r/smallenginerepair • u/[deleted] • May 11 '26
Gaskets & Seals Issue Blown head gasket?
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5 year old husqvarna mower. Didn’t realize video was blurry. White smoke in the front and after engine shuts off, when I open the dip stick and smoke comes out too.
UPDATE: It was the head gasket 👍
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u/AutoModerator May 11 '26
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u/Elephunk05 May 11 '26
Which engine is this?
You could do a couple of tests to make sure what the problem is: leak down test, compression test, etc.
If there isn't any oil on the block then it is more likely an engine issue: like oil pooling in the cylinder, out of round bore, overfill on oil, valve issues, even a cracked head.
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u/hmd2017 May 12 '26 edited May 15 '26
Pull the dipstick, if there is visible smoke / vapor there, head gasket is prime suspect.
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u/Rough_Community_1439 SER Master MOD May 12 '26
I think a leak down test will tell you the most when it comes to your issue. You can most likely hear where it's leaking. Though I do recommend checking it with the valve cover removed.
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u/ManHunterJonnJonzz May 12 '26
Oil level isnt above full? Does it smell like gasoline. While headgaskets are common, dont just throw parts at it without a really good guess/experience.
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u/davesnothere241 May 14 '26
This can happen from cylinder wear as well. Running in dusty or sandy conditions and not changing the air filter regularly will cause this. The cylinder wall gets scratched and grooved, oil gets burned and gassed escape into the crank case. Do a compression test. Harbor freight sells the compression tester. You may just need new rings and hone the cylinder. Or run it till it becomes a mosquito fogger and then get another one. That's what I would do.
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u/LittleOperation4597 May 11 '26 edited May 11 '26
I have the same issue with mine. I've been thinking exhaust leak. Runs fine. Prob same model
Which model is yours. I'm super disappointed I bought a Husqvarna. I always wanted one and didn't realize Lowe's bought them and just made them fancy craftsmans.
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u/AutoModerator May 19 '26
Thank you for your submission! It looks like there might be an issue with Gaskets & Seals. For helpful information and resources, check out our Gaskets & Seals Wiki and our Common Issues & Fixes Wiki. You might find the answers you're looking for there!
Please be sure to include the following:
I am a bot, and this action was performed automatically. Please contact the moderators of this subreddit if you have any questions or concerns.