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Showing results 1 to 30 of 96
Search took 0.03 seconds. Search: Posts Made By: automch
Forum: Diesel Discussion 02-25-2025, 10:49 AM
Replies: 1
Views: 2
Posted By automch
Oil Pressure Gauge

So on a recent 2500 mile trip I experienced an extreme adrenaline surge. I was on Interstate 81 running between 75 and 80 and since I have a CDL, I frequently watch my gauges. Suddenly while I was...
Forum: Diesel Discussion 11-21-2024, 07:41 AM
Replies: 23
Views: 2,006
Posted By automch
Add a simple relay

A Simple solution to these older cars with deteriorated wiring is to wire in a relay close to the starter. Run a #12 wire from the battery connection at the starter to pin 30. Ground pin 86. ...
Forum: Diesel Discussion 09-04-2024, 06:32 AM
Replies: 14
Views: 596
Posted By automch
The paint marks will not re-align. Because the...

The paint marks will not re-align. Because the cam turns at half the speed of the crankshaft. Check your TDC on the dampner and the camshaft to cam tower marks and I believe you will find that you...
Forum: Diesel Discussion 12-22-2023, 10:25 AM
Replies: 39
Views: 2,336
Posted By automch
Only sure way to know

There is only one sure way to know if it is the vacuum pump and that is to remove it and inspect all components. If it fails it could destroy your engine. They have been known to break the timing...
Forum: Diesel Discussion 06-05-2023, 06:40 AM
Replies: 24
Views: 1,927
Posted By automch
1983 300SD Daily Driver

My 1983 300SD now has 629,590 miles on it and it is my daily driver. t goes wherever I go. In the past 12 months besides local travel it has been on trips to New York City, Dalton, GA and Southern...
Forum: Diesel Discussion 05-18-2023, 08:17 AM
Replies: 9
Views: 827
Posted By automch
Check Injection and valve timing and valve gap

I have an 83 300SD that I bought new and now has 629,000 miles on the original engine and trans. I consistently get 25mpg in local driving and 28 - 29mpg on the highway. You need to adjust the...
Forum: Diesel Discussion 12-17-2022, 11:54 AM
Replies: 7
Views: 867
Posted By automch
Check your valve clearances and injection timing....

Check your valve clearances and injection timing. Both can cause what you describe.
Forum: Diesel Discussion 07-09-2022, 06:00 AM
Replies: 18
Views: 2,779
Posted By automch
Just how hot is it getting? Does it boil over or...

Just how hot is it getting? Does it boil over or is it just the dash gauge saying it is hot? Sending units and gauges can fail. If it actually is overheating do not allow it to get above 230...
Forum: Diesel Discussion 05-19-2022, 04:52 PM
Replies: 4
Views: 811
Posted By automch
Yes it would. I suspect the caliper is most...

Yes it would. I suspect the caliper is most likely your problem.
Forum: Diesel Discussion 03-10-2022, 07:20 AM
Replies: 18
Views: 1,340
Posted By automch
As a professional Mechanic of 50 years I have...

As a professional Mechanic of 50 years I have encountered this many times. First spray with PB Blaster penetrating oil. It simply is the best let it sit for at least 15 minutes then slightly, ever...
Forum: Diesel Discussion 03-08-2022, 06:55 AM
Replies: 47
Views: 19,158
Posted By automch
Wheels Are Interchangable

Gen 2 wheels are direct bolt on to replace the 14" Bundt wheels. As are the larger front brake rotors and calipers.



Why would you want to put 14" Bundt wheels on a Gen 2 and replace the 15"...
Forum: Diesel Discussion 01-18-2022, 08:19 AM
Replies: 6
Views: 788
Posted By automch
Some tips

Be sure to flush the lines and allow them to dry. The main reason R4 compressors fail is lack of lubrication. I learned this trick working in a Ford Dealership in Ft Lauderdale in 1995. Ford was...
Forum: Diesel Discussion 08-07-2021, 12:14 PM
Replies: 7
Views: 1,307
Posted By automch
Intelligent Engineering

Only a German engineer would think of a 2 piece turbo drain tube where the top half fits over the outside of the bottom half sealed by an "O" ring in such a way that when the "O" ring leaks the oil...
Forum: Diesel Discussion 06-03-2021, 08:29 AM
Replies: 2
Views: 433
Posted By automch
Location

Where is it located?
Forum: Diesel Discussion 11-19-2019, 08:46 AM
Replies: 43
Views: 3,107
Posted By automch
Benefits of 3000 Mile Oil Changes

As a professional ASE Master mechanic with 47 years professional experience, I have been told many times that I am wasting resources by changing oil and filters every 3000 miles. My 1983 300SD...
Forum: Mercedes-Benz Used Parts For Sale & Wanted 11-05-2018, 08:41 AM
Replies: 30
Views: 2,682
Posted By automch
How much for injection pump?

