Evildwarf
Jetboaters Lieutenant
- Messages
- 377
- Reaction score
- 458
- Points
- 157
- Location
- Woodstock GA
- Boat Make
- Yamaha
- Year
- 2014
- Boat Model
- Limited
- Boat Length
- 24
Post edited to remove the more inflammatory comments that may be seen as an indictment of dealer service bays nationwide, I really do not mean to offend anyone.
Last year I paid a dealer to do the 10 hr on our 192 since I'm not much of a DIY type with engines and I was sure that there was some deeply complicated rocket science going on with the intermediate bearing lubrication process plus the dealer would surely be checking the boat over "aft to baft" for needed adjustments.
It turns out that the 10 hr is the most expensive oil change in the history of the free world!
Fast forward to yesterday, our 242 is due for the 10 hr and after much research on the subject I have concluded that there is nothing scientific about the 10 hr service. The entire intermediate bearing mystery is such bullshit, either Yamaha doesn't have any idea how to explain the process or the execs think the whole thing is just funny.
What I mean is:
1: yamaha makes the bearing, assembles the parts anyways, and they don't know how to properly maintain it? There are a million different posts on this subject, everyone's "yamaha service guy" says something different (mine said "squirt some grease in there once in awhile and you'll be fine") wow thanks Tommy Technical!
2: the general consensus on the forums is that these are sealed bearings and the grease is just a water seal to prevent intrusion and degradation of the bearing. There is no way to calculate (despite the overly complicated algorithms put forth on these forums on calculating the molecular weight of marine grease in zero gravity) the amount of grease to put in the damn things.
3: the information in the yamaha manual is suspect. Why? Consider the "break in period" conundrum on the engines. If we are supposed to observe this break in period (which I did to the letter, 5 minutes at this RPM, an hour at this one etc, as it states in the manual) then why do these boats have time on the motors when they are delivered? There is some evidence that all boats are tested before leaving the factory, both my Yamahas have had time on the engines when purchased new, so who does the break in period? This is some kind of "engine elf magic" or else just more bullshit put out by a company that builds a great product but lacks some skill in communicating with the end users.
We have several dealers on this forum, how about an opinion here?
Ok so back to the 10 hr. I went to the dealer and bought the filters, oil, and marine grease, got some puppy pads from the pet store, Attwood oil extractor from Wallymart, loaded up needed tools and headed to the marina.
Greased the bearings (two rules seem to apply, slowly inject grease and grease is better than no grease but don't overload the damn things) so I scientifically calculated 12 pumps on ye old grease gun was the precise amount to effect the desired result. I'll be periodically injecting 3 pumps of grease throughout each season so this seems to be about right. (Let the shouting begin on that statement)
Moved on to the oil change, ran the motors, spread the puppy pads, sucked all the oil from the port motor and bam I forgot the filter wrench. Back to the house for the wrench and completed the oil change on both motors. Cleaned up, ran the motors, checked levels, checked for leaks and we are good to go.
Seems to me a rather simple procedure (even for a mechanical dunce like me) to be such a pricey service in a dealership service bay.
One piece of advice, grease the bearings before you run the motors since you have to crawl into the engine bay to reach the zerc fittings. Spooning with a hot motor is not my idea of a good time. (I bear hugged the merc in my old 4winns several times on the water and dammit, burns hurt)
Long post, congrats for making it all the way through.
Just thought I would share a little.
Sorry.
I do love my boat, really, a great product.
Last year I paid a dealer to do the 10 hr on our 192 since I'm not much of a DIY type with engines and I was sure that there was some deeply complicated rocket science going on with the intermediate bearing lubrication process plus the dealer would surely be checking the boat over "aft to baft" for needed adjustments.
It turns out that the 10 hr is the most expensive oil change in the history of the free world!
Fast forward to yesterday, our 242 is due for the 10 hr and after much research on the subject I have concluded that there is nothing scientific about the 10 hr service. The entire intermediate bearing mystery is such bullshit, either Yamaha doesn't have any idea how to explain the process or the execs think the whole thing is just funny.
What I mean is:
1: yamaha makes the bearing, assembles the parts anyways, and they don't know how to properly maintain it? There are a million different posts on this subject, everyone's "yamaha service guy" says something different (mine said "squirt some grease in there once in awhile and you'll be fine") wow thanks Tommy Technical!
2: the general consensus on the forums is that these are sealed bearings and the grease is just a water seal to prevent intrusion and degradation of the bearing. There is no way to calculate (despite the overly complicated algorithms put forth on these forums on calculating the molecular weight of marine grease in zero gravity) the amount of grease to put in the damn things.
3: the information in the yamaha manual is suspect. Why? Consider the "break in period" conundrum on the engines. If we are supposed to observe this break in period (which I did to the letter, 5 minutes at this RPM, an hour at this one etc, as it states in the manual) then why do these boats have time on the motors when they are delivered? There is some evidence that all boats are tested before leaving the factory, both my Yamahas have had time on the engines when purchased new, so who does the break in period? This is some kind of "engine elf magic" or else just more bullshit put out by a company that builds a great product but lacks some skill in communicating with the end users.
We have several dealers on this forum, how about an opinion here?
Ok so back to the 10 hr. I went to the dealer and bought the filters, oil, and marine grease, got some puppy pads from the pet store, Attwood oil extractor from Wallymart, loaded up needed tools and headed to the marina.
Greased the bearings (two rules seem to apply, slowly inject grease and grease is better than no grease but don't overload the damn things) so I scientifically calculated 12 pumps on ye old grease gun was the precise amount to effect the desired result. I'll be periodically injecting 3 pumps of grease throughout each season so this seems to be about right. (Let the shouting begin on that statement)
Moved on to the oil change, ran the motors, spread the puppy pads, sucked all the oil from the port motor and bam I forgot the filter wrench. Back to the house for the wrench and completed the oil change on both motors. Cleaned up, ran the motors, checked levels, checked for leaks and we are good to go.
Seems to me a rather simple procedure (even for a mechanical dunce like me) to be such a pricey service in a dealership service bay.
One piece of advice, grease the bearings before you run the motors since you have to crawl into the engine bay to reach the zerc fittings. Spooning with a hot motor is not my idea of a good time. (I bear hugged the merc in my old 4winns several times on the water and dammit, burns hurt)
Long post, congrats for making it all the way through.
Just thought I would share a little.
Sorry.
I do love my boat, really, a great product.
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