Teardown of the pulled engine - Shiny copper colored main and rod bearing inserts!

[WarWagon]

This is the fright train, truck is on fire, blowby engine I just pulled with 94blazer's help.

Hmmm... this (pictures) is what high copper can mean along with other high metal content in an oil sample.

A member was in need of a block so I tore mine down to see if it was any good. So far the block looked ok.

I was surprised that the block was a 929 casting in a 1993. The 0.5 MM stamped on the pistons explained it quick.

The nasty leak on the front seal was from the seal being "worn out". This wear no doubt from excessive bearing clearances.

The shells are in no specific order.

This looks to be a past life construction truck with a company radio antenna and wire left over when I got it. Read high idle time and dirt roads. Dirt just caked on everything like the top of the trans and fuel tank.

Engine ran good - just lots of blowby. No doubt it would have spun a bearing in the middle of nowhere on me sometime rather soon. :skep: The cam plug in the block was also looking like it was coming out - not seated flush anymore.

Dirt on skirt is just that: shop in that corner kicks up kitty litter, etc. from airflow.

 

[DieselSlug]

When i took the #8 piston out of mine there was hardly any wear. i got lucky when i got it for 600.

 

[btfarm]

Looks like LOTS (!) of idling with virtually no oil changes even though it was full of grit. Don't very often see bearings that bad... at least not from a motor that was still running.

 

[WarWagon]

Not only was it running I was towing 24' and 28' cargo trailers with a full (and then some) load.

 

[buddy]

These 6.5s take a beating, they just show little to no sign that there about to explode

 

[figment]

These 6.5s take a beating, they just show little to no sign that there about to explode

That's not what I wanted to read, I've had a lot of chevy's and they've always given me some warning, like a death rattle, or develop a miss long before they finally give up.

 

[WarWagon]

Oil samples, not so good, extreme blowby, major oil leak, knock like a bad injector from time to time...
But nothing that would have made me think I would see the copper on the bearings.

She was running that good. However one look at the truck and 'beating' doesn't do it justice. Looks like it has been through hell and pulled a trailer is more like it... Least people will think twice about stealing it.

 

[Dave Barbieri]

However one look at the truck and 'beating' doesn't do it justice. Looks like it has been through hell and pulled a trailer is more like it.

Yup. The reputation of these motors for being 'fragile' is highly over-rated! :agreed: :agreed:

True, they're not a 'million mile motor', but mine does everything I want of it, and gives me decent fuel economy and cheap repair parts in the bargain. Not a bad plan for the long term. :thumbsup: