9.8 Nissan/Tohatsu cylinder material?

Yeah - another Nissan 9.8 question - I'm curious as to what metal is used in the 2008 9.8 Nissan/Tohatsu 4-stroke cylinders? Are they, and the engine block all a single casting of aluminum alloy - or is there a steel liner?

I bought the Tohatsu "service manual" - but it's a real $29 joke - you'd think they could translate Japanese into English better by now - and the "detailed" drawings and supporting text really sucks!

A bit better than just the owners manual I suppose - but generally, a disappointing waste of money!

Re: 9.8 Nissan/Tohatsu cylinder material?

You might want to direct your many questions to:

info@tohatsu.com

Re: 9.8 Nissan/Tohatsu cylinder material?

TOHATSU GURU said:

You might want to direct your many questions to:

info@tohatsu.com

Click to expand...

UMmmmm - I had sorta THOUGHT that THIS forum was available for answering questions of this type - and that some here who dig into the innards of these engines daily, could provide courteous and appropriate replies - or does my presence and questions disturb you?

Obviously, I'm a new owner of the type motor THIS forum seems designed to assist - and consequently have a few related questions. If you in particular prefer me to leave, and take my "many questions" with me, step up openly, and say so...

Re: 9.8 Nissan/Tohatsu cylinder material?

Ask all the questions you want to. But, no one on this board (including me) has the slightest clue as to the exact alloy used in the block. I thought I was directing you to the one source where you MIGHT/COULD get the information you wanted.

And if I had a problem with you...I would tell you.

Re: 9.8 Nissan/Tohatsu cylinder material?

I wasn't asking as to the exact composition of the block or cylinder material, but whether the block and cylinders were all the same material, as I suggested HERE:

Are they, and the engine block all a single casting of aluminum alloy - or is there a steel liner?

Click to expand...

...or perhaps sleeves are installed for the cylinders. I've seen that method used in many different engine types - it's usually quite obvious when the engines are apart - and I had thought that might be true here as well.

Reason I am curious, is that USUALLY, a steel sleeved aluminum block is more durable and better lifespan and quality than those simply using the aluminum alloy also as the cylinder bore material - and I'm curious as to how Tohatsu does it - I don't mind an aluminum cylinder in a $100 lawnmower - but sorta hope for better from a $2000 marine engine..

It *seemed* a pretty easily answered question, but apparently not...

Re: 9.8 Nissan/Tohatsu cylinder material?

"I'm curious as to what metal is used in the 2008 9.8 Nissan/Tohatsu 4-stroke cylinders?"

That's why you received the answer that I gave you. Since I assumed that you would ask Tohatsu I didn't see any point to answering the following question:

"Are they, and the engine block all a single casting of aluminum alloy - or is there a steel liner?"

There is a liner. Now you don't have to spend the additional .00007 seconds copying your question to them

The factory service manual is designed for use by skilled outboard technicians that are already familar with the product. A lot of general knowledge information is left out of it for that reason. It's not the most consumer friendly manual that I have seen, but it is accurate...Mostly

Re: 9.8 Nissan/Tohatsu cylinder material?

What you clearly (deliberately?) missed, or ignored, is that they were NOT 2 separate questions, but both part of the SAME question - you know, ALL in the same paragraph!

Why are you so deliberately being difficult over this? I'm not challenging your reputation, knowledge or authority - but rather, asking simple questions as a new motor owner that are easily answered by the more experienced users here - THIS one could have easily been answered properly the FIRST time you posted a reply to it - without all the obvious display of weary disgust that your time should be so rudely imposed upon!

Yes, I find your responses in this thread personally and needlessly offensive, and HARDLY a credit to the spirit of this board!

I sadly, seriously, suspect the 2 of us are NOT going to get along as long as you continue to display an attitude of a long-suffering, imposed upon, holder of all knowledge of any significant value...

I'd like to think that this board offers a wide variety of helpful, courteous assistance to both long, and short-term boat/motor owners - or that if there IS no known answer, the question be passed over, rather than pass time offering instead, a demeaning non-answer - such as the "your MANY questions" crack you couldn't resist inserting earlier...

Yeah - it's looking more and more like I'd probably be better off taking myself and remaining questions as they occur, elsewhere - you win, a contest there never was!

Feel better now?

Re: 9.8 Nissan/Tohatsu cylinder material?

You know I was really trying to be nice to you. Hence the little smiley faces. I'm not sure why you are reacting this way as my responses to you, in every case, have been polite and informative. There was never any intent on my part to offend you and frankly you are really reaching to find anything to complain about. I will not respond to any further remarks that you make here as I have no desire to offend you further.

In addition, the "many questions" part of my earlier post was not meant to be offensve. You have posted a variety of questions in your short time here and I was genuinley trying to help you by directing you to the factory source for your answers. So much for being appreciated for being helpful.

Re: 9.8 Nissan/Tohatsu cylinder material?

There is a liner.

Click to expand...

That simple statement would have eliminated ALL that followed - and provided the answer I was obviously looking for to begin with.

Thank you for that - and apologies to all or any others reading this - hopefully, further threads will be more helpful, and less abrasive - real or imagined!