Bought another 200

[Falcon61wagon]

Yesterday I bought another 200 dual pattern block. I’ve got one laying around with a D8 250 heading sitting on it but it needs a full rebuild. I’m hoping to get the latest one cleaned up and running while I tinker with the other.

The motor turns over clean and compression sounds and feels are there.
Pulling the oil pan to inspect I found quite a bit of debris in the timing chain housing. I flipped the motor back over and blew it out with compressed air, along with the crank case housing. I notice the rubber on the harmonic balancer is dry rot so that’s getting replaced. The cylinder walls don’t look scarred - bonus.
I’m considering replacing the oil pump for good measure but leaving the rest.
I’ll check the pugs maybe but a newer dizzy on with a carb swap.
Does anyone have thoughts on inspection, or cleaning the internals before buttoning it back up?

 

[bmbm40]

Timing chain for wear?

 

[Falcon61wagon]

Timing chain for wear?

When I get the cover off how much slack is too much?

 

[B RON CO]

Hi, you have the early LOM distributor. How about some pictures of the cylinder, and the other side of the block? Are the pistons stamped oversize? I would check a couple of bearings for wear. I would use my caliper and measure the bore. Have you ID the head? Good luck

 

[bmbm40]

When I get the cover off how much slack is too much?

There is probably published specs for that and someone on here will know but also it may just be obvious. When I replaced the 170 with a 200 in my Bronco I just replaced because it was a used wrecking yard motor.