Have you had a 1.8 timing chain failure, was it in warranty and how has Yamaha handled it?

[txav8r]

So the upgrade kit, any video to the upgrade repair? I might have missed it, how much is the upgrade kit on an N/A 1.8L?

 

[swatski]

@txav8r it will be north of $1k, those new TCs need different crankshaft sprockets etc., several parts needed for a retrofit.

I personally would not consider it.
(I might consider it in 2014 SVHO ski. But that is a completely different beast, running 270hp w/same old TC as a 1.8l N/A boat)

 

[haknslash]

So the upgrade kit, any video to the upgrade repair? I might have missed it, how much is the upgrade kit on an N/A 1.8L?

The kit costs $1,498 https://www.4-tecperformance.com/index.php?main_page=product_info&cPath=16_82_167&products_id=4050

Kit contains the following components:
Crankshaft
Timing Chain
Cam Sprockets
Dampeners (chain guides)
Cam Gear bolts

 

[txav8r]

I read several comments that the proactive approach isn't necessary for an n/a boat. Just when I am getting ready to trek 1000
Miles and spend time on Lake Powell. Can you imagine single engine or eing towed 50 miles??? I lost my warm and fuzzy. And here I was just concerned about the coach making it!

 

[haknslash]

Ok I have taken the painstaking, mind-numbing, duty to look at every single year of 1.8 L engine parts and quantify all the part numbers. Basically nothing changed from 2009-2015. 2016 is the only year parts have changed.

It's interesting that the kit they are selling doesn't a new crankshaft bolt but when I was going through all the parts list diagrams I noticed the crankcase bolt received a minor revision represented by the "-01-00" in the part number. How significant that bolt I'm not sure but I spotted the difference and figured I would include it. All previous year boats now call to use the new crankshaft bolt so I'm guessing it's interchangeable with either crankshaft design.

2016 HO/SHO/SVHO parts
crankshaft: 6ET-11411-00-00 $1,043.83
timing chain: 94591-74152-00 $46.45
cam sprockets: 6ET-12176-00-00 $30.19
chain guides (dampener): Guide 1 6ET-12251-00-00 $33.77 - Guide 2 6ET-12252-00-00 $121.51
cam gear bolts: 90105-07006-00 $3.11
crankshaft bolt: 6S5-17031-01-00 $16.61

2015 HO/SHO/SVHO parts
crankshaft: 6S5-11411-00-00 $1,064.38
timing chain: 94591-66152-00 $35.19
cam sprockets: 6D3-12176-10-00 $55.25
chain guides (dampener): Guide 1 6BH-12251-00-00 $37.32 - Guide 2 6BH-12252-00-00 $127.90
cam gear bolts: 90105-07004-00 $3.19
crankshaft bolt: 6S5-17031-00-00 now superseded by 6S5-17031-01-00 $16.61

2014 HO/SHO/SVHO parts
crankshaft: 6S5-11411-00-00 $1,064.38
timing chain: 94591-66152-00 $35.19
cam sprockets: 6D3-12176-10-00 $55.25
chain guides (dampener): Guide 1 6BH-12251-00-00 $37.32 - Guide 2 6BH-12252-00-00 $127.90
cam gear bolts: 90105-07004-00 $3.19
crankshaft bolt: 6S5-17031-00-00 now superseded by 6S5-17031-01-00 $16.61

2013 HO/SHO parts
crankshaft: 6S5-11411-00-00 $1,064.38
timing chain: 94591-66152-00 $35.19
cam sprockets: 6D3-12176-10-00 $55.25
chain guides (dampener): Guide 1 6BH-12251-00-00 $37.32 - Guide 2 6BH-12252-00-00 $127.90
cam gear bolts: 90105-07004-00 $3.19
crankshaft bolt: 6S5-17031-00-00 now superseded by 6S5-17031-01-00 $16.61

2012 HO/SHO parts
crankshaft: 6S5-11411-00-00 $1,064.38
timing chain: 94591-66152-00 $35.19
cam sprockets: 6D3-12176-10-00 $55.25
chain guides (dampener): Guide 1 6BH-12251-00-00 $37.32 - Guide 2 6BH-12252-00-00 $127.90
cam gear bolts: 90105-07004-00 $3.19
crankshaft bolt: 6S5-17031-00-00 now superseded by 6S5-17031-01-00 $16.61

2011 HO/SHO parts
crankshaft: 6S5-11411-00-00 $1,064.38
timing chain: 94591-66152-00 $35.19
cam sprockets: 6D3-12176-10-00 $55.25
chain guides (dampener): Guide 1 6BH-12251-00-00 $37.32 - Guide 2 6BH-12252-00-00 $127.90
cam gear bolts: 90105-07004-00 $3.19
crankshaft bolt: 6S5-17031-00-00 now superseded by 6S5-17031-01-00 $16.61

