Balancer Assembly replacement

[chrissy t]

I have a 2005 Yamaha F 150 which I have had for 3 years and very happy with. My only fear is the dreaded balancer problem. I am thinking of replacing this ,I am very mechanically minded. My question is I have seen instructions on how to change and wondering how complicated it is.The only thing I am unsure of is setting the alignment of the cams. Am I making a big deal about nothing (the alignment) ? Thanks for any replies, Rob

[boscoe99]

During installation of an F150 balancer the camshaft is not affected. The camshaft is at the back of the motor, the balancer is at the front. The camshaft drive belt is not removed.

The balancer is clocked to the crankshaft but it is just a simple matter of following the installation instructions.

Having said this, pay a trained mechanic to oversee your installation of the new balancer. You will then have the knowledge and expertise to do the installation completely on your own in the future.

[chrissy t]

Thanks for the reply, but I did not mean camshaft. What I should have said was aligning the balancer shafts.Sorry for misinformation.

[amahaork]

pay a trained mechanic to oversee your installation LOL

[Sequoiha]

It is a very simple procedure, I can do this in about 35 minutes, just be mindful of the alignment of the balancers, and the cleanliness of the mating surfaces,

[boscoe99]

It is a very simple procedure, I can do this in about 35 minutes, just be mindful of the alignment of the balancers, and the cleanliness of the mating surfaces,

Where have you been? Haven't seen a post from you in a long while.

[boscoe99]

pay a trained mechanic to oversee your installation LOL

Would you let someone do surgery on your motor that has not been trained or who has more than likely never worked on a Yamaha before?

I don't think so. But if you do some may think of you as a fool.

Now don't go thinking that I am calling you a fool. I am not.

You might not know it but the best Delta Air Lines mechanic, who has been working on every airplane ever owned by Delta in the last forty years, is not authorized to go work on a part that he has never been trained on. He must first do that work under the supervision of someone that has knowledge of the work to be done. And more than likely Delta is not going to be letting him open up an engine to work on it. Someone with specialized knowledge will be doing that.

Should an outboard motor be any different? It is, but look at the state of the outboard motor industry.

[ausnoelm]

Not exactly sure I agree 100 percent, sometimes, plain old "nuts and bolts" mechanics can be performed by almost anyone, certain things might need special training, but lots of equipment is the same thing.

[99yam40]

Not exactly sure I agree 100 percent, sometimes, plain old "nuts and bolts" mechanics can be performed by almost anyone, certain things might need special training, but lots of equipment is the same thing.

You have to understand there are people out there that cannot even boil an egg properly much less work on an outboard motor without some type of training.
Some of us grew up taking things apart and putting them back together again, but most people have not

[boscoe99]

Where is Rodbolt. I want to ask him a question.

Assumption is that he is the shop foreman. He is responsible to the owner if anything gets broken or damaged during a repair that is under his watch, that is caused by him or his underlings.

He hires a trained mechanic but who has no four stroke Yamaha experience. It is a V6 F200. A camshaft has to be removed and replaced in order to install a new valve bucket. The belt drive tensioner has to be removed before the camshaft can be removed.

Question is, would he let his mechanic do this work without any over sight from the boltman or someone else that has done this work before and who has insite into the possible problems that can come with it?

[boscoe99]

You have to understand there are people out there that cannot even boil an egg properly much less work on an outboard motor without some type of training.
Some of us grew up taking things apart and putting them back together again, but most people have not

You are exactly correct.

Now here is what has been my experience. A knowledgeable and well trained mechanic is sometimes leery of tackling a new-to-him job because he knows from the school of hard knocks the pitfalls that can prevail. He studies and thinks about the work to be done and how it is to be done. He proceeds cautiously.

The unknowledgeable will sometimes blindly take on any task throwing caution to the wind. They can paint themselves into a very dark corner in a hurry.

Let's ask Mr. Bolt how many times he has had to correct the screwups of backyardigans whos self esteem exceeded their skill level.

I am all for folks doing stuff on their own. But, there are better or worse ways to go about doing it. There is no shame in having a knowledgeable mechanic offer instructions to the unknowledgeable. There is no shame in not knowing how to perform certain tasks. We all did not know shit at one time. Our mamas all wiped our ass's for us.

[chrissy t]

As I had said, I am very handy with tools and have been working on my own outboards for many years. I have looked at the bulletins on how to replace this and it is a complete unit that is being replaced.I am very capable of replacing parts. As I stated my only concern was aligning the balancers correctly as shown in the bulletins.I have done many services on this motor including changing fuel injectors and changing the filter in the VST tank .Thank's for all the relies.

[ausnoelm]

The balancer is pretty simple to replace, I don't quite get all this training needed on every mechanical device in the known world before you can touch anything, if that was truly the case, you would spend your life at training and never have time to actually work....of course training is necessary, but not for every part of every piece of equipment ever made. I do agree some people don't know how to repair even minor things, but lots do have good mechanical aptitude and don't require training to (say) change bolt on parts?

[boscoe99]

The balancer is pretty simple to replace, I don't quite get all this training needed on every mechanical device in the known world before you can touch anything, if that was truly the case, you would spend your life at training and never have time to actually work....of course training is necessary, but not for every part of every piece of equipment ever made. I do agree some people don't know how to repair even minor things, but lots do have good mechanical aptitude and don't require training to (say) change bolt on parts?

There's the problem. You don't get it.

If the guy was as confident of his mechanical abilities as he says that he is, why in the world would he be asking us about doing it?

Have you ever loosened a camshaft drive belt on a Yam V6 four stroke?

Yamaha cautions and cautions about being very careful loosening it. Folks try to file claims all the time with Yamaha for a defective tensioning device. That was only defective after the mechanic got done messing with it.

Having said this, there is nothing like the school of hard knocks as being a valuable educator. And Yamaha gets to sell more parts. It is a win win situation.

[Sequoiha]

Where have you been? Haven't seen a post from you in a long while.

just hanging out and reading, seems to be a lot of technicians on here, good answers seem to get lost in all the advice. Plus i have a full time job and not much sit down computer time. hope you had a good christmas and new years.