150hp waterpump?

[bobkyle2]

so i got my seloc manual .. and ive been wanting to change my water pump beouse i just bought the boat and i dont think the pump is up to power... at idle it just spits out the tell tale.... not a consistant stream.. and upon start up it takes awhile to get water.... i know the pump hasnt been changed in 2 years... .

Now i have never had a lower unit apart on any kind of boat... and from what ive read alot of people do these on there own... after reading my manual im scared to tear into it... i wrench on all my vehicals and build mud race trucks... any suggestions ...tips... do's and donts... thanks guys... i know this comes up all the time... ive read alot about it on here

 

[bobkyle2]

Re: 150hp waterpump?

i just dont know about shimming... that sounds sketchy...

 

[bobkyle2]

Re: 150hp waterpump?

any info on what i have to do about shimming the pump... any info at all would be appreciated

 

[starcraft1982]

Re: 150hp waterpump?

Read up on what to look for in regards to inspecting the waterpump(wear on base plate,etc),It will probably be a simple impeller change and new gasket.No shimming involved.Oh,btw,its perfectly normal to take some time for water to start flowing out.The t-/stats have to open to allow flow.

 

[bobkyle2]

Re: 150hp waterpump?

thanks for the info... ive not owned a boat in about 10 years... and the last was a 200hp merc.... and it had a solid stream... and also picked up alot faster than this 150... so i would say it needs a tstat or pump and i know theyve not been changed in atleast 2 years.. so i want to change them to be safe.....

Info is greatly appreciated ..

 

[j_martin]

Re: 150hp waterpump?

If, when the tell tale is "spitting", it is cool or cold, it is perfectly normal. All the water from the tell tale has to go through the t-stats. If the engine is cold, that would be the little bit that gets through the air bleed pinholes in the t-stats.

In cold water, it's pretty normal for a sporadic tell-tale at idle, even with a warmed up engine.

Water pump is straight forward, but there's a few simple details that are very important. If I were you, I'd get the right manual for it. (mercury factory maintenance manual.)

hope it helps
John

 

[bobkyle2]

Re: 150hp waterpump?

thanks guys... i just got a seloc manual... and im not very impressed with it... sorry for the questions..

i think i have all the info i need for awhile thanks again

 

[hkeiner]

Re: 150hp waterpump?

A good way to get a handle on how well the cooling system is working is to install a water pressure gauge on the motor. This way you know if it is working well or not. Following is is some information on that.


http://forums.iboats.com/attachment.php?attachmentid=26808&d=1240517707

http://forums.iboats.com/attachment.php?attachmentid=39965&d=1256599637

http://www.diy-boat.com/index.php?option=com_content&task=view&id=151&Itemid=49

http://forums.iboats.com/attachment.php?attachmentid=26806&d=1240515681

 

[bobkyle2]

Re: 150hp waterpump?

A good way to get a handle on how well the cooling system is working is to install a water pressure gauge on the motor. This way you know if it is working well or not. Following is is some information on that.


http://forums.iboats.com/attachment.php?attachmentid=26808&d=1240517707

http://forums.iboats.com/attachment.php?attachmentid=39965&d=1256599637

http://www.diy-boat.com/index.php?option=com_content&task=view&id=151&Itemid=49

http://forums.iboats.com/attachment.php?attachmentid=26806&d=1240515681

Thanks... ya i really need to get a pressure gauge ... i dont have a pressure or temp gauge... been busy with work and on the weekends i just get in the boat and go... but i am going to get off work for a few days next week i beleive so get some stuff done...

Right now half of my motor is painted with all fresh paint and primerd on the other side... been like that for a week or so...

Thanks again for the info.. i will keep you posted

 

[Carolina Pearl]

Re: 150hp waterpump?

so i got my seloc manual .. and ive been wanting to change my water pump beouse i just bought the boat and i dont think the pump is up to power... at idle it just spits out the tell tale.... not a consistant stream.. and upon start up it takes awhile to get water.... i know the pump hasnt been changed in 2 years... .

Now i have never had a lower unit apart on any kind of boat... and from what ive read alot of people do these on there own... after reading my manual im scared to tear into it... i wrench on all my vehicals and build mud race trucks... any suggestions ...tips... do's and donts... thanks guys... i know this comes up all the time... ive read alot about it on here

Let us know how you make out!

 

[maxamy]

Re: 150hp waterpump?

see if this helps.... He does one small thing wrong ...gasket flip but if you read the comments below the video they explain the proper way to do it...otherwise it's a helpful video
http://www.youtube.com/watch?v=E-uzQi7IgwU