2010 HO/SHO parts
crankshaft: 6S5-11411-00-00 $1,064.38
timing chain: 94591-66152-00 $35.19
cam sprockets: 6D3-12176-10-00 $55.25
chain guides (dampener): Guide 1 6BH-12251-00-00 $37.32 - Guide 2 6BH-12252-00-00 $127.90
cam gear bolts: 90105-07004-00 $3.19
crankshaft bolt: 6S5-17031-00-00 now superseded by 6S5-17031-01-00 $16.61

2009 HO/SHO parts
crankshaft: 6S5-11411-00-00 $1,064.38
timing chain: 94591-66152-00 $35.19
cam sprockets: 6D3-12176-10-00 $55.25
chain guides (dampener): Guide 1 6BH-12251-00-00 $37.32 - Guide 2 6BH-12252-00-00 $127.90
cam gear bolts: 90105-07004-00 $3.19
crankshaft bolt: 6S5-17031-00-00 now superseded by 6S5-17031-01-00 $16.61

Source used for pricing, part diagrams and part numbers: http://www.yamahapart.com/

 

[Ronnie]

$1,500 per engine, $3k for both engines. Pass. I will cross this bridge if / when I have to but would probably look for a used Waverunner to scavenge the parts or entire engine out of.

 

[haknslash]

Roughly $1,250 if you bought the parts on your own as opposed to buying a pre-sourced kit of the same parts for more money.

 

[itsdgm]

I know that I'm late to this thread. I have to say that I'm glad that this doesn't seem to apply to my vintage engine. However I've had a rough year, engine wise (stuck valve, still working through the repair) that has ended up costing me (due to my crazy schedule) close to a season of down time. Anyway, during my repair, we used quite a few gaskets in the process. Valve cover, head, exhaust, etc. I wonder if the kit comes with the required gaskets? If not, it would be worth investigating that cost too into the repair.

 

[swatski]

I know that I'm late to this thread. I have to say that I'm glad that this doesn't seem to apply to my vintage engine. However I've had a rough year, engine wise (stuck valve, still working through the repair) that has ended up costing me (due to my crazy schedule) close to a season of down time. Anyway, during my repair, we used quite a few gaskets in the process. Valve cover, head, exhaust, etc. I wonder if the kit comes with the required gaskets? If not, it would be worth investigating that cost too into the repair.

I think that is an excellent point, and the reason (along with low frequency of those malfunctions in 1.8l n/as) I wouldn't touch it, unless I had too.

--

 

[Zarrella]

So @Bruce still in the market for a new Yammi??

 

[Evil Sports]

Im NOT worrying about this at all. When I winterize I might look under the valve covers but Im not giving it a second thought till then. Thanks however for taking all the time to look this shit up

 

[Bruce]

So @Bruce still in the market for a new Yammi??

@Julian is enjoying his new 2016 242X. I admit I am a little jealous of the new boats. But our 230 is so perfectly setup for our needs that it will be hard to start over with a new boat.

 

[Gym]

Im NOT worrying about this at all. When I winterize I might look under the valve covers but Im not giving it a second thought till then. Thanks however for taking all the time to look this shit up

Although this doesn't affect me I agree with @Evil Sports. I would not interrupt my boating season this late. Inspecting your timing chain after the season requires no more work than inspecting the scupper valves that were troublesome.

 

[gpp7824]

The timing chain part was replaced in all 1.8l engines, N/A and supercharged, produced after 07/15.
This from a very good source.

How can we check our motor build date. I know mine was built in 2015 but dont know the month, this is on a 2016 model.

 

[swatski]

@gpp7824 Not the best shot, but here is a guide from the manual:



--

 

[haknslash]

Yup mine was built on 1/16

 

[cybuch]

I know that I'm late to this thread. I have to say that I'm glad that this doesn't seem to apply to my vintage engine. However I've had a rough year, engine wise (stuck valve, still working through the repair) that has ended up costing me (due to my crazy schedule) close to a season of down time. Anyway, during my repair, we used quite a few gaskets in the process. Valve cover, head, exhaust, etc. I wonder if the kit comes with the required gaskets? If not, it would be worth investigating that cost too into the repair.

Agreed! However, we have issues with bad ECUs and stuck injectors, and your stuck valve....ugh!

 

[MattFX4]

Sure am glad mine is covered under warranty until 03/2020. She will be sold before then.

 

[robert843]

I still think a bigger deal is made about this then it really is. There has to be close to 1000 1.8l engines registered on the forum when you consider many boats have two of them. Right now I think I have seen 3-4 1.8l engines on here have the issue which makes it less then half a percent issue. Don't get me wrong for those it's happened to its terrible and I sure hope Yamaha took care of most if not all of them.

 

[Evil Sports]

Perhaps we should see how many are charged vs NA. I can see the stress that a jetski could put on it with air born moves but our boats dont suck air that often. Well at least mine doesn't