kk diesel repair

Can anyone tell me if theres anything special I need to know or do before setting the valves on my 05 CV713? Engine is an A1400. 4 valve no jake but I see there is a spring on the end of each exhaust push rod and I am not familiar with this so before I mess something up I wanted to check. Any help is greatly appreciated.

Thanks for the help valves are set truck runs fine. thanks again

The valve set marks are marked on the fly wheel remove the cover on the very bottom of the flywheel housing rotate the engine till you see set valves 1-6 5-2 3-4 dead center in the window set in firing order 153624 yokes set with valves push down on the yoke turn the scre till it contacts the one flat beyond touching.

16 inlet 24 ehast 15 on the jake!

Im also wondering if anyone can tell me why the expansion plug on the front side of the rocker arm shaft on both heads fell out could this be a factor in low oil pressure 14 at idle 50

Likley the jake won,t work either.

Ok I looked again and I have no marks on the flywheel. That is why Im unsure where to start?

Im unsure about timing marks for setting the valves on my 99 E7 460. There are no marks on the dampner and the two notched teeth in the flywheel are visible through timing cover however when they show #1 is on exhaust. My question is if I put the engine on #1 TDC can I just mark the dampner then mark it 120 degrees twice from there? Also how do I know if this engine is a dynatard and if it is dont I need to go 30 degrees after TDC to set the valves? The bridges are set at TDC correct? Im also wondering if anyone can tell me why the expansion plug on the front side of the rocker arm shaft on both heads fell out could this be a factor in low oil pressure 14 at idle 50 at W.O.T Any help is greatly appreciated. Cant afford Mack dealer these days

Thanks, Brad

Brad, the 73 and up model years are pretty much the same with the exception on minor holes in the firewall. Of course the DM, and U series cabs are different due to being offset 11 inches to the left, (driver's side) and the underside bracing and floorpan/firwall are different to facilitate this.

I've switched several through the years and it is not a big job to install a 1973 cab onto a 1994 chassis, (or anything in between) using all the original parts from the 1994 cab. Minor welding and fabrication is all that is needed.

Rob

Thanks Rob this will aid in my search. Thanks again

I am going to replace the cab on our 1993 RD690. Can anyone tell me if I am limited to that cab or would a different style or year cab fit without major modifications?

Thanks, Brad

953 and 963 always liked them, 953 was good for small jobs and the 963 could load a truck real fast and push most piles down in just 2 passes.

We have a 1995 Cat 963 redone undercarriage by Cat 1000 hrs ago. Rebuilt trans last year. We were thinking about possibly getting rid of it (no Work) dont know if anybody would be interested or not?

At 5:30 this morning my 3 month old granddaughter was found dead. Her mom (my step-daughter) laid her on the sofa this morning and put a blanket on her to keep her warm and prevent her from rolling off of the sofa. Said that she went to get her and she was cold and blue, that she may have suffocated in the blanket. Coroner is investigating.

You and your family are in our prayers brother.

Like the gentlemaen refered to earlier it's all about return on investemnet. The bean counters and as I call them Educated Fools have made decisions in the offices and consequences aren't kept in mind. This is now a Country of non serviceable parts and has a throw away mentality. Pride in your job? Shit, this has become every man for himself. I am just glad my 89 year old grandfather and my parents raised me not to be a sheep.What is going on is unacceptable and the granite faces on Rushmore would be apauld. Loyalty, besides for a select few is also a thing of the past. Wal Mart mentality Bigger Cheaper and Faster the hell with longevity!

I couldnt agree with you more!

What this will do is make the history, restoration, preservation, and collection of all things Mack just that much more meaningful. There are few icons that have such a passionate following as the Mack. At a show a few years ago a fellow came up to me and was upset with my playing of truck songs especially all of the old Mack songs. I told him that if they had sung songs about other truck brands I would play them too!! I am looking at my bulldog.......Diesel laying at my feet snoring away. He has no idea of the legacy his breed inspired to be part of a once proud and strong America! An America that was proud of it's ingenuity and products that were built to last. That took care of it's people who labored for it. Now it just fast talking politics and money making greed. You cannot tell me that Volvo could not have preserved an identity for Mack by keeping a presence in the HQ and leasing out the remaining space. And or leasing space back to preserve a dignity and expectation that a loyal following of customers have. Mack kept an office in the NY empire state building for many years just for that reason.

Amen my friend. Its more than just the truck and the name its what it represents!!!!!!!!!

