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Been my experience EGR engines do not have air compressors fed from intake manifold air. Macks seem to draw fresh air from tapping into the ducting somewhere between the air cleaner and the turbo inlet. Usually with a rigid steel line and a couple little leghths or hose on both ends. Great idea as the rigid steel line often rotted or clamps rotted off it and it'd wear through and basically allow the compressor to have no filtration. On the other side ??? those compressors are pretty much bulletproof other than maybe replacing the head assembly . That being said, still doesn't change that short times between cycles is air leaks somewhere after the air compressor discharge port. They can be tricky. Sometimes you may think a little tiny leak means nothing.....but they do. -
lol same here tom started working nights in 76 not but freedom after that to do anything bob -
Yes, I was speaking only of Connecticut. Laws/Statutes very from state to state. Research and arm yourself with as much knowledge and understanding of what you're there for. As frustrating as it can be, remain professional and polite. Sad to think that a customer possibly would have more knowledge than the person getting paid to work and administer registrations. But, registering a former commercial vehicle is still not that common and confusion can interfere with the transaction. -
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Matt, Thank You for getting this topis back on track!!!!!! The state vehicle inspection laws vary from state to state, so a person has to do some research, online where you can bring the laws up in print, into their home state's laws. The majority of the time you can get good advise, either in print or where to get it printed, from an ATHS or ATCA chapter president. Always take these print outs with you to a DMV office as you probably will have to educate the idiots behind the counter. When I went from a Vermont registration to a South Carolina title I had to make an appointment with the DMV for one of their officers to come out to my garage to verify the serial number. Luckily she only wanted to see the plate on the cowl, not crawl behind the front wheel to see it on the frame! Obviously the vehicle must be able to pass a roadside inspection whenever you are operating on a public highway. As Matt says always pull across the scales at weigh stations so the officers can SEE your antique/historical plate. If you get pulled around back it is more than likely the officer just wants to BS about your truck after he checks your lights... AND will be in a LOT better mood than if he chases you down along the road!!!! -
That is one of the reasons I buy London Broil or Round roasts!!!
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By Geoff Weeks · Posted
Wabco SS318 compressor. Most "compressor problems" are air system problems, not the compressor. People want to point the finger at one part, even if it is expensive, rather than take the time sort out why the compressor is popping off all the time, and passing oil. Intake of the compressor fed from intake of a turbocharged engine, means that even on the intake (downstroke) the pressure above the piston is above the crankcase pressure. This helps reduce oil misting in the outlet because there is no "vacuum" trying to draw oil up past the rings. A N-A compressor inlet does see a vacuum above the piston and can, under some conditions draw oil up past the rings. However that is not how most oil makes it to the compressor outlet. The block of the compressor is not water cooled, or really cooled at all. Only the head has coolant passages. Bendix list the normal outlet temp as "less than 360F" this is after the air has passed through the restriction of the exh valve port. Air temp and any oil vapor will be above that in the cylinder of a working compressor. Even engine oil will vaporize at those temps. Some will start to oxidize into hard coke. Vapor will pass out and condense back to liquid. There is a reason that duty cycle is limited to 25% MAX with lower being better. When air is not being used, running down the highway, you should go 15 min between cycles minimum. Just sitting idling blowing off every 2 min means it is almost continuously compressing. THIS IS WHAT YOU NEED TO FIX! when that is taken care of, the oil in the drier will be gone also. Being a single cyl compressor, and coke that gets stuck on the exh valve seat would prevent it from compressing at all. So that is not your problem. However it does sound like there is some leakage back through the discharge (exh) valve if you hear air leaking back through the compressor when the truck is shut off. There may be some varnish build up preventing a good seal and allowing the air to leak back through. However, unless you address the root cause, you'll be right back where you started in short order. How long does it leak? Could you be hearing the unloader leaking? The gov will supply air to the unloader when the system reaches full charge (120 +/-) and should stop supplying air once cut-in pressure is reached (usually 20-25 psi below cut-out pressure). If it only leaks for a short time, then put a pressure gauge on one of the unloader fitting on the gov, or the unloader line to the air drier and see if when that pressure drops to zero, that is when the air leak stops. -
