Joey Mack

the intake bridge has a small arrow on the side, this indicate's 'out' flip it over to see the holes for the valve stems, one is round the other is an oval. May I suggest, dropping the oil pan and inspecting the cam.. if you hear something sliding in the pan when you drop it,, more than likely its a roller.... Definatley inspect the cam and lifters thoroughly.. good luck.. jojo

if you have power leash, you set the lash to .045" on the inner portion of the exh. rocker arm, and leave the feeler gauge in place, then set the rocker arm lash to .024". rotating the engine is the same procedure.. be absolutely sure you are on the correct cyl. when making adjustments. this engine has ceramic roller lifters for the valves. any 'slap' will crack the roller, then the cam will get chewed up, instantly after starting the engine. jojo

I pick at when I can... new glass and some rustoleum on the floor pan.. he runs really good, and strong, for an oldy. when I stab the throttle i can feel the torque.. I have to fix the brakes and replace the wiring, gonna leave the original wiring in place so folks can see how it was built.. I know I posted this in other threads, I guess I will just stay here.... Proud to have him, jojo

this Boy likes to ride!! Meet Valentino.... 'Tino' jojo

tThia

+ and - ??

yes sir, me too... I fixed an incorrect post I made,, the year and the engine dont match in my mind, so i fixed my post to match the engine I see and not the model year... jojo

I realized that I posted wrong info about the series, I fixed it. sorry,jojo

this is a V-Mac 1 truck. the sensors are: oil pressure, coolant level + temp, ... i probably forgot one or two. What has me curious, is the year, '98... I dont recall an all mechanical injection pump.. for some reason I thought that in 96 they were V-Mac II and had the electric governor housing and an F.I.C. module in the cab.. ok.. Jojo

10 years total at 2 different Mack dealers.. and the truck you have is one that I have worked on since they were born.. I luv em'... I work for myself as a mobile mechanic here in central N.C. for the last 13 years... I have worked for a few fleets that were Mack and Freightliner powered.. I don't mind telling my experience..... I like this site for many reasons, but a big one for me is that I learn a lot, and occasionally, I help someone.. I will try to keep my answers easy to understand ( no offence please).. . I also have a large library of Mack books. P.M. me anytime in the future... if you feel the need too.. Jojo

sounds good... I bet there is a loose connect in the circuit of (J1.26...).. jojo

you have access to some important info.. I bet you get it done... jojo

you too funny..

ok. eng. computer.. when looking at it. the plug on the right. there is a sharp steel bail that holds the plug in tightly. you can use spray lube to free it up, not too much. if any gets in the socket blow it out with air. when you release the bail, you lift up and tilt the plug to remove it, they have tabs on the end opposite the wires. you may still have a bolt holding the harness' together. remove it, you may need to unplug both of them to do this... no biggie, just be cautious... the vehicle computer is behind the steel kick panel in the cab , right side under the fuse panel.. T-27 torx bolts hold it on, pull back the floor mat to get the lower bolts.. jojo

i forgot... the J1 plug is the one on the right.

have you removed the J1 plug and inspect the pins? #26 specifically..do you have a helper who can watch the light, while you gently move the J1 plug while running ,without unplugging it?

no sweat.. if you have questions, post pics with them when possible.. The reason I posted about wire I.D. is to show you how helpful it is to follow the circuit. jojo

Just in case you chase wires in the cab. They will say VJ1-2or3, then wire # then a letter, (a,b,c) for example.. those represent intersections in the wires, and then the wire size will be the last #.. The V stands for V.E.C.U. jojo

its the J1 connector on the engine computer.. the printing on the wires is Identification. ie: EJ1-26-0.5 means ' plug J1, wire #26, 0.5 is the wire size.. this is likely the ground circuit.. notice other wires have different wire #'s. they too are associated with the pin location in the plug. very hard to see the numbers on the plug. I need a magnifying glass, now that I'm older... keep in mind when you read a schematic, generally , the top is power in and the bottom of the diagram is the negatives.. this particular diagram is a bit different, jojo

I have never used that one. I did witness a NAPA filter explode. I was on a road call, 90 minutes away, was diagnosing fault codes, and while trying to duplicate the problem, the centrimax blew it's top... I wasnt even there an hour, well that ended my road call. 90 minutes back to the shop. They needed a new cover and spindle... Oh yeah, I did stay and help clean up the oil... jojo

Well... I looked in the book shown, my E-6 2 valve book, and my E-6 4 valve book, and cannot find the lifter part #. The book i posted does have a ton of part numbers for all areas of a Mack and even midliner info. I was lucky enough to have a friend at Mack, who was willing to print this for me.. There is a lot of E-6 part numbers in it... jojo

Thank you very much! I guess I will put a rack body on it and drive it to the grocery store and run errands around town. We have a few truck shows close by, I hope to be in them, and maybe Parades. I have to get the brakes working, and replace all of the wiring. (I will leave all of the original wiring in place so when I do go to shows, folks can see how it was made back in 1948). I also need to find some mirrors. I just put the glass in it last week. It runs good, I have driven it in my neighborhood, I used the hand brake to stop it .. jojo

right panel that says vision... pull it off and look inside....

I guess when I get this one done, we will get a pete

Amen! She say's she still loves truck's She want's a Canary Yellow long nose Pete with Bug eye headlight's just to go buy groceries... I still cant sell her on a Superliner... oh well