The problem with modern corporate culture is it that the personal relationship between the company and customer has been severed. Many times the execs at the top do not have any prior experience or involvement with the business sector they are currently in control of. They just need to know one thing: how to make money. Profits increase company value which drives share prices up. That's about all there is to it for them. As long as the share holders are happy with increased dividends they (execs) don't care what the product/brand is or what it stands for. Volvo execs are in Sweden, practically on the other side of the world. You think they care what any of us think? All they know is Mack has a significant foot hold in the vocational market which complements their strong over the road sales. That equals $$$$$$ for them which increases their market share, which increses their company value and finally increases their disgustingly high salary/ bonous etc. They can make more money in a year then most of us put together will see in a life time.

The following Mack attributes do not matter in a money sense:

History - how many great structures, road sand cities have deen built on the back of bulldogs? But that does not really mean anything, as long as you have a product to sell you can ride that name.

Driveline - Mack components dont sell as much as Volvo/Eaton/Meritor on a global scale. They could easily be cut out in the future and replaced with Volvo/3rd party components.

Engine - Mack engines were once the best but the ASET showed us you cant always teach an old dog new tricks. Why reinvent the wheel when you already have modern engines ready to roll? Enter the MP series.

Design - The Volvo cab is not only comfortable but built with the highest safety standards in mind. Which is better to sell and will decrease the likely hood of exposure to liability suits? Rumor has it when the Mayflower-Mack contract expires Volvo will replace the Mack cab with their own. At that point what is the difference between a Mack and Volvo besides the hood? Autocar anyone?

Customer - A truck is a tool. A customer is a wallet. As long as they open their wallets to buy the tools for the job then money is being made. There are many people who arent that brand loyal, they just want a good product. Volvo and Mack products are known to be very Durable (contrary to what people here want to believe). They will sell reguardless.

In the end this is all it boils down to.

I agree fully with your last statement. A truck is a tool and in the vocational industry here in the midwest people are looking for "real Macks". As Volvo picks Mack apart sales will continue to drop marketshare will decrease and therefore it does matter and should matter to the execs whos salaries will be affected. As far as safety goes I really must disagree I have seen four in the past year that have been in serious collisions drivers were hurt trucks were totalled! Two 01 CHs also in severe collisions trucks were badly damaged and drivers were shook up. Both Macks were repaired by us at the shop and put back in service,Volvos were taken by insurance company and scrapped. Volvos were 06. So my point is even a half a Mack (eaton trans and rear ends) is a better product than a full Volvo. This is what the execs should be paying attention to. People in general especially corporate America should look more at the forest and less at the trees! Companies are not just numbers theyre PEOPLE and that matters in my book. It also translates into a far superior product. Salaries and blueprints dont build companies people do!!!! Companies like Mack Truck are not just bussinesses they are part of a dying breed of American institutions!

This is what I feel it boils down to the people who are affected by the slow destruction of this all American Company!

Good to hear!

Did you use the over lap method or did you Finally find marks ?I cant tell ya why ,but every mack engine with a dynatard cam will do as you discribe I accept it they have been that way since Ive been working on them!But When you think on it, as the slave fills on the dynatard it takes up the 24 thou set plus 70 thou so there in lies the depression just before tdc. It likly lets the slave fill to its fullest extent ! Even if the engine has a jake or no jake the cam will have a dynatard bump for the most part!The DT cam is standard issue no matter which brake or if no brake is installed!The E 6 came without no brake cam earlier on ,but as time ticked on it was standard on E6 engines reguardless ,all came with the depression and bump.E7 it was always standard issue.

We used the overlap method just as you told us to do. THANK YOU! None of us knew about the cam deprssion and thats where things went wrong for us. We set em and then checked em found the 70 thou and set the exhaust again. Hence no compression. ( Dumbasses! ). lol Thank you again for your help and especially the explanation of the cam cause even though we got it running we had no idea why this was happening wich drove us all nuts. Now we will be able to sleep tonight. Thank you again

"i would go out of business before going to volvo "

You may feel this way but the executives at Volvo don't hear it or don't care. I work for the company and feel I'm pretty outspoken about my feelings. There is a line I can't cross because I still need this job (until they move). Tell the company how you feel as customers. (although it's probably to late)

"The customer is the foundation of the business" It's on the back of all Mack business cards.

There is now way Mack will be the same in Greensboro. I'm in the middle a fighting a design change that Volvo has engineered on the Mack's. None of the Mack engineers feel it is the right solution for our Mack Trucks. Mack had this design ten years ago and went away from it. So far we have been told Volvo has done it for years so its going on 2010 trucks.

I feel passionate about the company I work for. I have pride in the Mack brand. That is something that does not exists in Volvo.