Honestly, CT DMV is a complete nightmare. The knowledge of the average worker is so low regarding the applicable statutes. Classic Vehicle plates are nothing new, yet the misconceptions of what you can and can't do with a vehicle registered under those plates is considerable. There is no longer a requirement from Connecticut to have a full vehicle inspection. In the past, you had to get a temporary registration (Paper plate) that was good for 30 days and physically bring the vehicle to a DMV office for a full inspection and VIN check. Currently all you need is a VIN verification, which can be done at most dealerships, and add that to your application. As I see it, there are no restrictions as to what you can do, carry or trailer with the vehicle so long as it's not for hire or compensation. I ran into issues two years ago while trying to register my B73 in CT, with a clerk telling me I needed a signed affidavit from the previous owner, who was now deceased, and that I couldn't carry anything in or on the truck. I asked her to show me in the Title 14 Statutes where it states that and made her also get her supervisor as she had no idea what she was talking about. After some discussion neither could produce any statute stating these restrictions. As for the temporary registration, technically you do need one to bring it somewhere for the VIN verification if you are driving it on public roads. To register a vehicle in CT you need the following: 1. Title or Bill of Sale in your name. CT does not require a title for a vehicle over 10 years old. There is NO affidavit requirement for the Bill of Sale. 2. VIN verification. 3. Proof of insurance. 4. Registration Application. The DMV site has fillable forms you can complete and print out. The Classic Vehicle plates exempt you from a CDL requirement, fuel tax stamp, Federal inspection. Obviously, having the vehicle in good roadworthy shape is still a requirement, as equipment and safety violations will still be enforced as with any vehicle. You don't need a commercial or apportioned registration to travel inter or intra state if you're going to go far and wide with your vehicle. I have traveled extensively around the northeast and to Virginia and Colorado and never had any issues. As for weigh and inspection stations, I usually pull in and get waved through or had some pleasant conversations about the truck. When I've passed them, I've never been chased down and pulled over. That's not to say you won't ever be stopped and questioned as there are officers out there that aren't aware of regulations or may question your intent. When you do go to DMV, have a few extra helpings of patience and arm yourself with as much knowledge as you can to get what you came there for.
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- I double sticked and old Mack to feed a stone crusher in 12 and 14 hour shifts six days a week all summer to pay for my chemistry degree.· 0 replies
- Because I wanted to sleep for 1 min and 26 seconds each trip out of the quarry at the crusher's vibratory dump box at the top the quarry during those 12 hour shifts, I bulled the old MACK up long 20 degree and sometimes steeper grades.
- THAT meant that I split each gear 1, 2, 3 after coming out of boggy low.
- All I did was rev to the right engine note, reach my left arm down through the steering wheel to hold the curve I was on or hold the truck's path steady; slip out of 1st, throw the 2nd stick high into low and slip into 2nd gear... rev to the right engine pitch, slip to high.
- Then when it was time, reach through the wheel again, slip high to low and 2nd to 3rd {if I correctly remember 60 years ago}.
- The Igneous rocks were too heavy and the grade too steep for me to ever get into 3rd high.
- The crusher team were the mechanics for everything and had replaced the old Mack's tranny gears because they had been ground too much. - - They later told me they didn't believe me when I told them I slipped all my shifts because the gears showed no wear.
- Except for start and stop; Not once did I use the clutch because that made my leg ache too much after an hour or so.
- I slipped all my standard 4 speed shift vehicles all my life...just to be with the music of the engine and car or truck.
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- I hardly ever change disc pads or brake shoes because I always slipped my gears downshifting...· 0 replies
_ I learned that because the synchro rings got shot on my 1968 Volvo 122S 2-Door 4-Speed with an electric overdrive because I stupidly speed shifted and ruined them. https://bringatrailer.com/listing/1968-volvo-122s-17/
- [Note: That Volvo's original owner was a Canadian Submarine Captain who rallied it and that is why it had Volvo's unique electric overdrive.]
- {I clear coated over the bone white with Cadillac Firemist Green and painted the grills Black because they were dented...gosh it was stunning.}
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