A little engine help here

yamadogyz · Jul 16, 2012

Hey guys, so I ripped down the trail bike to find the timing chain tension-er was made of plastic, therefore melting and trashing my engine. I got all the loose pieces out and need some help getting the rest of the torched pain-in-the-ass out of there. But to do so I have to get behind this flywheel first. I got the main nut off, and the ones connecting it to the sprocket behind it, but I can't get this goddamn thing off :foul:

Can someone help me out here?

part number 3 is what melted off

D8K · Jul 16, 2012

Order a flywheel puller before you damage your fly wheel...

Mojavekid18 · Jul 16, 2012

you need a flywheel puller

yamadogyz · Jul 16, 2012

Dicksack. Fineeeee

josmoloco · Jul 16, 2012

http://www.ebay.com/itm/Motion-Pro-...h-CRF150F-CRF230F-/170631407216#ht_2588wt_168

bobkyle2 · Jul 16, 2012

You better pick up a manual for that bike too.. To help you get it back in time. You can't just throw it back together

James · Jul 16, 2012

Why was this piece melting? Is the engine overheating?

bobkyle2 · Jul 17, 2012

You gonna replace cam chain and inspect gears also?

yamadogyz · Jul 17, 2012

James:
Why was this piece melting? Is the engine overheating?

It's plastic, rubbing up against the timing chain continuously, really bad design. The engine isn't overheating though.

bobkyle2:
You gonna replace cam chain and inspect gears also?

Everything else is in tact and unscathed with the exception of the piston. It's a little crispy from regular use.

530ktm · Jul 17, 2012

Mojavekid18:
you need a flywheel puller

This would be the answer in my opinion.

D8K · Jul 17, 2012

I'm so glad I don't own a 4 poke...

SRAD97750 · Jul 17, 2012

yamadogyz:
It's plastic, rubbing up against the timing chain continuously, really bad design.

Not a bad design, just a consumable item.
That is how ALL cam chains run in a 4T engine. Streetbikes and Dirtbikes alike.

yamadogyz · Jul 17, 2012

SRAD97750:
Not a bad design, just a consumable item.
That is how ALL cam chains run in a 4T engine. Streetbikes and Dirtbikes alike.

Why plastic though :noidea:

14D · Jul 17, 2012

It's made to be cheap cause it's a consumable...

James · Jul 17, 2012

SRAD97750:
Not a bad design, just a consumable item.
That is how ALL cam chains run in a 4T engine. Streetbikes and Dirtbikes alike.

yamadogyz:
It's plastic, rubbing up against the timing chain continuously, really bad design. The engine isn't overheating though.

Was going to say that that's how mine is, but Dan beat me to it.

Which would you rather have wear down, the cam chain (by having a metal slider) or the plastic slider? :noidea:

A little engine help here

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