91 glastron 4.3 mercruiser engine installation trouble

markhaider

Recruit
Joined
Jun 13, 2006
Messages
4
I have a 91 Glastron 4.3 mercruiser engine I pulled out and overhauled. The motor mount height was untouched. Is it possible to reinstall the engine without pulling the sterndrive out..... I tried some force and turning the crank and it still has a 1 1/4" to go. (Is there any shortcuts or tricks to get the engine couplier and the drive shaft to go together.) Do I have to pull the stern drive ?
 

bomar76

Lieutenant Commander
Joined
Jun 27, 2002
Messages
1,963
Re: 91 glastron 4.3 mercruiser engine installation trouble

I have a 91 Glastron 4.3 mercruiser engine I pulled out and overhauled. The motor mount height was untouched. Is it possible to reinstall the engine without pulling the sterndrive out.....

No

Is there any shortcuts or tricks to get the engine couplier and the drive shaft to go together


No

Do I have to pull the stern drive ?

Yes
 

Chris1956

Supreme Mariner
Joined
Mar 25, 2004
Messages
28,113
Re: 91 glastron 4.3 mercruiser engine installation trouble

Mark, How were you able to get the motor out of the boat, without pulling the outdrive? Does it slide that far forward? I needed to lift my 4.3LX straight up to clear the front motor mount studs. It has got to be easier to pull the drive then try to turn the motor to synch with the outdrive, while pushing it back.
 

searay3

Senior Chief Petty Officer
Joined
Apr 7, 2005
Messages
655
Re: 91 glastron 4.3 mercruiser engine installation trouble

You will have to pull the drive anyway. Once installed, the motor/gimble bearing/outdrive has to be centered using the alignment tool, and motor mounts adjusted accordingly.. This is something you just can't skip any steps.
 

markhaider

Recruit
Joined
Jun 13, 2006
Messages
4
Re: 91 glastron 4.3 mercruiser engine installation trouble

With a 1991 Glaston you are able to remove the dog house walls and easily move the engine forward a foot , before the oil pan starts to touch.
 

Bt Doctur

Supreme Mariner
Joined
Aug 29, 2004
Messages
19,349
Re: 91 glastron 4.3 mercruiser engine installation trouble

save yourself the trouble of pulling the motor twice to replace the coupler.
.remove the drive, install the motor back on the mounts,check/correct any alignment issues, install drive .
 
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