How do I get my crankshaft out?

[zmoz]

I've got the back half of the crankcase off of my inline 6. How exactly do I get the crankshaft/pistons out?

[zmoz]

Ok...I got the crankshaft loose, but the pistons still won't come out. Any idea why?

[ILLandowner]

I wanted to see them next to each other. When you forgot the oil, did your motor seize? if so, they could still be stuck??:confused:

[zmoz]

Yep...they do look good together. :) It seized up twice actually...but it freed up after that, still turns over nice and easy.

[mercmack]

WITH THE END CAPS OFF, USE A BIG SCREWDRIVER AND PRY UP ON THE CRANK, MY WANT TO PUT A FLOADED RAG UNDER THE SCREWDRIVER TO PROTECT THE CRANK. IT'LL COME...

[mercmack]

ITS SUPPOST TO BE THE BLOCK...:D :D :D

[zmoz]

I've been beating on it with a hammer and a peice of wood for a while now...nothing.

[zmoz]

Ok...I think I might need stitches, but it's out. :D


Thanks guys!

[CrayzKirk]

Hi,

I would invest in a manual. The description of using a screwdriver with rags to protect the block and crank is clearly stated. The fact that it is tight in the block is good; the crank hasn't been rattling around in there.

So, how does the block look? Hone, rering and a couple of pistons? Might as well do endcap seals while you are there. If you want to get ambitious, crank pin and piston pin needles along with new rod bolts/nuts. Rickracer can set you up with everything you need.

First problem is to find a machine shop that deals in the closed head blocks and two strokes...

Kirk S.

[baddjonny]

Did the reed blocks have extra locking screws to keep from spinning I'm talking about the one's with the little metal locking tab ???

jon b

[zmoz]

Originally posted by CrayzKirk
So, how does the block look? Hone, rering and a couple of pistons?


No, I think this one's done for. :( All the cylinders have some deep gouges, one is missing some chunks. :D There is still some factory honing marks in a couple cylinders though. Not bad for a 30 year old engine that went about 30,000 revolutions without oil! :cool: I'm still considering getting it completely rebuilt, I would much rather have this one in like new condition over a brand new 115hp...

[zmoz]

Originally posted by baddjonny
Did the reed blocks have extra locking screws to keep from spinning I'm talking about the one's with the little metal locking tab ???

jon b

No, they had little pins in them to keep from spinning.

[mercmack]

HAVE YOU LOOKED AT THE NEW MERC 115 OPTIMAX, ITS A SWEET ENG, HAD THE CHANCE TO RUN ONE AND PUT MERCS NEW LAPTOP ON IT AT MERC SCHOOL LAST MONTH....:) :) :)

[zmoz]

I guess you are supposed to use oil...who would have thought? :rolleyes: ;)
http://zmoz.us/piston.JPG