1969 Merc 350 spark issue solved but !!!

[lifeandliberty]

hey CHINEWALKER & RATT1966 thanks for all the help. turned out the spark plug wires were giving me all the trouble. just clipped a little of each end and she fired away. MAN what a fun motor. She really moves through the water. Anyway while I was out, the water pump went out and I've got a lower unit seal problem. I'm tring to remove the lower unit and having problems that repair manual is not solving. I've removed all the bolts and nuts that I believe are holding the lower unit on. here are some pics that might help understand what I've done. Thanks for the help!

 

[lifeandliberty]

Re: 1969 Merc 350 spark issue solved but !!!

here is a better link to those pic's My Merc 350 pics

 

[jim phillips]

Re: 1969 Merc 350 spark issue solved but !!!

lightly tap it with a dead blow hamer or a block of wood it has worked for me. Just be careful and take your time

 

[ratt1966]

Re: 1969 Merc 350 spark issue solved but !!!

glad to hear the you got it going. my lower came off easy take a dead blow hammer and try taping it off be very careful i don't think you will be able to find a lower unit houseing if you bust it. let us know how things go

 

[Chinewalker]

Re: 1969 Merc 350 spark issue solved but !!!

Hey, we're the '69 350 owner's support group! <br /><br />The photos seem to show you've gotten everything disconnected. It's likely that the driveshaft is stuck in the crankshaft - not uncommon. It's very important to make sure the driveshaft splines are greased before reassembling the lower to the exhaust housing. It's an often overlooked step when a novice tinkerer replaces a waterpump, etc.<br /><br />You might try some wooden wedges to start prying the unit downwards. Hopefully the driveshaft isn't too badly stuck and just needs some gentle persuasion. The water tube and shift shaft can also stick a bit...<br /><br />- Scott

 

[Walker]

Re: 1969 Merc 350 spark issue solved but !!!

Use the 2 forward nuts to help force the L/U down. Just keep backing them off and they should push the L/U down.