how do I know if I bent a valve?

1995 MITSUBISHI MONTERO

110,000 MILES • 6 CYL • 4WD • AUTOMATIC

HUMBERTO9251

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i did manually turned the crankshaft pass the hard point, now my question is, how do i know if i bent a valve? I have a 3.0 engine how do i know if i have an interference engine? i did some research on internet and it seems like i do have an interference engine. (the hard point still feels like the first time i turned it over)
please help.

Apr 30, 2008 at 5:30 PM

SQM

CAR REPAIR CONTRIBUTOR
6,383 POSTS

Hello,

On an interference engine if the timing belt breaks during engine operation, it is more than likely that the valves got bent at the least. It could also damage the engine.
Since you have a hard spot when you turn the engine, you could have bent valve(s).
Only way to know for sure is to take apart the cylinder head and take a look inside.

https://www.2carpros.com/articles/how-a-cylinder-head-works

I have attached the cylinder head removal and timing belt replacement instructions for your reference.

Please let me know of any questions.
Thank you.

Images (Click to enlarge)

Sep 18, 2021 at 11:49 AM

Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.