We bought a CAT D4D, will it ever run again?

My brother and I bought a CAT D4D. This is the first video in the series of us bringing it back to life.

[@justicelut]

You guys need a solid block of hardwood about the same diameter as the piston. Place it end on on the piston and hit the top of the wood with a sledgehammer. Works every time!

[@chipmonkey7100]

Looking forward to more! Thank you for the extra explanation. Great video.

[@oldamericaniron5767]

Good progress. I’ve done one D4 with a tight engine years ago and have another early one waiting. I cleaned the liners up with sunken hone, new rings, reused head gasket. I used conventional o-rings one liners. They were too narrow for groove so I filled void with silicon and let cure before a fresh film of silicone on o-ring just before installing. The liners will do just fine with some fine pitting. I’m kind of cheap or frugal, what ever you want to call it. All I bought were the piston rings and liner o- rings. Everything worked out and it runs good. I’m going to subscribe and keep watching.

[@VetvsWorld]

Cool man, I’ll come along for the ride.

[@thomasr.miller5553]

Two weeks ago ? SNOW IN JULY ??? Canada ? great video. thanks

[@morgansword]

Wish I was there with you guys. Did it for a living say forty years ago. Seventy three now, started for dad in the fifties.... born with a wrench in hand was the standing joke.

[@Russ4844]

Pour 50/50 mix acetone and automatic transmission oil into cylinders and let sit for several days to see if will brake engine free

[@hiscifi2986]

It still might have a stuck Cam Follower, as it seemed to stop the rotation fairly quickly. I missed the bit where you needed to park it on a hill top...!

[@michelgrenier1878]

This one will need a lot of work ! When using the log and sledge hammer on a piston , Be careful that the engine doesn't start on you ! Ha Ha

[@robertwagner8596]

good show fellers,new scriber from NC....I saw a video once where the used comp.air to free up a cylinder,i dont think it woulda worked in your case though,anyway,good luck,i be watching for the next one....stay safe

[@TestECull]

40:04

[@Diglo1]

It is surprising how well beer can save the day if the clearance is too loose.

[@wilmamcdermott3065]

Use ATF MIXED with acitone

[@williamhouk6880]

Try a torpedo heater to heat that engine up to a summer temperature to help the the oil to creap where it needs to go.

[@jacobbuckley8232]

The rings dont always rust sometimes just rust on the cylinder walls

[@hiramdjonesjr]

Would be worth getting the valves closed pump a bunch of greas in to pop it lose then flush it out with kerosene

[@Videowatcher2.0]

Need to warm it up,

[@IgorBastos20]

E só muito trabalho a migo 👏

[@modestoluisestelasanchez1892]

Desdepekueñonolecanviaronel filtroilochupo

[@garyallport18]

Get some pakistani guys to work on these old machines..they perform miracles😅