200 tdi

Next will be pull the oil pump apart and look in there for signs of metal. I have a new pump to install. I’m going to rotate it back and hose down the crank and whatnot with kerosene to flush things out. Then check the bearings with plastagage. New bearings on the way.

The round pieces are the top caps that protect the end of the valves and spread the load on the rockers.

I'd pull the valve cover. Those lash caps should be in place, not sitting in your sump. If you replace any, order them from Turner. Genuine and aftermarket are junk.

I had the valve cover off and looked things over, it looked OK but I guess I’m gonna pull that back off and look closer. Thanks for the info.

Does RN carry properly hardened lash caps?

He said the have genuine LR ones, the others fit like crap. So, fingers crossed.

RN has great customer service, but last time I looked into this, even Genuine were not properly hardened. The only source for properly hardened caps was specific aftermarket manufacturers. Turner did the research and supplies caps from one such manufacturer. The best domestically available ones I've found are Manley 42125-8.

Why not a 300tdi?

I kept reading the 200 was an easier drop in replacement. I did order the big install kit from Steve Parker for this Disco 200 into a ninety. No going back now, I just wished I would have started sooner. I’m now NOT going to pull the 12j until this engine has had a test run out of the truck and I know it’s ok.
Now I’m nervous about the lash caps… and I have to look at the under side of that rocker arm to make sure it’s not jacked. Who knows if this was run long with the broken lash cap.

I’ll look up the Manley part #, thanks for that. On the plus side, the caps I pulled to check the bearing, the crank journals looked great and no evidence of a spun bearing. Only 30 ft. lbs on the con rod nuts? Seems light but that’s what is in the manual.

Is this the right size?

Wear Caps, Valve Stem, .313 in. Stem Diameter, .080 in. Thick, Standard Type, Set of 8

Hell that’s only 2 hours from me, I’ll drive out in the morning and pick them up!

Zebratruck said:

Is this the right size?

Wear Caps, Valve Stem, .313 in. Stem Diameter, .080 in. Thick, Standard Type, Set of 8

https://www.summitracing.com/parts/MAN-42125-8

Click to expand...

That’s correct.

Zebratruck said:

Only 30 ft. lbs on the con rod nuts?

Click to expand...

Where did you see that? My 200Tdi manual says 56-62Nm, and my 300Tdi manual says 59Nm.

That’s probably for the older engines. I’d get the 200Tdi specific overhaul manual and use the figures there.

I’m almost to Summit racing for these lash caps and I spy the lone review of these Manley ones…

“All of them dished out and grooved like they were soft. “

I’ll buy them but I think I’ll also get the ones from RN just to have on hand. Only $40.