Hmmm...If it was mine I'd go completely through it and check everything, with the age on these old engines seals get brittle and O-rings leak around liners,etc,etc,etc.
If that material is from the main or rod bearings, that calls suspicion on the journal condition. With not too much effort, you can drop the pan and inspect the journals to decide whether to in-frame it or put the engine on a stand to make life a lot easier since you'll want to give the engine a pretty decent cleaning anyway. Also bear in mind that it's possible the source of the particles could be something else failing (not crank-related) like the gears on the front of the engine or maybe the lifters
Hi All,
Dont forget in a D2 the pistons come out the bottom so an in frame rebuild is almost impossible due to the crank in the way.
I would put some new oil and filter and run it for a while keeping in mind to listen for any noises. Also a good idea is to get a long handle screwdriver and place one end on the block and the other end just behind the ear and it is amazing all the sounds you can hear in the block.
Regards
"i reject your reality and substitute my own" - adam savage. i suspect my final words maybe "well shit, that didnt work"
instead of perfection some times we just have to accept practicality
a bit of dowel or broom handle also works as a rough and ready mechanics stethoscope. as long as it stiff it will conduct sound. a proper stethoscope isnt expensive either.
neil he said it wasnt magnetic so i doubt its the timing gears as there all steel are they not? that doesnt mean theres not a bushing somewhere failing.
Thank you for the advice guys. I was not aware the pistons came out the bottom. This is about 30 years older than any other Cat I have worked on. Still trying to get my hands on a service manual for it.
a bit of dowel or broom handle also works as a rough and ready mechanics stethoscope. as long as it stiff it will conduct sound. a proper stethoscope isnt expensive either.
neil he said it wasnt magnetic so i doubt its the timing gears as there all steel are they not? that doesnt mean theres not a bushing somewhere failing.
Hi all,
You can pull the pistons out thru the bottom with the crank still in as I've done it with my D2 5U16437 as I changed no 2 and no 3 pistons while the engine was still in the machine but to remove no 3 piston I had to remove the oil pump and they go back in easy enough without using a ring compressor.
Cheers Wayne 👍
a bit of dowel or broom handle also works as a rough and ready mechanics stethoscope. as long as it stiff it will conduct sound. a proper stethoscope isnt expensive either.
neil he said it wasnt magnetic so i doubt its the timing gears as there all steel are they not? that doesnt mean theres not a bushing somewhere failing.
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