It really shows in the product with Volvo that there is no pride or passion on the part of the employees. That is unfortunate however I have found that it is all to common with anything these days. Maybe you should let the executives read this thread and then they will have a good idea about how people feel on this. Mack trucks in my opinion is a company that is steeped in tradition and pride, while I agree the new Macks are not the same as yesterdays they are still a damn good work truck. Macks are built to go to work not just look like theyre going to work. Volvo needs to realize Mack customers are for the most part very brand loyal. The selling of HQ and the obvious people such as yourself that will lose thier jobs will obviously change the truck hence changing the way alot of customers run thier business. This is not unoticed by Mack customers in the midwest around here people are planning on and purchasing used Macks with future needs in mind. Alot of parts vendors are also picking up the PAI line of aftermarket Mack parts. What Volvo did and the people they will leave behind ia a slap in the face to all Mack customers!!!!!!!

VOLVO NEVER EVEN HAD A TRUCK UNTIL THEY BOUGHT MACK NOW THERE DOING EVERY THING THEY CAN TO DESTROY THERE NAME BUT EVEN AFTER MACK IS GONE IF THAT EVER HAPPENS VOLVO WILL STILL BE JUST A PICE OF SHIT

I second that!!!!! Im not just sayin that because of my feelings about Mack. One of my customers who is a large carrier based out of new jersey and has one terminal here in Chicago has old CHs with over 800,000 on em and 17 '06 Volvos. The Volvo trucks are always! broke always! The trucks are an absolute NIGHTMARE!!!!! for us and the terminal. It really is a shame how those trucks are not only engineered but put together. Coax wiring, control modules, etc: Garbage. Meanwhile other than brakes and maintenance the ol Macks keep goin. Even the drivers hate em. They say the truck is comfortable but they cant stand how the trucks are always broke or at the dealer for a month cause even the Volvo dealer cant fix em. Have another customer with three '05 Volvo road trucks all under 400,000 he just traded all three in and bought one new Mack. Yes Mack is the most expensive truck out there comparitively, however people should remember "THE BITTERNESS OF POOR QUALITY LONG OUTLASTS THE JOY OF A LOW BID" ( read that on a post somewhere in this site the other day and think it just sums things up quite well ) Please forgive my rant but I just couldnt help myself, just cant believe our brand is being ruined by these m******s at Volvo.

Good!To add Another trick , mark the damper on the first three as the next three come up you don't need to watch the valves.

Ok its done and shes running. I noticed that when the engine is being barred over the exhaust valves actually begin to move down slightly just before you get to the mark then up when you hit the mark? this is where we went wrong in the first place, when we double checked things after setting the valves the exhaust valves had excessive lash so we were setting them there and then when you would actually hit the mark and the exhaust valves were open. Can you or anyone help me understand this?

The truck in the picture IS NOT MINE. I am just trying to know the Gross Vehicle Weight of this type of vehicle or similar. Thanks

I have three R models 1993 1997 and 1999 the 99 has spoke wheels(which are heavier than buds) its unladen wieght is 19,200lbs, the other two are 17,580lbs they are all twin screws the gvw on all three is 80,000lbs. The 99 has a tri axle loboy trailer and with special permitting in illinois often hauls more than that. Oh the other two have bud wheels. Hope that helps.

The marks should be on the flywheel the small cover on the bottom with 6 bolts !If you can't find em ,To get it close do it the old fashoined way !Valve overlap!Get the valves on number 6 rocking (one going down one going up!)

Set the valve on( one) move along in firing order ================= 153

========================== ========================= 624

see how I have placed the numbers above?? look at the bottom and set the top #/ then look at the top and set the bottom#!

It will run.Thous pistons are married to each other on the exsact same stroke doing a diffrent job at the exsact same time.

Give it a go it will run.

ok im gonna give that a try thank you very much. I will let you know what happens

Brother ,I don't really under stand your problem but !If your talking about the orings on the injectors they simply have done away with the lower oring on the injector it is not needed the steel washer seals the bottom and the first oring fom the bottom does not need to be there,As for your compression problem Its not injector problem !Your valveset or timing is out some where if you have no compression. Is it a vmac or mech governer.???If you get the oring in the wrong place the injecton line will leak at the head.

Are you sure the fuel is getting to the injectors!

Thanks for your response. The problem is compression not fuel its one of those deals where were overthinking. The seals are as you said they should be on injectors. The customer pulled his heads off and we got the truck in pieces! We set the valves over and over again. Settings kept changing? No mark on balancer and we cannot find the mark on flywheel. Guess were just gonna have to bring #1 up on compression and go one cylinder at a time. Timing is ok. Oh it is a vmac. The three of us here are just frustrated with this one!

Hello all, we are new to this site. We are a full service diesel repair shop in Elk Grove Village ill. We work on all makes of trucks and heavy equipment but primarily Macks. Wondering if anyone can help us on this one. We have a 1994 Ch613 with a 4 valve E7 and the injectors were rebuilt at a local injection shop and they sent the new seal kits with the injectors and the seal arrangement is unkown to us and the shop doesnt know what to tell us, the local Mack dealer wont help either. We went by our current manual(not mack specific) and the engine isnt getting compression . Please HELP!!!!