Old 19th August 2019, 04:56 PM #31
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Re: When engines go bad

Ffs thats bad .
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Old 19th August 2019, 09:51 PM #32
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Re: When engines go bad

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Originally Posted by PJ View Post
Well and truly fucked!!! Anchor for a boat is all it's good for.
It’s certainly borderline right now.

Cylinder
Piston kit
At best a rod kit
At worst a complete crank
New mains
Complete gasket set
Possibly some valves etc

Going to check the bottom end and oil pumps over next....fatigue on the small end is setting alarm bells off!!! Already into big money without incl labor which would be pretty heavy but lucky for this lad we’re good mates. Just waiting on a flywheel puller now and keep digging away at it
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Old 20th August 2019, 12:18 AM #33
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Re: When engines go bad

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Originally Posted by DavyH View Post




So eh.....yeah

Just a quick look in,head not too bad,possibly a valve or 2 bent and maybe some damage to the seats and guides etc....however,first impressions it looks serviceable!!!

So now the question of how bad is the barrel,and bottom end,rod is bent...wouldn’t of been a million miles off from throwing a leg I’d say but I haven’t totally written this motor off just yet
PM me ,might be able to sort you out with some parts . neighbour has a lc4 , its origional engine trashed its bottom end but top end is good .
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Old 20th August 2019, 07:20 AM #34
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Re: When engines go bad

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Originally Posted by felixonagoldwing View Post
PM me ,might be able to sort you out with some parts . neighbour has a lc4 , its origional engine trashed its bottom end but top end is good .
Pm’d,thanks for that
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Old 20th August 2019, 08:56 AM #35
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Re: When engines go bad

If it is going to be rebuilt, while you are at it check if the bearing for the main drive shaft coming out of the engine has ball or roller bearings. Originally balls were used, but the rollers were a better job, and were a recommended 'upgrade'. Worth doing while everything is apart. (only applies to pre-2003 models)
https://advrider.com/f/threads/lc4-r...-how-to.73558/

Last edited by renniks; 20th August 2019 at 11:47 AM.
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Old 20th August 2019, 09:29 PM #36
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Re: When engines go bad

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Originally Posted by renniks View Post
If it is going to be rebuilt, while you are at it check if the bearing for the main drive shaft coming out of the engine has ball or roller bearings. Originally balls were used, but the rollers were a better job, and were a recommended 'upgrade'. Worth doing while everything is apart. (only applies to pre-2003 models)
https://advrider.com/f/threads/lc4-r...-how-to.73558/
It looks like there’s been a leak around the output shaft seal alright,I’ll check that out . Thanks

Just noticed it’s for pre 2003,this is an 07,sound though

Last edited by DavyH; 20th August 2019 at 09:33 PM.
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Old 20th August 2019, 09:52 PM #37
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Re: When engines go bad

Bit of a hone she'll be grand :)

Any idea how the side of the piston got so badly bent away from the liner Davy ?
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Old 20th August 2019, 10:04 PM #38
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Re: When engines go bad

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Bit of a hone she'll be grand :)

Any idea how the side of the piston got so badly bent away from the liner Davy ?
I’d say it heat seized and the small end started breaking up,now weather its oil pump or cooling related I don’t yet know for sure but I think it might be more down to oil at this point. I’ll have a look at the pumps next and see what condition they’re in
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