火箭三R中气缸压缩为零。有人知道原因吗？

[JAPANユーザー]

Please don't leave use hanging, let us know what you found.

If the problem was fixed by adjusting the shims there is something you need to watch out for. Value gaps generally only get smaller for two reasons (there are other reasons but they are outliers generally speaking), and they are both concerning reasons. You could have a value that is starting to stretch, or you could have excessive wear on the value or valve seat mating surfaces. Monitor the valve clearance for a while, if it continues to get smaller I would start more serious investigation. If you catch a stretching valve or damaged valve/seat you can replace the valve/seat fairly cheaply. If the valve breaks it will cause what we call a catastrophic engine failure, much better and cheaper to replace the valve early.

Please don't get scared by this, it's only advice to keep an eye on that valve gap. If no significant change is occurring with the gap then you don't need to do anything, you most likely just had normal wear.

OK, thanks for your suggestion, I will keep watching.

 

[TURBO200R4]

i bet this thread reaches 100 posts before the problem is solved.

i was wrong
now i am thinking 155 posts

 

[Journeyman]

OK, thanks for your suggestion, I will keep watching.

We're wondering what was causing the valve to be that tight and what was your fix- was it just that it needed a smaller shim?

 

[Journeyman]

i was wrong
now i am thinking 155 posts

I'll see your 155 and raise you 20

 

[JAPANユーザー]

We're wondering what was causing the valve to be that tight and what was your fix- was it just that it needed a smaller shim?

I don't know why there was a 350 gasket on the valve that was leaking, so I replaced it with a 260 gasket.

 

[JAPANユーザー]

I'll see your 155 and raise you 20

What are you talking about?

 

[Journeyman]

What are you talking about?

We’re being witty. Having fun- not at your expense. It’s a poker (card game) reference about how many posts this thread will go. No hurry to end until we know you’ve fully solved the problem and while you keep making tools by hand (impressive).

 

[Journeyman]

I don't know why there was a 350 gasket on the valve that was leaking, so I replaced it with a 260 gasket.

Shim-