Yet Another Question

[Reel Kahuna]

As most can tell, I'm a Yamaha supporter . To prove it, here's another question for all.

My grandson who's a firefighter bought an 18’ Striper WA yesterday that has a Yamaha F115TXRC. The motor has high hours (2400hrs) but the price was right and it's an ideal boat for him to log hours in to get his firefighter boat crew certificate.

The seller told him that he used a cordless drill and while trying to remove the screw it broke, created a hole and fell into the hole.



Would that screw have fallen down into the lower part of the motor? Would this be a major job retrieving that screw?
Also is this cover part of the power head and will have to be replaced or can it be epoxied?

Or would he be better off locating another F115?

[cpostis]

That cover is his valve cover, Don't want any foreign material in there. In order to find and remove the material, you'd have to remove the cover. Looks like no big deal to me. Replace the gasket (about $40..

Here's a diagram and link to the part.

[IMG]Seal by Charles Postis, on Flickr[/IMG]

67F-11356-00-00 YAMAHA SEAL, CYLINDER 2

[robert graham]

Mention to grandson to leave the cordless drill in the toolbox....some outboard nuts/bolts/screws/fasteners tend to get stuck due to corrosion and need to be removed with penetrating oil and great care to prevent breakage.....

[Reel Kahuna]

That diagram certainly helped. Thanks

Can I order the part that fell in or do I have to buy a replacement valve cover?

Grandson didn't break it, the PO did. I think that's why he got the boat cheaper.

[TownsendsFJR1300]

Mention to grandson to leave the cordless drill in the toolbox....some outboard nuts/bolts/screws/fasteners tend to get stuck due to corrosion and need to be removed with penetrating oil and great care to prevent breakage.....

I think the PO broke it off if I read correctly Robert.


What year is that engine?

I'm trying to find that black plastic part. It doesn't show on the pic above.

I hope it's not being run till that part is out.. Hopefully it's still there.

Like our little "Bee" friend

[Reel Kahuna]

Motor is 2004 and hadn't been run since PO damaged it.

Hopefully I can order just the damage piece rather that the entire valve cover.

[TownsendsFJR1300]

I don't see that black plastic part at all:

2005 F115TXRD Yamaha Outboard CYLINDER HEAD ASSEMBLY Diagram and Parts

Just curious, does it appear to simply hold the spark plug wires or does it have another use? (vent??)

Does it have the cover, part #29?

Your pic doesn't appear so (maybe it's already off)..

[Reel Kahuna]

If it's just a plastic part that holds that spark plug wire, then I can turn a Delron piece on my lathe and make one .

[cpostis]

I think the PO broke it off if I read correctly Robert.


What year is that engine?

I'm trying to find that black plastic part. It doesn't show on the pic above.

I hope it's not being run till that part is out.. Hopefully it's still there.

Like our little "Bee" friend

That part is a clamp for the spark plug leads, there are two (one below the problem one). the leads appear not to be in place properly as well. Look at RK's pics.

Here is a drawing:

[IMG]Clamp by Charles Postis, on Flickr[/IMG]

Funny thing is I can't find the bolt (is there supposed to be one or not, maybe the clamp is just pressed into the hole?). The bottom one appears to out of place and a large diameter hole in the valve cover where it should be in place? On the opposite side of that half of the valve cover is a "cover, breather # 22 in my first drawing" that should keep oil from eascaping those holes?

A lot of theory, someone with experience with that model should reply.

Strange to me.Take a good look RK, and see what you think now.

[TownsendsFJR1300]

It appears there's an alignment pin / hole in the cover and a bolt that holds each on. Thus the two holes for each one...

Now if you look at the original pic, it appears to be ONE PIECE, not two separate ones..


*Also, with those high hours, if it hasn't been done, you may want to check valve clearances...

[fairdeal]

Strange.

So there's a dime-size piece of casting that's broken away -

if its attached to the plastic spark plug wire holder - fine -

if its fallen "inside" - you'll want to get that bit out..

Either way, you need to remove the valve cover

to "cobble up" :

1. fix for the hole
2. mount for the plug wire holder.

I'm imagining a couple of stainless washers, machine screw, couple of nuts.

or you could get a "new" cylinder cover:

68V-11191-00-1S Cylinder Head Cover 75 80 90 100 115 Hp Yamaha Outboard Motor | eBay

[cpostis]

Strange.

So there's a dime-size piece of casting that's broken away -

if its attached to the plastic spark plug wire holder - fine -

if its fallen "inside" - you'll want to get that bit out..

Either way, you need to remove the valve cover

to "cobble up" :

1. fix for the hole
2. mount for the plug wire holder.

I'm imagining a couple of stainless washers, machine screw, couple of nuts.

or you could get a "new" cylinder cover:

68V-11191-00-1S Cylinder Head Cover 75 80 90 100 115 Hp Yamaha Outboard Motor | eBay

Ahh, I thought RK was talking about the top bolt and that the drill bit broke and fell inside the cover. Fairdeal's pic of the one for sale clears a lot up. good price on that cover!

Now you have some choices RK

Here's an image from your manual. It says to remove timing belt and sprockets first, before removing the cover?

[IMG]Cylinder Head Cover by Charles Postis, on Flickr[/IMG]

[TownsendsFJR1300]

Here's an image from your manual. It says to remove timing belt and sprockets first, before removing the cover?

Likely the cam "sprockets" are super close to the valve covers.

[Reel Kahuna]

Man your guys rock!!

I'm going to buy that cover that FD posted. Thanks you.

I'll still see if I can turn a plastic plug on my lathe, just because .

Again thanks guys...Bravo

[cpostis]

Man your guys rock!!

I'm going to buy that cover that FD posted. Thanks you.

I'll still see if I can turn a plastic plug on my lathe, just because .

Again thanks guys...Bravo

If you private message me with your e-mail address, I'll be happy to send you Yamaha Service Manual information on that motor. Should help you out a bunch!