Impeller really last 11 years?

[Brock.Ward]

I just bought a 1988 eagle speedboat with a 1988 suzuki 140hp dt140 oil injection outboard. I took the boat out for the first time last weekend and it ran perfect. Here is my question, I wanted to get out today and this week but asked the previous owner if he ever replaced the impeller, he said he never did that he remembers and owned it since 2003. I find this so hard to believe as I doubt an impeller would last this long. I can order the housing and impeller for $60 on amazon i am seeing(unless someone recommends somewhere else cheaper). but it wont be here for a few days and I was hoping to take advanteage of this nice weather. It spits water just fine, its not hot water, and I heard that this engine has an alarm if it did overheat, so if thats true i can keep an eye on the water till it gets here and hopefully be fine for the week. Any information would be helpful, oh and if i do take the lower unit off to inspect it will I be able to put it back together if its fine or is there a gasket that will have to be replaced. Thanks guys!

 

[nayborbob2]

Just bought 1986 yamaha 70 etlj and impeller was never changed. I replace it for peace of mind but the old one still looked good. ..I just didn't trust it

 

[GA_Boater]

Replace the impeller. After 11 years, don't even think about reusing it. And it's living on borrowed time.

 

[Brock.Ward]

tried to get lower unit off last night removed bolts about 1/2 the way thing wouldnt budge, i gave up dont want to bang on it, might just take it in...

 

[Brock.Ward]

I have read in many places that these lower units can get seized up and are basically impossible to remove, looks like i'll have to wait it out and hope it lasts this year without overheating. Dont have the extra $500 to get it removed or replaced...

 

[nayborbob2]

If you bang on it be sure to use a rubber mallet. My '86 came apart pretty easy, but it was well cared for. Are you sure you have all the bolts loose? I had 1 or two hidden that were not obvious without manual or prior experience.

 

[nayborbob2]

If you bang on it be sure to use a rubber mallet. My 86 came apart pretty easy, but it was well cared for. Are you sure you have all the bolts loose? I had 1 or two hidden that were not obvious without manual or prior experience.

 

[99yam40]

this is one of the reasons to do the maintenance the manufacturer recommends, plus lubing bolts and shafts so they come apart too.

Most find they cannot even get all the bolts out after all those years, so you are ahead of the pack

 

[jc55]

I got a Yamaha 9.9 lower unit off that was completely seized by salt water use and a lack of maintenance. I use "Tap Magic" cutting oil as a penetrating oil. It really creeps places overnight. Even with the rubber mallet, don't bang on the anti cavitation plate. You'll break it. Heat is your friend as well. might be a good fall project. $500 for an impeller change would be a matter of principle!

 

[GoFastr]

Keep tapping on it from all sides. Things get a little crusty especially if they've sat. All a shop will do it the same thing. Use something small to wedge around it without prying too hard in addition to wacking it with the rubber mallet. Eventually it will free itself. Oh and shoot some lubricant into the crease as you create it to help loosen up the crud.