Found this plastic in my oil pan. Any ideas?
- Thread starter adammdennis11
- Start date
I agree maybe the tensioner guides.
What kind of lawn mower engine do you have?
Better order a timing set…might as well do a Coyote swap while you are in there.
I’d say the guides might be taking a poop. Time for cams!
I already have Crower stage 3 blower cams in it.
I havent seen the pieces personally, The shop sent the pics.
No 13/14 windage tray, the motor was built in 2006.
Black guides do exist or at least did for a short time.
From what I've seen on 2 4.6s is the drivers side straight guide breaks if you don't have ratcheting tensioners.
The later design operates with oil pressure only and under certain throttle conditions allows the chain to basically jump off the gear and beat up the straight guide.
If you've ever seen a ship drop an anchor you'll know what I am talking about.
Op make sure the shop installs not only metal backed guides but also ratcheting tensionsers. You'll want to have them modified too.
You basically grind off a few teeth on the mechanism so they can only extend and lock to a certain point. You're preventing them from adding to much mechanical tension and allowing the tensioner to operate on oil pressure only after a point.
Google it, you'll see what I mean.
Didn't they also make spacers to go with the metal tensioners that kept them from being able to retract too far? Should the ratchet mechanism fail.
I don't know why because that's the purpose of the ratcheting mechanism. As it extends the mechanism won't allow it to compress.
Grading a few teeth off keeps it from getting to tight and prematurely wearing out the guides.
It's probably more for the racing guys that use 2 steps.
2 step and timing chain tensioners???
I have read in a few places that if you use a 2 step without modifying the timing chain tensioners it can cause the timing chains to over tighten and cause problems. Is this really an issue? Or is this just another "so and so said to do this because of this" with no real evidence or data to back...
www.svtperformance.com
That makes sense. Been a long time since I've messed with tensioners.
Grinding the teeth off the ratcheting mechanism keep them from extending to far and the spacer keeps them from being excessively compressed.
All of the timing chain apparatus looked good. Maybe leftover from the last build?
Could they be gasket pieces that have gotten hard over the years? Not that there are many real gaskets on these engines.
I'd be concerned about more of that plastic stuck to the screen on your oil pickup tube, hindering flow.
Edit: You probably dropped the pan already, since it looks like those pieces wouldn't make it through the drain hole. But just double check the pickup tube screen. I had plastic chunks stuck in mine.
Edit: You probably dropped the pan already, since it looks like those pieces wouldn't make it through the drain hole. But just double check the pickup tube screen. I had plastic chunks stuck in mine.
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