Cracked engine head while torquing oil pressure sensor
Overtightening or stressing the threads while replacing an oil pressure sensor can crack the engine cylinder head, causing persistent oil leaks. While some drivers resort to temporary fixes like epoxy to seal the area, a cracked head ultimately threatens the structural integrity of the engine block and requires a permanent repair or replacement.
What people tried
Every workaround mentioned in the threads below. We haven’t tested any of them — and nobody here is claiming they worked.
Found another way around this?
Share your steps and trade-offs so fellow engineers don't have to reinvent the wheel. No account required.
- 1Using JB Weld to secure and seal the leaking sensor in placeDid this help you?
- 2cutting the damaged part of the hose and reconnecting it if it is long enough, or buying a new hoseDid this help you?
In their words
Unedited, grouped by where they were said, most upvoted first within each place, each linked to the thread it came from.
“discovered this crack I have no idea what it’s called. Any tips on how to replace it and what it’s does. Also car has been hitting a brick wall around 3000-4000rpm.”source ↗
“I changed the sensor and when I torqued the new one to specs, it was still leaking so I took it out and noticed the crack in the head.”source ↗
“i had a similar crack on an old civic and ended up jb welding the sensor in place, swore i'd fix it proper when i had the money but that thing held for four years til we sold it”source ↗
Where this came up
People with this problem also raised
- 4How to get broken ignition coil pieces out of the spark plug tube
- 4How to know if a missing engine nut or bolt is important
- 5Engine stalling after replacing mass air flow sensor
- 7Engine still squeaking after replacing water pump and tensioner
- 3What extra parts do I need to replace during an engine teardown?
- 5How to find a replacement engine bolt without measuring another one