How much for injection pump?
Forum: Diesel Discussion 12-29-2017, 06:32 AM
Replies: 4
Views: 855
Posted By automch
Most likely the driveshaft rubber flex disks.

Most likely the driveshaft rubber flex disks.
Forum: Diesel Discussion 02-18-2015, 06:59 AM
Replies: 20
Views: 1,912
Posted By automch
Hi Matthew, I am a Retired ASE Master Technician...

Hi Matthew, I am a Retired ASE Master Technician and am willing to look at your engine for you. I am 2 hours from Atlanta in Anderson SC.

First though a couple questions:
1. What brand and...
Forum: Diesel Discussion 08-17-2014, 08:18 AM
Replies: 27
Views: 2,175
Posted By automch
Thanks for all the comments! Some of you asked...

Thanks for all the comments! Some of you asked questions so I will try to answer them all now.

A little history, I bought the car new and have maintained it myself ever since except for the 1500...
Forum: Diesel Discussion 08-12-2014, 06:26 AM
Replies: 27
Views: 2,175
Posted By automch
Milestone 500K

On a trip to and from Nashville last week My 83 300SD turned over 500,000 miles! Original motor and transmission. Neither ever rebuilt! Shows how good maintenance and taking care of the little...
Forum: Diesel Discussion 06-18-2013, 04:29 PM
Replies: 1
Views: 554
Posted By automch
Question W126 300SD monovalve pulse rate

Does anyone have the pulse rate range for the climate control monovalve? I know it varies with the temperature and settings when the heat is on.

I am working on something that many of you may...
Forum: Diesel Discussion 03-09-2013, 06:25 PM
Replies: 6
Views: 1,448
Posted By automch
Angry Adsit "Sheepskin Seat Covers"

Please beware that these sound too good to be true at $99.00 each. But after my first set of sheepskins lasted 14 years and then the second set made it until now that's 16 years and both were $500 a...
Forum: Diesel Discussion 02-19-2013, 10:54 AM
Replies: 262
Views: 22,748
Posted By automch
It is remotely possible that the crank and...

It is remotely possible that the crank and bearings were starved for oil when the pan was bent resulting a partial seizure and thus stalling after a mile. If the crank and bearings are galled it...
Forum: Diesel Discussion 02-15-2013, 08:30 AM
Replies: 7
Views: 1,002
Posted By automch
Have someone ride in the passenger seat and see...

Have someone ride in the passenger seat and see if they hear it from the same direction. Noises can be very difficult to pinpoint as the sound travels.
Frequently the center bearing will sound to...
Forum: Diesel Discussion 01-21-2013, 08:14 AM
Replies: 23
Views: 3,288
Posted By automch
Great idea and a clear instructional. Thanks. I...

Great idea and a clear instructional. Thanks. I am interested in your dimming circuit if you would be willing to share that tidbit also. TIA
Forum: Diesel Discussion 01-06-2013, 05:40 AM
Replies: 21
Views: 10,543
Posted By automch
As an ASE Mechanic with experience starting in...

As an ASE Mechanic with experience starting in the 60s I am very familiar with that lift. It is rugged and reliable. After reading the replies I do have this to add:

1. Shop air typically is 175...
Forum: Diesel Discussion 01-03-2013, 06:07 AM
Replies: 8
Views: 1,498
Posted By automch
GM 15SI 90AMP

After replacing 4 bosch alternators (2 were bosch factory remans at really premium prices), I installed a GM 15SI 90 Amp unit with dual pulleys from a mid 80s GM. I cut the bosch plug off and...
Forum: Diesel Discussion 11-15-2012, 06:20 AM
Replies: 34
Views: 3,864
Posted By automch
I have used Astoria 3000 with total sucess. I...

I have used Astoria 3000 with total sucess. I have used Dorman with the spreader and broken more than I was sucessful with. My advise is Astoria only. Good luck.
Forum: Diesel Discussion 10-10-2012, 06:06 AM
Replies: 232
Views: 24,472
Posted By automch
Here is an application chart of Benz diffs, hope...

Here is an application chart of Benz diffs, hope this helps:

Years, Model, Engine, Differential Ratio, Differential Case Size, Ring Gear Size

R107
1st Generation mounting
1972-1980, 350...
Forum: Mercedes-Benz Cars For Sale 08-22-2012, 05:00 PM
Replies: 3
Views: 1,162
Posted By automch
Guess I missed posting the asking price. It is...

Guess I missed posting the asking price. It is $4200
Thanks
Showing results 1 to 30 of 96
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