Engine Help Please?

[trackgold]

i just purchased a 81 21ft mark twain with a merc 898 outdrive and a gm 350. the guy who had it before me never finished putting the motor back together. does anyone have or can someone point me in the direction of a few finished pics of this motor so i can just make sure im putting everything together properly? also how would i kno what size belts to be running and when i got to replace the prop what should i kno for that? thanks for any info you can provide!

 

[NHGuy]

Re: Engine Help Please?

Check Here http://forums.iboats.com/showthread.php?t=342393
this is the link to Mercruiser shop manuals etc.

 

[haulnazz15]

Re: Engine Help Please?

Post up some pics of the boat/engine so we can see what we're working with.

 

[jtybt]

Re: Engine Help Please?

It also might help to know how far along the re-assembly has gone...hence the pix.

All torque and engine specs are GM and you can get them from any (GM V8) auto/truck manual you can get your hands on.

 

[Bondo]

Re: Engine Help Please?

Ayuh,... A picture would be Great, as the 898 drive was used with 305 motors...
The same drive behind a 350 was called the 260...

 

[trackgold]

Re: Engine Help Please?

Check Here http://forums.iboats.com/showthread.php?t=342393
this is the link to Mercruiser shop manuals etc.

i downloaded a few but the pictures didnt come put to good!

front

side

block number from what ive found its a gm 350

dont kno?

filter but i dont kno where it goes

manifolds i kno where they go

from what i gather the alternator mounts underneath the power steering pump on the right side of the motor if your looking at the water pump. the dont kno pic im guessing that would mount somewhere left of the water pump. the filter i have no clue. and how would i go about ordering belts? both manuals i downloaded didnt offer anything in a part number or maybe i just didnt see it. so in the mean time ill go back and read again. again thanks for any help you can provide!

 

[ErieRon]

Re: Engine Help Please?

Here's a link to a site with pictures and part numbers (one of many); http://www.mercruiserparts.com/selectModels3.asp?type_id=8

You need to make sure you have the right engine/drive combo to look up...305/350 etc........seems like that drive was on a 305 ???

Hope this helps.

Once you find out what you need, try here first at iboats, eh.

 

[trackgold]

Re: Engine Help Please?

anyone else???

 

[jtybt]

Re: Engine Help Please?

If the PO use of silicone is any indication, he didn't know what he was doing.

It's ugly. I'd re-evaluate the whole engines suitability for repower.

 

[trackgold]

Re: Engine Help Please?

the block was looked over by a gm mechanic and i was given a thumbs up or i would have never brought this home! but i find it hard to believe with so many members on here no one has a pic or something i can use. the manuals were of some help but a complete picture would be great!

 

[gshldon]

Re: Engine Help Please?

i will see if i can get some pics for you tonight when i get some time, as i have the same motor in my boat. Let me know if you still need them,

 

[trackgold]

Re: Engine Help Please?

ya i could still use a few if you get time. mainly just a head on view and one of each side. im just lookinf for something to reference off of.thanks!

 

[ChrisCraftJohnny]

Re: Engine Help Please?

Wow! You have a boat-load (pun intended) of work to do!

Good luck! I hope you get her running!

Johnny

 

[jtybt]

Re: Engine Help Please?

The thing is, over the years, Merc has mounted all the fan belt accessories in all different places on the front of the engine. About the only constant has been the bravo style raw water pump location.


sooooo....there is no right or wrong, only the brackets will tell...and pulley alignment

 

[trackgold]

Re: Engine Help Please?

The thing is, over the years, Merc has mounted all the fan belt accessories in all different places on the front of the engine. About the only constant has been the bravo style raw water pump location.


sooooo....there is no right or wrong, only the brackets will tell...and pulley alignment

ya i knew i wouldnt have very much luck getting this goin but ill get her together one way or another. just need some pics as a general reference. the manuals i downloaded those pics were just a bit to dark!