• 4 Stroke Husqvarna Motorcycles Made In Italy - About 1989 to 2014
     TE = 4st Enduro & TC = 4st Cross

  • Hi everyone,

    As you all know, Coffee (Dean) passed away a couple of years ago. I am Dean's ex-wife's husband and happen to have spent my career in tech. Over the years, I occasionally helped Dean with various tech issues.

    When he passed, I worked with his kids to gather the necessary credentials to keep this site running. Since then (and for however long they worked with Coffee), Woodschick and Dirtdame have been maintaining the site and covering the costs. Without their hard work and financial support, CafeHusky would have been lost.

    Over the past couple of weeks, I’ve been working to migrate the site to a free cloud compute instance so that Woodschick and Dirtdame no longer have to fund it. At the same time, I’ve updated the site to a current version of XenForo (the discussion software it runs on). The previous version was outdated and no longer supported.

    Unfortunately, the new software version doesn’t support importing the old site’s styles, so for now, you’ll see the XenForo default style. This may change over time.

    Coffee didn’t document the work he did on the site, so I’ve been digging through the old setup to understand how everything was running. There may still be things I’ve missed. One known issue is that email functionality is not yet working on the new site, but I hope to resolve this over time.

    Thanks for your patience and support!

Checking big end bearing without splitting case?

D

dirtrider0129

Husqvarna
AA Class
My TE250 decided it didn't like oil anymore and decided to start spraying it out into the exhaust (valve seals went bad). So I figured while I have the head off, I could check the health of the big end. I was wondering if there was a way to check the big end bearings without slitting the case? I have the workshop manual (sort of a joke) and didn't see anything about checking them with the two case halves still together. thanks for the help!
 
dirtrider0129 said:
My TE250 decided it didn't like oil anymore and decided to start spraying it out into the exhaust (valve seals went bad). So I figured while I have the head off, I could check the health of the big end. I was wondering if there was a way to check the big end bearings without slitting the case? I have the workshop manual (sort of a joke) and didn't see anything about checking them with the two case halves still together. thanks for the help!
Click to expand...

Well, with the rod in your fingers and your hand resting on the cases. Try to keep the rod perfectly straight up and down. Try to detect any movement in the rod vertically. You should NOT feel any movement. That's how I do it. Gramps
 
I just replaced my big end bearing and it is very hard to detect the slight amount of movement that indicates something is wrong by hand ESP if you do not know what you are looking for as it will only be slight, slight, very slight, hard to detect movement

You can also tap the small end of the rod hard with your finger and it will make an off-tone type sound if bad...

Side-to-side movement of the rod is also very small but should be present...
 
ray_ray said:
I just replaced my big end bearing and it is very hard to detect the slight amount of movement that indicates something is wrong by hand ESP if you do not know what you are looking for as it will only be slight, slight, very slight, hard to detect movement

You can also tap the small end of the rod hard with your finger and it will make an off-tone type sound if bad...

Side-to-side movement of the rod is also very small but should be present...
Click to expand...

That's the way I used to do it too. Hold the rod completely verticle while putting slight upward pressure on it and tap towards the bottom end gently. If you hear any sound what so ever then it warrants further inspection, with a dial indicator guage for verification of wear. Glad you caught her before she completely detonated herself. :thumbsup:
 
buttstock said:
Well, with the rod in your fingers and your hand resting on the cases. Try to keep the rod perfectly straight up and down. Try to detect any movement in the rod vertically. You should NOT feel any movement. That's how I do it. Gramps
Click to expand...
This method won't tell you if the problem is in the rod bigend or the mains (or both) & should be done with a dial indicator. However, if you have out of spec movement, the cases are getting split regardless.
 
Thanks for the reply, Guys!

ray_ray said:
I just replaced my big end bearing and it is very hard to detect the slight amount of movement that indicates something is wrong by hand ESP if you do not know what you are looking for as it will only be slight, slight, very slight, hard to detect movement

You can also tap the small end of the rod hard with your finger and it will make an off-tone type sound if bad...

Side-to-side movement of the rod is also very small but should be present...
Click to expand...

I'll have to give that a try tomorrow. I did measure the lateral movement and came up with .0215" so that's good.
 
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