135hp Merc Lower Unit plus other questions

Seattle Joe

Recruit
Joined
Aug 6, 2002
Messages
2
I was told my motors year to be 70' or 71'<br />1350/135hp/OB/Mercury/with ThunderBolt Egnition<br />with a red Cowl cover<br />Ive never found the serial# or ID Badge<br />or a positive year im looking for that info as well as ive got a cracked lower unit, and looking for prices. bare case vs. complete used. Any gasket Sets or rebuild kit.? (bearings/seals)?<br />Also do i need to find same year/horse power/gear ratio Lower unit case? or are they swapable with others?.. If So,<br />Do you know witch ones or any info on that please. Also prices for Shop manual and parts list.<br />(im sorry if you need to know the<br />shaft length, ive got pics on requests ill send.<br />it looks to be about 14"-16" from Prop Center -up to where it bolts to the rest of the tail..(correct?) My buddie says have it welded.. but someone told me, "bad place for the crack" starts at the prop output hole and travels horizonaly about 3"-4" then turns down for about<br />2"-3" Is it also true that, All the prop and output shaft is held in by a Inner Nut that has the threads on the outside, And threads into the case??? If so with the crack where it is, It could be possable to shift into Reverse and "Shooot" the prop, shaft,and gears right out the back!?? That dont sound right though a steel nut threading into Pop or cast Aluminumn???
 

jdmensing

Recruit
Joined
Aug 13, 2002
Messages
1
Re: 135hp Merc Lower Unit plus other questions

You sound like the brilliantly helpful guy who let someone's boat sink while you laughed?!? <br /><br />Oh - it is you SJ... just read your great post on the Stupid Human Tricks section.<br /><br />You have too many problems to solve on a boater's BBS.<br /><br />Better off parking it in the tall grass and having another toke moron.
 

sidewinder16

Cadet
Joined
Jul 22, 2001
Messages
10
Re: 135hp Merc Lower Unit plus other questions

90hp-140hp 1969-1988 will fit that unit they are fairly common on ebay and not that complex.
 

wilde1j

Vice Admiral
Joined
Apr 15, 2002
Messages
5,964
Re: 135hp Merc Lower Unit plus other questions

Try this website for rebuilt (w/ warranty!) and manual.
 
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