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Gamalot wrote:
Good point JF and you can't do it at $100+/hr in a shop but a DIY top end rebuild is doable for some of us with friends and some mechanical abilities. At $3,000 I too would go for a brand new one and pay the bills. Buying a used other guys headache is not my idea of good finances unless the other guy is rich and just plain dumb.
My motor is an '84 EV 90 and if it does not run for pretty cheap then my next one will be a 2010-2011 and I'll be asking for forgiveness because it is easier then getting permission.
Gary
My brother has money. He bought a Mercury Optimax 135 of the same year with only 400 hours on it. They charged him 2 thousand dollars for rigging, new gauges and oil tank. Something that could be done in a days time. I would have done it for him but we go to Lake Placid, Fl every year for a week in the summer and he doesn't have time to waste.
John Fyke
Re-Fit or Reef It
1979 15' Sport with Super Sport conversion and 70hp mercury.
My brother also John and what is even worse is he thinks the shop that hoses him the hardest is the best because they get the big bucks for all their repairs. His last repair was in the shop 3 times to finally get it fixed and what finally did fix the issue had absolutely nothing to do with the $900 in parts and labor they had already done. Parts changers.
D, most unfortunate... I have a Yamie 90 as well and it has been a very solid runner... Like any other engine it will die eventually... Today, if I to make a decision to do a a rebuild I would look at at other options. New (older model if possible) if I can spend the money... Used from a dealer with a warranty of some kind, or an engine you know from a friend.
I would stay away from anything on ebay or online that says it has been professionally rebuilt... You would never know if it has been done according to specs and by someone who is really qualified.
To spend $1500 or more on a 25 year old engine does not make good sense to me... Unless you can find a a good power head to swap with and the total cost is below 1500...
If you part this out... The power trim if it works can sell for $250, Lower unit $350, misc parts $300 or more... another 50 for the cowl...
my 2 cents
Edited by joninnj on 07/12/10 - 7:36 PM
Jon in NJ
Many other boats and outboards in my boating history
The Whaler is the one I like the best!!!
dmrose wrote:
Not fuel... Took it to a mechanic... Scored cylinder and zero compression... Ouch. My first boat, first Whaler, first engine melt down.
Any suggestions?
My guess is that your fuel flow problem starved a single cylinder and caused the damage. I don't know if you are aware that on these triples, it's entirely possible to bore just the single cylinder that failed, and install an oversized piston - there's no need to have a full rebuild done.
If your mechanic does not know that, you may wish to consider finding another mechanic. Check out the compression in the other cylinders, and if they're OK you may be able get away reasonably cheaply. Oh, and don't forget to have the fuel problem taken care of or it'll happen again:-).
However, I do agree with the previous post that you've got to be careful how much you invest in an older motor.
Given the cost of a repower with new, (7-10K), or the potential headache of someone elses' used motor that you don't know, the prospect of spending 2-3K to repair what you have and know is not all that scary to me.
My current motor ('90 'rude 88 SPL) is now 21 years old with about 150 hours on a good rebuild. When it let's go I don't know what I will do. It burns a good amount of fuel and limits my range, but it is also one of the longest lasting motors ever made by all accounts. If it dies, I can do a power head myself for about 2000-2500.
I currently have a 1999 FICHT 90 with a bad rod and scored crankshaft in the garage. A rebuilt power head off the internet is 2200-2900 if I do the swap myself, with no warranty. Here in the bay area, most shops are quoting close to 4K to do the work, and they are not jumping over themselves to get the job. I worry about even doing this one since the cause of the failure has never been pinpointed.
I am a service rep, and do most of my own work. For the most part I do not trust many mechanics fom too many bad experiences. If I need repairs I try to them myself as I have the most invested personally.
I want to repower, but the investment to do so is very hard to justify it, since it will never be recouped. Mileage and fuel burn rates are gonna take a lot of hours to offset that cost.
If what I read about the yammi 90's is true, they are very good motors. It sounds like the failure was fuel delivery from the tank to the motor, which to me is another factor to consider. I think I would examine the rebore/oversize psiton route and make sure my Seatow membership is paid up.
Thanks all for the input. According to the mechanic he suggested that the motor was salted up pretty bad (i flushed it every time without fail) when he removed the head. He proposed that a rebuild wouldn't be worth it in the long run.
I'm seriously thinking of buying this used 1995 90hp that showed up on Craigslist on the day she blew up.
The owner purchased it from someone who repowered with a 4 stroke. It used to ride on a Whaler. We are considering meeting at Bayside Marine in Everett to have it looked over by a mechanic. Baring a passing grade I would just bring the boat there and have it installed professionally. Hopefully I can have some security by paying a shop to take a look at it. If I was confident it was a good choice I would run it for the summer then look to sell the boat.
@ Phil, It had overheating problems when I first bought it, but with repeated use in fresh water, a new thermostat, sensor, and a new impeller the issue went away. I haven't had the alarm go off in over a year. It WAS running great, then kapow....
