Timing chain dauntless V6

I plan on changing the timing chain on my '67 CJ. The manual I have is pretty vague. Does any know of a thread, site, or post that may have something covering this subject? Any information would be very helpful. Thanks in advance.

 

I know some, I just did mine. I can scan the timing chain section out of my service manual for you and post them up. Its helpful in locating some of the bolts, especially if they are covered in grease like mine were. It is fairly straight forward assuming you don't break any bolts.

I hope that the bolts come out for you... I ended up breaking four and had to using a small propane torch to get them out.

https://www.google.com/#q=site:earlycj5.net+timing+chain



This will help with location of bolts.




I left my oil pump on the timing cover when I took it off, once you get everything disconnected and unbolted the cover comes off rather easy. If it doesn't your hung up on something.

the chain install is a matter or aligning the engine to top dead center, and then aligning marks and installing chain and tensioners.




if you need more clarity for this let me know, I only got main parts of that section. There is a link of all the different timing chain post that can help you.

 

Thanks for the information. What about the distributor? Does it require removal? Are any special tools needed?

 

Other than the timing chain cover is there any other seals I need to change?

 

You will need to pull the distributor. Also belts, pulleys, dampener (sp?), hoses, fuel pump. You can leave oil and water pump in place. My rebuild thread provides a lot of pictures to help. http://www.earlycj5.net/forums/showthread.php?101530-225-engine-assembly

 

Thanks grannyscj I will deffinatly take a look at your thread. Right now I basically have everything off that you mentioned I plan on leaving the oil pump on when removing the timing chain cover.

 

Make sure to run your distributor around to TDC on the compression stroke(pull #1 plug and feel the pressure of the stroke by placing thumb over spark plug hole and timing mark at 0) before you pull it.

 

Ok Daryl, so I should know the difference between the compression stroke and the exhaust stroke?

 

On the compression stroke it will push air past your finger/thumb. Exhaust stroke will not.

 

If it's already been running and is timed, just take the rotor close to the #1 terminal and then set the timing mark to zero. If everything is apart, then you will have to do as described and find TDC, both valves closed and piston at top of travel. TDC and match marks lined up on the gears is what you're after.

 

Thanks guys for all of your advice. I was finally able to get the timing cover off, had a hard time, and low and behold, timing chain, both gears and both dampers look new. Hardly any slack in the chain, it does move but not much. The odmeter stopped at 42,000 miles and the PO didn't know exactly how many miles was on it when he bought the jeep. So since the engine was already out, I thought I would change the timing chain but looks like someone already did. I do have one question about the rope packing or seal, should I replace it if I can find one or is it ok to reuse it?

 

I'd suggest replacing it and the rear main seal with a neoprene seal while it's out. Available at NAPA.


Sent from my iPhone

 

The original timing gear has nylon gear teeth, for quiet operation. They were known for shedding teeth at comparatively moderate mileages. After 50 years, these are ready to fall apart. A replacement gear should be all steel.