1970 55hp chrysler can't get the gear case to come apart from mid section

[toddthax]

I am trying to drop gear case I dropped whole lower unit removed intermediate shifting rod removed nutsfrom long bolt in front pulled shaft seal and bearing housing and loosened the nut inside the gearcase and removed shifterrod pivot but can't get the two to seperate am I missing something or is the long bolt probably just corroded

 

[fucawi]

Re: 1970 55hp chrysler can't get the gear case to come apart from mid section

just been and checked in the workshop ,,,only 4 bolts holding the lower unit on and the vertical shift rod .( disconnect behind the lower unit covers ) ...why did you remove all the shaft seals and bearings ? Taking out the shift piviot pin is fatal as it wont always go back easily....once you have cracked the joint and got it to move down 1/16 you know its free and just a good wrestle if its not been off for a long time ...

 

[toddthax]

Re: 1970 55hp chrysler can't get the gear case to come apart from mid section

I didn't remove any seals just pulled the plate behind the prop to get to the nut inside that holds both sections together we are trying to get the clutchdog out to check it it won't go into forward gear even when I adjusted cables linkage and checked the control box it will shift to forward and reverse by hand and with the controler nor running but running it won't go into forward the clutch dog won't grab the gear

 

[fucawi]

Re: 1970 55hp chrysler can't get the gear case to come apart from mid section

on your original question the 4 bolts are about 4 inches above the anti ventilation plate

 

[Frank Acampora]

Re: 1970 55hp chrysler can't get the gear case to come apart from mid section

The long stud is corroded. You will need to heat the aluminum and hammer it out. Keep a nut on the end until it starts to move or you will ****-up the threads.

All in all, really a crappy design for something that goes in the water. It is supposed to be sealed by the gasket on the gearcase torpedo and the washer under the nut on top BUT---water always manages to work its way in..

Before you assemble it again, ream out the hole in the casting and slather the stud with anti-seize.

 

[toddthax]

Re: 1970 55hp chrysler can't get the gear case to come apart from mid section

Thanks frank I just read your post but that is exactly what we had to do it wasn't a quick job like it should have been your right it is a crappy design but was worth it we got the clutch dog fixed and it shifts great the old girl still has a lot of fun in her thanks again