that if you get solid fuel to at least two injectors you will be able to make it run! We have a guy at my shop refuses to bleed At the head and cranks at the starter for ever, to get them to go Drives me nuts! He claims he read some where Mack did not recommend this method ! I believe it stems back to the fuel line feasco early 2000's when they changed to the dollar store supplier !!! they would also have u change the fuel line every time they are removed! I say OF Coarse! Mack recommends a alot of stupid shit they get to sell more parts that way They can sell starters and fuel lines by the bushel with the bleed at the pump method! So get fuel to as many injector s as possible and it will start fine!

I haven’t seen many reman eup s fail! However I’m not a huge fan of Mack reman parts either poor quality workman ship is rampant. OR low /loose rebuild specs! just me maybe!🤔

Did you test with the die after you replaced the o rings? Your positive the fuel ain’t coming from the transfer pump!?

So I am miss understanding is the new fuel sample clear or not?

Good Job Bro The easy fix check is done Best advice I have now is to get your work done don't use the split till ya got time to deal with removing the shift lid! There are two other semi common things that can happen ,The shift rail engagement knob has come loose on the piston rod you can deal with that when the lid is off! OR you have a broken shift rail , For this The trans has to come out PAI Is the place to by the parts ! And This is not the place to do a farmer patch the shift rail is a big project Trany out and into three pieces on the floor You need a nice warm barn to tackle this project in the winter! 😁

True ! cheaper for them to build the more they can charge for it! 🙄

Our DOT / Police here would likely have not noticed this ! They tend to like to find more important stuff like burned out licence plate lites and and missing dot tape! ! Anyway the idiot that was driving must have a screw loose in his brain not to have felt something was going on it would have had to be pulling and shaking like hell!

I for one am totally amazed at how hard the dam stuff packs in them holes its amazing! Another comment I have is The place where the sensor sits used to be bolted on and easily cleanable Now All one piece Makes me wonder if they have done this to encourage you to have to buy a hole new tube another semi intentional money grab! another non serviceable part to plague us!

Good call Teck I didn't read the tittle Duhhh! I assumed his 15 MR!

Your in the zone with what you you have! We have had this problem and it was injector! Having said that Mack E service had us put die in the fuel filter and run the engine for a minute or so the die showed up right away at the offending injector under the black light ! In your case in an MR its going to be tough cause half the truck has to come apart to get the valve cover off How ever its either this or replace all six! Just Sayin!

If you are a Farmer you can do this job! That"s what farmers do fix shit to get on with things ! Or At least find some one who can and the the point is you use the truck once a year how much do you want to spend??? oring kit MAK207SH32 - 66 MAK97AX121 snap ring - 61 MAK97AX126 snap ring - 63 At the very least here! take the end cap off of the BIG cyl 4- 3/8 bolts see if the snap ring is broken and hanging things up! if not then reassemble and yes the lid will have to come off! Just sayin

