theakerstwo

The 673C is a 250 HP

And when Appling pressure keep you head away from the plug.I have had them to shoot out of there like a cannon.It happens sometimes.You will never hear it say get out of my way cause i am going to blow up.I never use more than 20 lbs on the system.You can also leave the intake connected to the engine and with pressure on the system rotate the engine slow till the pressure gauge reads the highest.There will always be some valves open leaking pressure down but i have found many leaks on the intake manifold by pressure that may not have been found otherwise.Be safe and the method of spraying starting fluid around the hoses is not a sure thing.

What happened to the old turbo? did it blow up or just stop making boost?

I have seen cement mixers with this on them and i am thinking it just to by/pass the cooler when not under power to keep the intake air warm.It does not take warm air off of the exhaust but only keeps the cooler from cooling the intake air when not needed .I see no problem with removing it.

I think your talking about the engine mounts but just jack trans up.

Joey is thinking of a sticking rack and he may be on to the problem.

To me only thing that is as good as mack rears would be the Meritor/Rockwell RD40-145

And i can remember when in 1968 freight liner here was 11.00 per hr.When i started to work on trucks it was in early 1965 and mack was 5.00 per hr and in less than a year they went to 5.50 per hr.

I had a bad shaking in the front friday and could not decide for sure what it was untill I stop and started to look.It did not feel like the front end but found a lot of mud in my left front steer rim.

I hope he didnt try taking one of the chambers apart because he may not be around anymore.

Also does the idle pressure come back up with new oil and filters?If it hold about 55 to 60 psi when hot at 1900 to 2000 rpm there may not be a problem.

Should be close to 20 psi.

I am helping a friend change blocks.

I can not find my E6 four valve tune up manual.I am needing to know what the pump timing is and its a 89 350. 18 degrees comes to mind but i cant guess at that. This is a robert Bosch pump.

On 5/22/2022 at 6:40 PM, mowerman said:

Also I am waiting for a Nevada to jack up registration on electric jobs I am sure that next since they’re not getting their way overpriced  tax dollars from these folks…. Bob

Guess what i heard to day on the news that congress is trying to start charging tax for the music you heard on the radio.

A 335 did not have a aftercooler but many installed them in later years.

I want to hear more.

Quick trip dropped to 4.99 today

Diesel here in Tulsa is 5.09 today at Quick trip so i think in a few days they will start to give it away.It was 5.79 for a couple weeks

I was around B models when they were ever were.It was common to see a heathy driver with his shirt or jacket worn badly in from around his belly were the steering wheel rubed.If it has power steering or air assist on it a smaller steering wheel may be the way to go.

1 hour ago, BOBWhite said:

Might be a dumb question but there are two different shift patterns for the Mack 9 speed, did they change anything mechanically when they changed this? Ive driven the old pattern of 9 speed but should I be shifting it in the new pattern? If you can change how you shift in the pattern then what the difference between a 10 speed and a 9 speed?  Its probably all in the high low shift box but what's is best for this transmission? Thanks 

Same trans but new shift pattern will let the rear box range at a slower road speed saving the shift clutchs i think.

I think there was a four row and a three row.But you can get a five row replacement core.