Replacing Impeller on Alpha 1 Gen II

[MarkSee]

Re: Replacing Impeller on Alpha 1 Gen II

I will put it down as far as I can get it. On my trailer it will not go full down but gets close.

My Maxum was that way. To get the front of the trailer down as far as possible when I wanted to change the gear oil, once the trailer jack would go no lower, I put a floor jack under the tongue, swung the trailer jack back up out of the way, then lowered the floor jack down. At that point the outdrive could go all the way down.

Mark

 

[achris]

Re: Replacing Impeller on Alpha 1 Gen II

If oil continues to leak out of the fitting after the drive has been removed, then the check ball in the fitting is worn or gummed up, change it out.

My drain/refill procedures vary from the manual... But I have seen inside many, many drives and know what makes them tick (and tock). My system works for me but my recommendations to others without extensive experience working with them is to do it 'by the book'.

The only suggestion I could offer is to do the 'lay it on the starboard side and fill with more oil AFTER following the correct procedure' trick. That should ensure no air left in the top of the drive. Once you get the drive back on the boat, push more oil up (from the bottom screw) to half fill the reservoir.... (if you drained it or it leaked out)....

Chris........

 

[waterdowg]

Re: Replacing Impeller on Alpha 1 Gen II

I got it filled. But I'm sure I have air still in there as I was not able to get it completley down. I there was only about 2 more inches it could have gone. Is this going to be an issue? I'm guessing that once I get it in the water and get the drive all the way down the air will work its way up to the reservar.
I wasn not able to lower it any more, as I don't have a floor jack that would have worked. As for laying it on it side. I already had it mounted and 1 quart of oil in.
Now how much oil should I have had to put in? The guy a the marina told me 2 1/2 quarts. I got in just under 2 quarts. I can can't believe I have that much air in the system.

 

[MarkSee]

Re: Replacing Impeller on Alpha 1 Gen II

Now how much oil should I have had to put in? The guy a the marina told me 2 1/2 quarts. I got in just under 2 quarts. I can can't believe I have that much air in the system.

Not sure why that guy said that as here is a link where you can see the capacity info (page 13-14) for a1g2 is 2 qts with a round bottle and 1.75 for the rectangle type:
http://www.ebasicpower.com/downloads/Mallory_Marine_Capacity_Charts_Guide.pdf

I think you should do as you are thinking and take it to the marina, lower it down and remove the cap and see if the level goes down slightly or not but have some handy to fill if necessary. I always carry some onboard anyway.

Mark

 

[achris]

Re: Replacing Impeller on Alpha 1 Gen II

Not sure why that guy said that as here is a link where you can see the capacity info (page 13-14) for a1g2 is 2 qts with a round bottle and 1.75 for the rectangle type:
http://www.ebasicpower.com/downloads/Mallory_Marine_Capacity_Charts_Guide.pdf

I think you should do as you are thinking and take it to the marina, lower it down and remove the cap and see if the level goes down slightly or not but have some handy to fill if necessary. I always carry some onboard anyway.

Mark

Since he's now got air trapped in the lower unit, it'll take quite a while for it to make its way up the small passage between the boxes... A few minutes in the full down position isn't going to do it....

My suggestion.... Take the drive off the boat again and put it on a bench, upright and nice and level. Let the air accumulate where it needs to be and then pump a bit more oil in through the lower /drain screw. That will push the air in the lower up through that passage and into the top box. Leave it overnight, then use my 'laying on the floor' tip..... Re-fit the drive to the boat and stop worrying about it.....

Capacity is 64 Fl oz (1.9l)

Chris........

 

[waterdowg]

Re: Replacing Impeller on Alpha 1 Gen II

My suggestion.... Take the drive off the boat again and put it on a bench, upright and nice and level. Let the air accumulate where it needs to be and then pump a bit more oil in through the lower /drain screw. That will push the air in the lower up through that passage and into the top box. Leave it overnight, then use my 'laying on the floor' tip..... Re-fit the drive to the boat and stop worrying about it..... Chris........

Are saying take the enter drive off or just the lower part? I origninally only took the lower portion off to replace the impelle not the entire outdrive. I will have to think about this. I think I will try to borrow some car ramps. and back the trailer up on those. This will allow me to lower the drive all the way. Then empty the reservar, and pump more fuild it. That should allow mw to get all the air out. I don't think I have much air but I'm sure there is some.

 

[achris]

Re: Replacing Impeller on Alpha 1 Gen II

Are saying take the enter drive off or just the lower part? I origninally only took the lower portion off to replace the impelle not the entire outdrive. I will have to think about this. I think I will try to borrow some car ramps. and back the trailer up on those. This will allow me to lower the drive all the way. Then empty the reservar, and pump more fuild it. That should allow mw to get all the air out. I don't think I have much air but I'm sure there is some.

Whole drive... That is the other option, get the back of the boat up far enough to get the drive all the way down, then use the procedure I described above... Why are you emptying the reservoir?

Chris...........

 

[MarkSee]

Re: Replacing Impeller on Alpha 1 Gen II

Why are you emptying the reservoir?.

Post #59 above, step 2 of the procedure Don posted says to do that which is extracted from service manual 14 page 1b-12.

Mark

 

[waterdowg]

Re: Replacing Impeller on Alpha 1 Gen II

Here is my thought to get the air out and get the drive all the way down. I will borrow a set of car ramps. I will back the trailer up the ramps far enough to get the drive all the way down. Then I will empty the reservar so it does not over flow. I will pump in more oil from the lower unit up to force out the remaining oil. How does this sound?

 

[Hoosmatroos]

Re: Replacing Impeller on Alpha 1 Gen II

When you catch the oil that overflows your reservoir, you can put it back in the bottle and re-use it. But as Chris says, the drive should be upright for say one hour. Air accumulates in the top of the lower half. Then pump in some oil. That should push the air to the small hole between lower and upper. Then let it sits over night to let the air work it's way to the top half.

 

[fat fanny]

Re: Replacing Impeller on Alpha 1 Gen II

Letting it sit with the cap off for a few days has always worked just fine for me. Just finished this whole procedure Sunday in under an hr just leave the cap off and periodically check the resivoir bottle.

 

[waterdowg]

Re: Replacing Impeller on Alpha 1 Gen II

Looks like the air burped out. I let it in the full down position. A few days later the reservar was down a nout 1/2". It has not move since.