The intake or exhaust valves are not sealing properly, again allowing a leak during compression.

进气阀和排气阀密封有问题也会造成压缩时漏气。

youdao

The intake or exhaust valves are not sealing properly, again allowing a leak during compression.

进气阀和排气阀密封有问题也会造成压缩时漏气。

youdao