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 The previous version was outdated and no longer supported.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

aargh...base gasket- 630

EricV

EricV

Husqvarna
AA Class
Hi Gang. Got a seeping base gasket, at rear of cylinder. Now if you'll recall this engine was dis/re-assembled by a well regarded Husky shop a few years ago to replace a cracked engine casing. That was around 7K ago. I noticed this at the beginning of last season, so it's been going on for about (rough estimate) 3K. At first I thought it was just dust collecting on residual stickiness, but cleaned it and what you see has developed over several thousand miles.

This bums me as it's the start of this season and I don't wanna be without the bike (and no shop I trust for it anywhere near, by far.) I'm not confident enough in my skills to do this well (and haven't the best accommodations/tools to do so.) Bike runs well and has been.

Is it possible to do a "watch and wait" thing- i.e. ride as long as I keep a close eye on it. Do they suddenly blow wide open and throw lots of oil, leading to sudden engine failure?

I'd love to be able to eek one more season out, and then tackle this next off season (around Sept./Oct....about 2K miles out.) Thanks guys- here are the pics:

fullsizeoutput_39b.jpegIMG_3785.JPG
 
I would give it a solid clean and remove all residue. Ride it for a day and then make a call based on your own observations according to observed leaking from that day. personally I would ride it for the season it the blow through remained minimal.
 
Thanks man. That's what I'd decided early today- had a few hours to ride. Cleaned it up (what's in original pics is 2-3K "accumulation of blow-by and dust) and looked after the ride (only about 80 miles) a barely discernible amount, and it was ridden enthusiastically. :) I'll continue to keep an eye on it, and as a first step perhaps re-torque. Not likely to change anything but can't hurt.

Was really wondering if they often eventually spew when they really go out (I.e. If I'm tempting worse issues if it pukes oil.) I don't think it often happens that way, given how often I've seen old seepage in cars and bikes. Here's today's before and after. Sorry they're upside down.

IMG_3786.JPG IMG_3787.JPG
 
Not sure if a catastrophic blow out is likely. Sorry I cant opine on that point.
 
Thanks guys. Yes, I'd have to agree that a full on blow out would be unlikely, given the tight space between the base of the cylinder and the mating surface of the crankcase. I'll keep a close eye on it.
 
Kia-ora said:
Are you sure its the base gasket and not the tensioner gasket?
Click to expand...


Oops- not sure how I overlooked that suggestion- thanks.

Yes, I initially thought that was a possibility but upon close inspection that does not appear to be the case. The staining sure does suggest it as a possibility so right of you to point it out.
 
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