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Yeah I found that great post. Sent from my SAMSUNG-SM-G930A using Tapatalk

Yes. The valve core. I was guessing it was optional. Sent from my SAMSUNG-SM-G930A using Tapatalk

My left rear tire is leaking down slowly over 2 days or so. I initially found a leak where the kneeling valve meets the valve stem for the tire. After disassembly re-assembly there I found the kneeling valve to be leaking. Cycling the valve seemed to only make things worse. Tonight I took it...

Wow I wish I knew earlier. The gasket is half what I paid.

ok after some google searching I found the local cat dealer has it for some $38 and I did find one for under $20 shipped so that's a good deal. Is there any pressing reason the dealer sells parts so much higher than available elsewhere? Should I worry about getting sub standard parts?

On some other posts people talk about replacing the valve cover gasket. Do you think that is necessary every time I get in there?

Has anyone found any documentation on the valve adjustment interval? I can't find anything for road going vehicles only the marine engines.

Ok Cat recommends 250, 500, 1000 hours for service. The formulas I'm finding online are like: As far at what you were asking: Just use the figure 1 mile per minute, no matter theengine speed. One MPM = 60 MPH since there are 60 minutes in an hour. Thus, your 4,000 hours on the hour meter would...

After more reading about the procedure and "special" tools required I found this great article. http://schoolbusmechanic.blogspot.com/2006/08/diesel-mechanic-cat-3116-valve-and.html It looks like the only tools required are: *Dial Indicator # 1U-8869 *Contact Point # 9U-7274 *Feeler Guage #...

Looks like I need to call my local Cat dealer and price some tools/service.

Ok I just read the procedure. It says to insert the timing bolt. The required tools does not mention this bolt. It looks like a longer version of the plug bolt. Does anyone know it's size?

I just found a cat 3116 for marine engines and it says valve adjust every 2000 hours. I figure that's 12k miles. Does that sound right?

I was able to find the toolkit mentioned on google. Looking at photos of it I don't see the shim form setting the fuel rack in it. Can you confirm it is everything that is needed?

yeah agreed. I need to find the root cause.

Possible good long term solutions. 1. bigger bolt so less slop 2. use a nord lock washer to avoid vibrating the fastener appart 3. use a castle nut or safety wire 4. modify/replace L bracket with 2 ears or a stop so it rests under compression 5. figure out why the engine is shaking so much and...

On mine it's the generator ear then a L bracket. Bolt goes straight through to a lock nut. I'll get a photo next time.

So did another 100 mile trip in the truck and lost the same bolt. M8 1.25 x 40. I'm had a spare and put it in when I got home. I'm going to go measure the hole because I think the bolt is actually not big enough (slop in the hole). Has anyone else find a bigger bolt that fits?

To recap. I can upload from tapatalk just fine and I guess after upload I could edit by importing from URL that tapatalk posts the photo to. Is there any way to just directly upload from my laptop? I found the button but the confirm after picking photo never appears.

So it looks like someone used that valve as a step. I bent it back. Next day tire had more air but still low. Chances are good it's a leaky valve.

I can't upload from desktop unless the image is at a URL already. I could setup photobucket or something. Is there any way to direct upload? Sent from my SAMSUNG-SM-G930A using Tapatalk