KEY PAI REFERENCE EXCEL NO. OEM REFERENCE DESCRIPTION REFERENCE INFORMATION 1 GSI-0616 MAK136KC25BP1 INTERLOCK 1 Call MAK136KC312 INTERLOCK 2 Call MAK393KB420A COVER 3 GSC-0009 MAK6AX1308X SCREW(3/8in-16 x 1-1/4in) NAV 60001R91 4 BWA-0066 MAK37AX265 WASHER 5 GSP-1674 MAK107KD140 SPRING 6 GDB-1665 MAK48AX17 BALL MAK 48AX11 7 GSP-1672 MAK107KD116 SPRING 8 GSP-1676 MAK107KD157 SPRING MAK 107KD1177 9 Call MAK413KB13 COVER 10 ESC-0035 MAK6AX1359X SCREW(3/8in-16 x 1in) MAK 6AX1274X NAV 1670574C1 11 GGS-3970-007 MAK628KB124 GASKET 12 MSW-4396 MAK1MR2297 SWITCH,Reverse NAV 454925C1 MAK 1MR1320 13 Call MAK408KB217A COVER 14 EPP-3575 MAK49AX234Z PLUG NAV 444631 15 Call MAK136KC120 PLUNGER 16 Call MAK6AX1313 SCREW 17 BGA-3009 MAK56AX438 O-RING,Lo/Direct Shift(4 Req'd) 18 BGA-3004 MAK56AX436 O-RING,Lo/Direct Range Shift (2 Req'd) MAK 56AX546 19 GSH-1714 MAK591KC2283A RAIL,Reverse 20 BGA-3003 MAK56AX437 O-RING 21 BGA-3007 MAK56AX434 O-RING 22 Call MAK414KB262 COVER 23 Call MAK6AX1292X SCREW 24 GPA-2204 MAK336KC232 PISTON,Lo Range 25 BGA-3008 MAK56AX441 O-RING,Direct Shift(2 Req'd) 26 BGA-3006 MAK56AX439 O-RING(2 Req'd) 27 BGA-3005 MAK56AX440 O-RING(2 Req'd) 28 Call MAK6AX1314 SCREW 29 Call MAK414KB2127 COVER 30 GBF-6443 MAK541KB19 BREATHER 31 GAC-2206 MAK476KB316A CYLINDER,Airshift 32 GSH-1694 MAK591KC2322 RAIL,Direct(TRTXL-1070) 32 Call MAK591KC2294B RAIL,Direct(TRTXL-107) 33 GPA-2205 MAK336KC265 PISTON,Direct MAK 336KC238 34 GKP-3489 MAK79AX75Z PLUG NAV 1662500C1 MAK 79AX4 35 Call MAK502KB113 DOWEL 36 GSC-6116 EF61160 MAK7AX264X SCREW,Lock(Dog Point) MAK 7AX152 MAK 7AX255 37 GSL-0624 MAK170KC276 LEVER,Reverse 38 GSL-0625 MAK170KC292 LEVER,Direct 39 Call MAK79AX58 PLUG 40 Call MAK35AX1028 WASHER 41 Call MAK22AX40 NUT 42 GGS-3970-004 MAK616KB37 GASKET,Cover,Compound 43 GSF-0623 MAK699KC2132C SHIFTER,1st/Reverse MAK 699KC351 44 Call MAK591KC2266A RAIL,1st/Reverse(TRTXL-1070) 45 GSP-3103 MAK31KD1151 SPACER 46 GSF-0650 MAK575KB3128A FORK,1st 47 Call MAK575KB3153 FORK,Reverse 48 GKP-3496 MAK79AX35 PLUG(1in Welch) 49 GSF-0622 MAK699KC2126C SHIFTER,2nd/3rd MAK 699KC350 50 GSH-1685 MAK591KC2277B RAIL,2nd/3rd(TRTXL-107) 50 GSH-1687 MAK591KC2281A RAIL,2nd/3rd(TRTXL-1070) 51 GSF-0630 MAK575KB3130A FORK,2nd/3rd 52 GSF-0635 MAK575KB3170B FORK,Direct MAK 575KB3208 53 GSH-1695 MAK591KC2327A RAIL,Direct 54 Call MAK699KC2148 SHIFTER,4th/5th 55 GSH-1692 MAK591KC2214A RAIL,4th/5th(TRTXL-107) 55 Call MAK591KC2228A RAIL,4th/5th(TRTXL-1070) 56 Call MAK591KC2232P1 RAIL,Compound (TRTXL-1070) 56 Call MAK591KC325 RAIL,Compound(TRTXL-107) 57 Call MAK7AX265X SCREW 58 GSF-0621 MAK575KB394H FORK,4th/5th 59 GOS-6182 MAK88AX370P3 SEAL CHI 7414 NAT 1049 60 GSF-0657 MAK575KB42C FORK,Compound 61 GRI-2702 MAK97AX121 RING,Retaining 62 FKT-1148 MAK14RC1131 KIT,Valve,Major 63 GRI-2703 MAK97AX126 RING,Retaining 64 FKT-1147 MAK14RC1130 KIT,Valve,Minor 65 GBK-6562-100 MAK342SH594 KIT,Retaining Ring Includes Rings (1)GRI-2701 (1)GRI-2703 (1)GRI-2711 (1)GRI-2712 (1)GRI-2713 (3)GRI-2715 (3)GRI-2716 (1)GRI-2719 (1)GRI-2731 (1)GRI-2732 (3)GRI-2734 (9)GRI-2735 (1)ESR-2832 (1)GRI-2733 (3)GRI-2704 (1)GRI-2702 (6)GRI-2706 (12)GRI-2707 (1)GRI-2714 (2)GRI-2717 (4)GRI-2718 (1)GRI-2794 66 GBK-6562-200 MAK207SH32 KIT,O-Ring Includes O-Rings (2)BGA-3004 (1)BGA-3003 (4)BGA-3008 (2)BGA-3005 (4)BGA-3009 (2)BGA-3006 (1)GGA-2993 (1)BGA-3007 (1)ER64420 Lubricant (1)GSL-0383 Breather (1)ER64420 67 GSP-1679 MAK107KD1172 SPRING(TRTXL-1070) 68 LSV-3692-002 MAK9054-P58987 ROTOR

The bigger of the two cylinders ! get the orings and a snap ring before you disassemble the cylinder snap ring has been known to break and cause the symptom you describe at the rear it can be accessed at the rear of the trans Without removing the lid!

Perfect Timing for the Volvo Guys!😡 Volvo Wins! You Loose Thats how the game is played! And that's how they make money!