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Showing results 1 to 3 of 3
Search took 0.00 seconds. Search: Posts Made By: G-CPTN

Forum: Bus & Coach Restoration

11th September 2008, 23:58

Replies: 11

Knock Knock

Views: 10,244

Posted By G-CPTN

Why should a piston start to hit a valve? I...

Why should a piston start to hit a valve?
I suppose if it started to stick after the engine had been running.
(The indication seems to be that on startup there is no misfire or knock)

Had a...

Forum: Bus & Coach Restoration

11th September 2008, 15:20

Replies: 11

Knock Knock

Views: 10,244

Posted By G-CPTN

Indicates a fuel (injection) fault IMO. Imagine...

Indicates a fuel (injection) fault IMO.
Imagine taking a plug-lead off a petrol engine (and worse, having a high compression charge that doesn't fire).

Could be a sticking valve I suppose . . .

Forum: Bus & Coach Restoration

11th September 2008, 00:35

Replies: 11

Knock Knock

Views: 10,244

Posted By G-CPTN

Need more information whether the noise is...

Need more information whether the noise is constant or whether it varies with speed and / or load.
Could be piston slap (worn bores).
Does it smoke (oil smoke) after over-run?
A deep-down rumble...

Showing results 1 to 3 of 3

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