Uploaded August 2018 | Updated September 2026, 18 hours ago
Methods for cleaning and checking the serviceability of an old, dirty valve assembly. This valvetrain overhaul is part of our preparation to swap an EJ25D from a 1999 Subaru Legacy into a 1998 Subaru Forester. The EJ25D is not one of the more common (or well-regarded) engines made by Subaru, but the methods for checking and cleaning components shown in this video are applicable to many if not most other engines.
One test which was not included in the video checks the clearance between the valve stem and it's passage into the combustion chamber, because it's a finicky process that involves really small measurement which didn't record well. In all likelihood this test is not needed anyway, but if your engine shows serious signs of neglect or is known for this kind of abnormal wear, you may want to look into it.
To become a supporter of this channel please visit
patreon.com/powerofyourbrains
Follow us on the social media
facebook.com/Powerofyourbrains
instagram.com/Powerofyourbrainsofficial
twitter.com/POYBoffroad
If you enjoyed this video, go ahead and let us know by liking or sharing with a friend, and subscribe for more build videos, off-road mods, and adventures.
Here are some of our more popular videos:
How to install a center differential locker
youtu.be/6AoEm-CSa74
Utilitarian off-road Forester build overview
youtu.be/LRlWuzUe7uo
Brutal mountain climb at East Lynn
youtu.be/QEnKCJq4sk4
Featuring sounds from The Great by Broke for Free
brokeforfree.com
Methods for cleaning and checking the serviceability of an old, dirty valve assembly. This valvetrain overhaul is part of our preparation to swap an EJ25D from a 1999 Subaru Legacy into a 1998 Subaru Forester. The EJ25D is not one of the more common (or well-regarded) engines made by Subaru, but the methods for checking and cleaning components shown in this video are applicable to many if not most other engines.
One test which was not included in the video checks the clearance between the valve stem and it's passage into the combustion chamber, because it's a finicky process that involves really small measurement which didn't record well. In all likelihood this test is not needed anyway, but if your engine shows serious signs of neglect or is known for this kind of abnormal wear, you may want to look into it.
To become a supporter of this channel please visit
patreon.com/powerofyourbrains
Follow us on the social media
facebook.com/Powerofyourbrains
instagram.com/Powerofyourbrainsofficial
twitter.com/POYBoffroad
If you enjoyed this video, go ahead and let us know by liking or sharing with a friend, and subscribe for more build videos, off-road mods, and adventures.
Here are some of our more popular videos:
How to install a center differential locker
youtu.be/6AoEm-CSa74
Utilitarian off-road Forester build overview
youtu.be/LRlWuzUe7uo
Brutal mountain climb at East Lynn
youtu.be/QEnKCJq4sk4
Featuring sounds from The Great by Broke for Free
brokeforfree.com
