Is your OM617 Timing chain stretched out? How to check it the quick way using cam marks.

Рет қаралды 2,714

Күн бұрын

Checking cam timing chain stretch on my 1982 Mercedes 300D with the OM617 Turbo Diesel.
This is the cam tower mark method, not the 2mm lift, so it is not a foolproof 100% accurate method, but was just what I needed to ease my mind before taking a 1500 mile road trip.

Пікірлер: 18

@russmiller1418 2 жыл бұрын

Your video is the best I have watched. It's inclusive of the entire process without being over killed. You did a thorough assessment and a great video. Thank-You!!

@trythistv 2 жыл бұрын

I try to include all the relevant information without making it excessive, I like to talk about my cars so that can be a challenge sometimes 😂

@countryguywithcamera 2 жыл бұрын

Wow notification squad, 1st over here 🤘🤘 Loved the video, your videos really helped getting started working on my 300d

@trythistv 2 жыл бұрын

Glad they're helping! There is more on the way!

@dougneiman5647 2 жыл бұрын

Your shop looks beautifully organized! Very informative video

@tiffanyevans3899 2 жыл бұрын

Courtesy of meeeee. I am always finding new ways to organize and increase storage options.

@ebutuoyebutouy 2 жыл бұрын

Thanks for sharing. Stay safe. Please, never rotate the engine backwards.

@trythistv 2 жыл бұрын

Good point that I left out! Only clockwise as viewed from the front of the car.

@vintage76vipergreenBeetle 2 жыл бұрын

👍

@kyrianlandry8939 7 ай бұрын

Thanks a lot for that video, I have a w123 300d with 450000 km, and there is 0 degrees off, so I don’t know if it’s a good thing or not, considering the fact that I have an oil chain tensioner… Thanks again for the video

@trythistv 7 ай бұрын

I'd say there is a good possibility that at some point your timing chain has been replaced, or at the very least there might be an offset woodruff key in the cam to correct stretch. They do last a very long time typically.

@bostonmish4533 7 ай бұрын

You really ought to check which offset key you already have installed. If you now have the "0067" 10d correction key in there, then together with the additional 7d which you discovered during this video, they add up to a 17-degrees - a pretty much worn out chain and a big liability. For reference, jumping a tooth would move the cam by 18 degrees. If, OTOH, right now you only have the 4d key installed, then you should install the 10d key in its place, which would put your chain at 1 or 2 degrees ATDC (and your chain is still on its last miles, but not immediately). Remember, your IP timing is also affected by this, and right now it is 7 crankshaft degrees away from spec.

@trythistv 7 ай бұрын

I agree, I actually bought a new iwiss chain, crimper and all the tools to replace my chain, but I checked the IP timing and it was dead on 24 degrees, I tried advancing it slightly to 28 degrees and it basically made the car noisier and harder to start in the cold but no difference in performance characteristics, so I set it back to 24 degrees. I should check what that key is though, and maybe just change the chain out over the winter while I'm doing less driving and can pull it inside.

@KaiErst-hg7hz Жыл бұрын

Thx for your good Video , maybe you can Help me . I have 200 d w 123 year ,1982 and before 1 week Motor have some ticking noise Tick Tick Tick constantly . Valves are OK . What can IT be thx alot

@trythistv Жыл бұрын

I would check injectors. If one is streaming or not firing like it should you will have a noise that is commonly called "nailing", a high pitched tick or knock sound that is from incomplete or improper combustion. I would start the engine, and then crack loose the nut on each injector line one at a time, that way you can narrow down which cylinder the noise is coming from, and that might point you in the right direction!

@KaiErst-hg7hz Жыл бұрын

@@trythistv thank you alot i will check this

@grizzladams Жыл бұрын

What is the spec/tolerance?

@trythistv Жыл бұрын

After 50k miles there should be about 2 degrees of stretch, there are offset keys available to correct up to 10 degrees, so if there is more than 10 degrees of stretch, the chain cannot be compensated for and would require replacement, I'd likely do it before it gets quite that far as it does affect injection timing as well