JoeH

On 8/28/2025 at 6:19 PM, mechohaulic said:

If I  am thinking right ! ( really after two yukon jacks );; esi is for Extended  Service  Intervals . ==2 spin on oil filters  :: the ESI + is 3 spin on filters ???  . don't recall where the main feed line to older large filter went to engine block ?/

You are correct, but hes working with what appears to be a remote oil filter system, which I'm unfamiliar with.  The size of the oil pan also plays a role in ESI/ESI+.  The. ESI+ is 56 quarts, the ESI i think is in the 36 quart range

On 8/24/2025 at 4:53 PM, Joey Mack said:

Is it possible that the mounting on the block is the same as well as the porting,and the manifold that mounts to it determines if it is ESI or not as well as having an oil port for a turbo?  

Im not sure that you have an ESI engine. Your block is different from all of my ESI and ESI+ engines.  I dont have the piece with the green masking tape on it in your pictures.  Most of my ENDT engines have spin on filters, but I do have one with a different filter set up with hoses running weird places, much like I suspect you have there. I haven't looked at it to compare the block on that engine to yours.

Can't upload pictures for some reason.

I think youre going to be into an ASET AC engine with egr crap on it.  How heavy are you talking? Its only a 12 liter engine, so it lacks a certain torque found in other brands.

You low on fluid? Where are you operating?  We were in 90° temps, now we have 70°s.

On 6/10/2025 at 9:56 PM, Mackman87 said:

If I’m not mistaken the ratings only changed if a cross brace was added to the diffs. One running from frame across to carrier. They made a random 50k setup as well in the 90’s, the end of the axle looked like a Rockwell though. 

My '95 has the transverse torque arm and 44k rears, my 2003 has the transverse torque rod and 46k rears.  Don't think that's it.  Probably just re-ran the engineering numbers when Volvo bought Mack and uprated them.  

Try spraying wd40 on things next time it happens. Our old 1960s forklift the distributor cap and spark plug wires don't like rain, but it'll run if you spray some wd40 on it.

23 hours ago, Joe2007 said:

What’s the best way to check for boost leaks? 

High pyrometer temps (1100+) and low boost mean not enough air. My e7-350 went from 1200+/22psi to 900/35 when I found/replacedy cracked CAC.

7 hours ago, fjh said:

Terry !   runs good not smoking out anything

Check boost, could have a crack in the Charge Air Cooler. My '95 e7-350 was a whole different engine when we replaced our cracked CAC. Went from 22psi to peaking around 34 psi under certain conditions.

Pull heat shields covering the EUPs. Warm up engine, loosen one wire screw on each EUP, one a time. (Don't remove screw, just loosen. They're not designed to come out). Remove wire, you'll get a spark, no big deal.  Listen for an EUP that doesn't make a change in engine sound.  This is how you do an injector cutout test on these engines. Not a bad idea to pull all the EUPs and inspect.  Pull the EUP cam followers as well.  My 2003 engine had 3 bad EUPs, 2 had broken springs, one failed electrical component.  2 of my cam followers were bad, almost lost the camshaft but caught it just before major damage was done.

If it's Mack Camelback then it likely has an "automatic" style inter-axle lock.  As a wheel starts spinning the inter-axle lock on the front of the front driver will start engaging, giving a torque bias towards the axle that still has traction.  If one wheel on each drive axle spins then you're stuck, unless you have the momentum to carry you through the slick spot.  While Mack also made differential locks almost nobody ever ordered them as an option, so your chances of having differential locks is about 1/1,000,000.  But I believe all Mack tandems and camelbacks have either automatic or air operated inter-axle locks.

Any fault codes?  Does your lightning bolt work?

Loooong shot but does anyone have experience putting an electronic transmission on a mechanical engine?  I have a 1988 RD690S with an EM6-300L and a 7 speed Mack trans.  We're rebuilding a volumetric mixer for this truck, and I'm wondering if I could modify the truck to run an Allison HD4560p transmission.  I have a cable shift HT740 which would be easy, but it only has a PTO on the top which is a horrible setup.  Useless.  

Pros of auto trans:  PTO isnt clutch dependent.  Can put any idiot in it to drive. 

Cons: grafting the trans and engine to work together.  

From what I can figure so far, I'd need a flywheel/housing, Bell housing, etc, Throttle Position Sensor adapter, and a few other sensors to feed into the Transmission Control Module.

10 hours ago, Mackman87 said:

 

here is a pic of tank setup prior to stripping truck down

Just put spacers between the air tank brackets and the frame.  That's what we did on our 95.  Or you can cut a V out of the brackets, fold the tank out to close the V's and reweld.

My experience with E7 engines is fantastic longevity, poor torque.  My experience with E6 engines (ENDT676 more specifically) is fantastic torque and power.  I had a 2001 ETECH 400 in 2015 and it was a dog, but it got where it was going.  1995 E7-350 we currently have is pretty good, but it doesn't have the torque to pull through hills.  Same as my 2003 AI-350.  They get up hills, but they don't get to the top very fast.  Reality is modern trucks have 20+ years of tech advancements and 2-3 extra liters of displacement.  This engine won't match that.

Hardest part of these trucks is getting the intake system apart and back together.

Your dead cylinder is gonna be a broken lifter, which wiped the lobe off the camshaft.  Berry Cams I've heard can reweld/fix the lobe, no experience with them though.  Alternatively you may just have a bent rod, but id expect the lifter.  They have a hard carbide face that cracks, falls off and leaves a lip that slices the lobe off pretty quick.  Fantastic engine.  But this is the weak spot on them.

https://bucks.crimewatchpa.com/newbritaintwppd/34878/post/mcsap-detail-12

Local DOT stop around the corner from us. Pretty good haul for our local boys this last week! 

I know the ETECH and ASET engine computers shut off if voltage drops below 9.5 volts.  You have to watch for voltage during cranking.  Not sure what your issue is though, you didn't state what problem you're having.

What year and model are you working on, and which engine?

Giving it a second read, first line is "unemployment claims". At 5?  Doubtful... Could be an overly broad DOGE statement...

11 hours ago, kscarbel2 said:

An initial DOGE survey of unemployment insurance claims since 2020 has found:

 

1.      24,500 people over 115 years old claimed $59 million in benefits.

 

2.      28,000 people under the age of five claimed $254 million in benefits.

 

3.      9,700 people with birth dates over 15 years in the future claimed $69 million in benefits.

 

In one case, DOGE found someone with a birthday in 2154 who claimed $41,000 in benefits. 

 

“Your tax dollars were going to pay fraudulent unemployment claims for fake people born in the future. This is so crazy that I had to read it several times before it sank in,” says Elon Musk.

 

I'll give a certain benefit of the doubt regarding those under 5:  severe disabilities?  I suspect this DOGE post is overly broad, there's probably circumstances that could warrant sub 5 year olds receiving some form of some vague entitlement program within social security to offset some disability they were born with. 

I have a daughter (2 years old) on state insurance to cover county provided Early Intervention therapies. She got stuck during birth and has some oddities resulting.  Just wrapped up 1.5 years of physical therapy, working on speech therapy now.