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Engine Discussion of preventative/corrective maintenance and other technical issues regarding your coach's engine.

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  #1  
Old 11-14-2011
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Mike Hohnstein Mike Hohnstein is offline
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Default inside look

Posting pics of the toter engine innards. #7 lost a piece of wrist pin bushing, can see missing piece bottom of pin bore. #8 as removed, #7 after clean up. Note wear on rod insert, that's why Cat says new bearings @ 100k in truck service, that's about where this engine is.
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  #2  
Old 11-14-2011
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What prompted you to tear down engine
was there a reason ??
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  #3  
Old 11-14-2011
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Mike, we used to have problems with #1 piston cracking and ruining the bore on fire trucks w/3208. Had the fire dept buy a Sunnen hone I used to power with a huge air drill. Was easier to do in chassis than taking it out and sending to the engine shop at the municipal garage. Cab over Ford. Was this motor starting to make a little noise?

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  #4  
Old 11-14-2011
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found the pin bushing piece on the magnet when changing oil. happy I didn't window the block, was getting ready to head to ID. Took the bus instead, PS pully fell off on the way out and retarder bearing went out on the way back. However it ran good to Rats and back but have to replace O-ring on injection pump, engine oil in the valley. No rest for the wicked.
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  #5  
Old 11-16-2011
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Quote:
Originally Posted by Mike Hohnstein View Post
found the pin bushing piece on the magnet when changing oil. happy I didn't window the block, was getting ready to head to ID. Took the bus instead, PS pully fell off on the way out and retarder bearing went out on the way back. However it ran good to Rats and back but have to replace O-ring on injection pump, engine oil in the valley. No rest for the wicked.
Cheesh, You have a pretty big list going, Mike H.

Good luck and thanks for the PICs.
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  #6  
Old 12-03-2011
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Saturday @ the shop, just me and the kitty kat. Ring expander is needed to install the rings, old next to new shows what bearings can look like @ 100k miles. Setting the bore gage off the mic set to crank dia. Read out in rod bore w/new bearings torqued to spec show .005, toward the high allowable spec. Rod and piston assys. ready to go back in their respective holes. Next step is rolling in the main bearings, that will be a little more like work.
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  #7  
Old 12-03-2011
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very nice Mike.
Its great to have a clean work station!
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  #8  
Old 12-17-2011
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more images:Main bearings from the toter, stash of throw aways that need to be managed. unit on right is original 225hp from my FC, got to determine if it's rebuildable, not optimistic. Center one was in the toter, a 250 hp arrangement, rings are gone but a good builder, left unit is very low hour Cat reman, close ups of injector pumps focus on aneroid I don't use anymore.
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  #9  
Old 12-17-2011
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more more: Note the valve cover tag, engine was in a day cab semi, intended use was in town delivery and short hauls. The other tags state arrangement and component sizes, this example has standard crank and pistons, I'm happy but as last image show, I'm fated with engine oil in the valley, leaks from around the injector pump and I never ran this engine in my vehicles yet. Toter, FC and this donor engine leaks in the valley. However, the tags are what you want to see if a seller claims a vehicle has a Cat reman.
Plan is to set the reman unit up with my fresh 300hp pump, 375hp marine nozzels and the big Schwitzer turbo, connect that to the other MD I got with retarder and see if I can cobble that into the FC next winter, if my back don't go out again.
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  #10  
Old 12-17-2011
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Thanks for the Pictures Mike. Sure will make me keep an eye on the oil gage.
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