'57 Chris Craft Utility engine rebuild need manual and specs

[TimelessChris]

Alright, here's the deal, I'm working on a '57 Chris Craft Utility, and my engine is guzzling oil like it's happy hour,except the compression checks out fine, so I'm scratching my head. Plan is to give her some TLC, maybe a full refresh if I can swing it. Here's where I'm stuck though, I need the nitty-gritty,torque specs, bearing clearances, all those little details that separate a good rebuild from a backyard hack job. So, anyone got a line on a proper manual or some deep-dive rebuild info for this beast? Old PDFs, photocopies, heck, even napkin sketches,I'll take whatever you've got

 

[Jaco_b]

I once rebuilt a '56 Chris Craft engine that was burning oil too, despite solid compression. Tracking down the right manual saved me, I found a dusty original PDF in a boating forum, the precision torque specs and bearing clearances made all the difference, so yeah it is worth hunting for those details before diving in

 

[VintageCraft]

If your '57 Chris Craft engine is burning oil but has good commpression, it's a good idea to rebuild it. Pick up the Hercules K Series manual for the torque specs and bearing clearances since that's the engine you'd typicaly find in that model. Check out Classic Boat Connection or marine-diesel-engine-manuals.com for the manuals, and don't forget the Chris-Craft forums for some handy advice.

 

[ChrisCraftCaptain]

Good advice, rebuilding sounds like the way to go with oil burning but solid compression. Did the OP find any particular threads on the Chris-Craft forums especially helpful?

 

[mahoganyenginesw4p]

I hit a brick wall with that '58 model, compression seemed good, but it was still guzzling oil like there was no tomorrow. After digging around, I discovered the valve guides were worn out. Thankfully, I got the specs I needed from this old boatyard guy who had an ancient photocopy of his manual from the '70s. Seriously, it's worth looking up those little details,trust me, your future self will be grateful