Rebuild my 1981 - 46 Post Detroit 6-71 TI's

Description of my engine rebuild, just for who's interested!

I bought my Post about 2,5 years ago, extremely cheap, but with a lot of TLC. I invested about 60-70k and replaced and/or updated almost everything... too much to mention!

Finally the last part where the engines, they worked great till I decided to rebuild them, nothing was broken, but they started after 3-4 turns (low compression) and smoked like h.ll at startup, I found that very embarrassing at the Marina and at the boaters 'meet and great' place on Sunday's.

So, nothing was broken, but I decided to replace the below parts on both Detroit 6-71 TI engines

- SB Cylinder head (new*, not rebuild)
- Port Cylinder head rebuild (former owner stated he bought it new 3-4 years ago)
- All injectors rebuild
- All new Cylinder liners and pistons, incl. bearings etc.
- New blowers
- New turbo's incl. all hoses
- New oil pumps
- New oil pans
- All new fresh and raw water pumps
- New fuel pumps
- New starters
- Rebuild both governors
- Cleaned out all 4 engine breathers (TIP)
- Installed new complete Walker Airsep systems

Note: new*=not rebuild

And of course a lot of small parts, like zinc anodes, hoses, clamps, thermostats, 12v cables etc, etc, and we also cleaned fresh and raw water circuits

Would I do something different... yes, I would paint the engine before all new parts where installed, but a lack of time forced me to do that afterwards... and that's a hard job to do it nicely!!

My local father/son mechanics have 35/8 years experience, they were always on time, within a Caribbean 1/2 hour, and that's unique!!!

Things still to do: find new water temp sensors matching my instruments (help!) I have a digital (Celsius) spare system mounted already, but would like to have that matched with my original (Fahrenheit) meters.

Cost: Approximately $18-20k all-in... I find that amazing!!!

They don't smoke (white) for more then 5 seconds... same like your breath at a cold winter day...;-))

They where OK for me too for a long time, but after I finished all the rest, this was my last major investment... think I will never sell my Post (only if I win the lottery.. LOL)

Forgot to mention, I sold all used (but not broken) parts to local fishermen for about $3K

RPM Diesel in Ft Lauderdale sells a lot of new components, and I found some old stock on eBay too!

In-frame!

Yep, correct! Cost me $ 3700,- from a Detroit dealer!

FYI, my mechanic warned me for Reliabuilt... too old stock, with too many problems in their experience...

All work was done on Curacao, labor is cheaper over here, plus I travel on a regular basis to the US, and take a lot of parts for the mechanics with me, so we have a win-win situation and they're a little more flexible with me for sure!

Still same experience with Reliabilt injectors, due to mistake of rebuilder, they gave me Reliabilts... and 4 out of 12 where bad!! Finally I got my originals rebuild, and all OK!

Sorry RT46, forgot your question, unfortunately the yards hydraulic trailer has no weight scale (they say)...
And no numbers yet, after the rebuild I had to dock for bottom paint etc....
Props still the same, 3 blade 24x27