• 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 The previous version was outdated and no longer supported.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!

  • 2 Stroke Husqvarna Motorcycles Made In Austria - About 2014 & Newer
     TE = 2st Enduro & TC = 2st Cross

TE/TC Leakdown pressure test - what should I see?

BSBen

BSBen

Husqvarna
AA Class
Hi all - I recently pulled the motor on my '15 TE300 to do the rings (it's at 100 hours and compression test shows 130psi). I thought I'd make a leadown tester while I was at it, so I got a freeze plug for the exhaust port and put together a PVC fitting with a low pressure gauge and a schrader valve that I can pump it up with.

I tested the PVC setup for leaks and there are none. I also put soapy water around the exhaust port and see no bubbles, so the freeze plug is doing its job.

When I put 6psi into the intake port, I see that I'm losing pressure at about 1psi every 20 seconds. That doesn't seem like a lot, but it's my first rodeo.

Any idea what I should be seeing on this particular motor?
 
Quick update: I found that the air is leaking out of the power valve. I took the PV cover off, disconnected the connecting rod and pumped up the cylinder. I can hear light hissing/burbling from the PV. When I actuate it by hand, I can sometimes find positions where it stops leaking entirely (hissing stops and pressure gauge stops dropping). But then I'll move it again and the hissing resumes and I lose 1psi every 20-30 seconds.

Is this normal? I'd like to not have to pull the PV assembly apart, but I certainly will if I should.
 
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