View Full Version : Engine Rebuild Time

12-19-2011, 08:39 PM
Pulled the engine out of the boat today. Was able to get it out no problem. Will have the pictures up tomorrow, left the camera in my parents garage.

Started out by removing all the cushions in the back of the boat and the fiber glass section over the transmission/ gas tank. Was able to pull the engine out of the boat no problem with the hoist I had borrowed.

Engine is now at the engine shop, and just in time. They are getting all the motors in from the end of racing season, if we hadn't have already had the heads done there he would have told us to come back in a few months.

Time to go have a beer and relax.

12-20-2011, 05:37 PM
Picture time

Removed floor to move gas tank forward. Four attachment points

Once tank was forward I had some access to the transmission.



12-20-2011, 05:44 PM
We used a harmonic balancer puller to push the prop shaft free. Had to get the shortest 3/4" fine thread bolt from the local supply shop along with the bolts seen to push it free.

We had a hard time getting the two bolts off it was hard to get a grab on the nuts. We used a crows foot on a 3/8" breaker bar and a socket on the bolt head. Took a while for that one.


To remove the engine we removed all of the mounting bolts from each plate after chaining the engine to the lift. We also removed the computer after try number 1.

We had to grab the chain a bit further forward due to the weight of the tranny.


12-20-2011, 05:46 PM
And out she comes.



We used a napa lift part 520-6001, had room to spare between the trailer being dropped a bit more and lifting distance on the ram.

Out of the boat


12-20-2011, 05:47 PM
Transmission off the engine.



And now the engine is at the shop.

12-20-2011, 05:48 PM
You got that done quickly. Why are you rebuilding it?

12-20-2011, 05:55 PM
You got that done quickly. Why are you rebuilding it?

Part of piston #7 has gone missing.


12-20-2011, 05:58 PM
Um, yah. That would do it.

12-20-2011, 06:16 PM

That is a rather intimidating project.

Nice work so far.

12-20-2011, 07:15 PM
Looks like a great time to start cleaning and detailing the bilge. :-)

12-20-2011, 07:37 PM
Time to detail the entire interior and swap out the packing with the new seal

12-20-2011, 09:22 PM
Boy does this post bring back memories(or nightmares!)...:) :)
Looks good so far.
My advice would be to change out your Trans Damper plate while you have easy acces to it.

What are you having done to the engine?Bored over? bigger pistons?

12-20-2011, 09:52 PM
Hopefully just new pistons, engine guy said the walls didn't look bad but we will see. They were tearing it apart today. What damper plate did you put on?

12-20-2011, 09:58 PM
That would be great if the walls are good.
Mine were shot.Bored over .02 bigger piston...bla,bla.

Here's the damper plate I put in.

12-20-2011, 10:00 PM
How many hrs on your engine?

12-20-2011, 10:05 PM
Errrr only 170 or so

12-21-2011, 04:05 PM
Got a call from the engine guy, can go with stock pistons but need to bore the cylinders or go with forged and they just need to be honed. Thinking about going with the forged ones.

01-21-2012, 11:57 AM
Any updates?

01-21-2012, 12:25 PM
Any updates?

Yeah...too_tall this does bring back memories...only weeks (okay a bunch) before we can go out!!! :D:D:D:D

01-21-2012, 12:40 PM
Engine is still at the shop, should have it back end of Feb early March, he is extremely busy with race engines right now. Has to be bored out, currently ordering the OJ shaft seal to replace the original since it is relatively easy to swap out at this point.

We are thinking of mounting the gas tank the few inches further forward in the boat so we can remove the propshaft again, if ever needed.

01-21-2012, 12:42 PM
Definitely do it. That move alone wil guarantee at least 1500+ hrs!

01-22-2012, 05:24 PM
Yeah.....only weeks (okay a bunch) before we can go out!!! :D:D:D:D

Can't wait

01-22-2012, 07:01 PM
Good stuff. Sorry to hear about the whole deal though.

01-30-2012, 06:00 PM
Got the call today that the engine is ready. Pick it up one day this week.

02-08-2012, 07:52 PM
Well here is the piston that was the worst out of all. Shop says it was detonation.


02-25-2012, 10:22 PM
Well I was going to put the engine back in today but just as we were getting started I started putting in the banjo bolt for the oil drain and it sheared off while using my fingers. After finding out the local mastercraft and malibu dealers do not stock any parts and driving to every hardware supply store in the area we gave up on finding the bolt. Thanks to Table Rocker I was able to order just the bolt and not the entire kit. So hopefully it will be going back in next weekend.

03-24-2012, 02:01 PM
Back up and running video to come later

03-24-2012, 06:10 PM
Back up and running video to come later

SWEET! Nice that you didn't lose any water time.
Where are you running it this year?

03-24-2012, 06:38 PM
looking forward to it.

03-24-2012, 10:52 PM
Here is a video from when we were adjusting the timing.

http://s164.photobucket.com/albums/u9/dmayer84/Engine%20Rebuild/?action=view&current=f11770b9.mp4http://i164.photobucket.com/albums/u9/dmayer84/Engine%20Rebuild/th_f11770b9.jpg (http://s164.photobucket.com/albums/u9/dmayer84/Engine%20Rebuild/?action=view&current=f11770b9.mp4)

03-24-2012, 11:00 PM
Sweet.im glad your up and running.