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 1 
 on: February 17, 2019, 02:20:22 PM 
Started by antman - Last post by antman
sunday morning .bays flat .slipped it in. idle , Grin out trim it in.....go ! up .up up . slowley revs increase .and we are now ....plaining   Grin
check tacho , 2800 2900 3000 3100..wot played around with trim and had me and mate jumping around up front trying to increse rpm by weight distribution
but moving and plaining    But it was fun ! finally after 1 year i got it to move along
aadd some chop and swell and its probably back to useless again! but is is a positive .(Frankenstien phsyco engine ...gives you a little bit of improvement just to keep you hooked )all it had to do was rev to over 4000 rpm under load !and i would have spent  money  replacing any part with any new parts i could find
on the web .slowley week by week .
Im thinking now ,, becuase i fixed it this far ..of finding another mechanic  drop it off and say nothing of my past history
" i was out last sunday mate and its was not reving over 3000 rpm ..strange hey " and leave it with him  Cheesy Cheesy Cheesy Cheesy Cheesy Cheesy   Roll Eyes

 2 
 on: February 16, 2019, 12:56:11 PM 
Started by austral - Last post by MERCMAN
No!
I'll have to check my junk.

MERCMAN.

 3 
 on: February 15, 2019, 07:19:55 PM 
Started by antman - Last post by antman
thanks -Austral,Mercman and thanks Mark
Water in the plugs would mean .. in the water at dock reving to 3-4000rpm   waterpump pumping hard would maybe  give me ,missing or lumpy rpm ..not getting that . it revs clean to 4800 under no load ..( i may be wrong )
in the first week-  i opened a can of worms by opening controller  , total re wire as it was all stuffed . water had got in through choke button and all the wire had perished and corroded . all redone  .tested from controller to conections inside the engine therefor testing the loom and black external plug and internal wiring loom for continuity and voltage with a multi meter  .but i will check that loom end again 
vent checked...... i recon every time i  try it ( isnt that the first sin ?)
timing mark lines up and piston top dead  center .. visited that at the time of the flywheel re install and  yep ill re check that
Marks correct.the houseboat prop would still rev ..i didnt read some pdf i found correctly. Information overload
no havent squirted fuel in under load ... and im  using good fuel and oil ..had 91octane  and tried 95 .( which is better?)
i have not tested in the water for 3 weeks. so i should try it again  before i pull it all apart
i have missed something. ive just got to find it



 4 
 on: February 15, 2019, 11:26:31 AM 
Started by austral - Last post by austral
Thanks  Mercman,  hey did those emails come through with the photos ?

 5 
 on: February 15, 2019, 10:39:49 AM 
Started by austral - Last post by MERCMAN
These days soda blasting or peanut shell blasting are preferred alternatives to sand blasting. These new ways will not damage parent metal.

See nymarine.ca for painting tips and methods. There are quite a few yankie websites/forums that offer great ideas for enthusiasts like us. See: FiberGlassics.

MERCMAN.
 

 6 
 on: February 14, 2019, 06:20:02 PM 
Started by austral - Last post by austral
Thank you David, i recon i will strip it back with paint striper because im pretty lazy with preparation and stuff like that ( i actually work like a dog in real life).
I also dont plan on removing the power head but have pulled down the lower leg to replace all seals etc.
P.S. Did i actually call it a " Merk"

 7 
 on: February 14, 2019, 02:58:05 PM 
Started by austral - Last post by Chair
Hi and welcome Darryl
I did my 64 Merc and stripped the head back to metal but not the lower section. I painted the head with two pack and it came up beautifully and lasted for years
The lower section I just rubbed back and used single pack enamel. It was never as good as the stripped section.
Preparation is always the key. I suppose sand blasting would be quicker as it took a lot of stripping
These are my thoughts but others may have better ideas. Canít remember the paint brand I used.
David

 8 
 on: February 14, 2019, 12:56:03 PM 
Started by austral - Last post by austral
Hi all, yeah im new here. Ive got a very low hrs, fresh water only '62 Merk 700. It runs like a swiss watch after carb clean out etc.
I've decided to paint the "cloud white" exterior and buff up the shiny bits , so can i paint strip the alloy cowl and leg etc or do i just rub it back or even get it blasted ? I just havent done an outboard before.
While im at it, what paint do you guys recomend ?
             Cheers, Darryl.

 9 
 on: February 13, 2019, 12:23:09 PM 
Started by antman - Last post by Mark S
I've read everything and you've gone around in one big circle. Need to start from basics again. Mercman's point about mis-matches needs to be kept in mind, it may or may not be contributing to the problem.

Have you checked number one cylinder piston top dead centre to see if it matches the TDC on the label before checking ignition timing? Timing should be checked at max advance which is 32 degrees for a 1967 model. Can be checked at any revs or static.

Don't let a clean spark plug on the bottom cylinder mislead you either, some in-line Mercury's do that.

If you had a houseboat prop on it, it would be revving its head off and getting no-where, not loading up.

Obviously you are using a good brand of fuel like BP and a quality 2 stroke oil like Mercury premium plus or Evinrude XD30.

I would think a 15 pitch prop is not too big, your gearbox should be a 2.1-1 ratio.

When under full load, have you had anyone squirt some fuel in to the carburetors to check for fuel starvation?

Can you post a photo of the spark plugs, so Mercman and I can see them.

Mark S.

 10 
 on: February 13, 2019, 09:06:51 AM 
Started by antman - Last post by MERCMAN
The loom in your most recent picture doesn't look real flash. It shouldn't look limp like that (near the support bracket).
Take the electrical tape off and look for perished/damaged insulation of the wires within the loom.
Can you borrow another control box and loom assembly from someone? (I had spare control boxes up until this time last year.) Try speaking to Guy at the Outboard Workshop - Carrum Downs. I sold most of my collection to him.


This is an obvious one... is the vent on the fuel tank open, since attending to all the other suspects?

The other thing I see in the pic.. That's not a 1967 outer. This leads me to think the position of timing mark (decal) is probably not matched to your powerhead. This needs further investigation, only if there is nothing wrong with the wiring within the loom. 

MERCMAN.
 
 

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