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Author Topic: Engine noise, terminal?  (Read 78242 times)

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Entwood

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Re: Engine noise, terminal?
« Reply #285 on: 19 March 2010, 10:34:16 »
Or a bent exhaust valve ?? Foreign object damage ??

  :(
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TheBoy

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Re: Engine noise, terminal?
« Reply #286 on: 19 March 2010, 10:34:30 »
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I think the head is coming off soon!
At least it should pop off easily - not that long ago the HGs were changed!!!
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Marks DTM Calib

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Re: Engine noise, terminal?
« Reply #287 on: 19 March 2010, 10:37:09 »
I think the heads will stay where they are!

It cant be a bent valve, the compression is to good.
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TheBoy

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Re: Engine noise, terminal?
« Reply #288 on: 19 March 2010, 10:40:30 »
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I think the heads will stay where they are!

It cant be a bent valve, the compression is to good.
Ooooooohhhhh, I hate it when you know something I don't ;D ;D
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2woody

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Re: Engine noise, terminal?
« Reply #289 on: 19 March 2010, 10:41:23 »
this is definitely happening when going past EVO in a clockwise direction ?
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Shackeng

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Re: Engine noise, terminal?
« Reply #290 on: 19 March 2010, 10:41:43 »
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I think the heads will stay where they are!

It cant be a bent valve, the compression is to good.

This, allied to the stiffness in rotation, does still suggest FOD inside trying to prevent valve opening fully.
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2woody

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Re: Engine noise, terminal?
« Reply #291 on: 19 March 2010, 10:46:25 »
what's the Shack all about in the photo ?
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Kevin Wood

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Re: Engine noise, terminal?
« Reply #292 on: 19 March 2010, 10:46:54 »
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Interesting.....just had a quick look.

The crank becomes harder to turn once the No 1 exhaust comes on cam.....and at no other point during the 2 rotations of the cam.

Found a few bits of sealer etc on the inlet valve (may well be un-related).


Interesting indeed.

The sealant might well have been me. I slapped the cam cover, manifold and plenum back on pretty hastily before it was moved.

Perhaps something in the valve train has siezed, although it's difficult to imagine how it would create enough resistance to the valve opening that it can be felt at the crank, yet allow the valve to close tightly under the force of the spring. :-/

Kevin
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Shackeng

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Re: Engine noise, terminal?
« Reply #293 on: 19 March 2010, 10:49:19 »
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what's the Shack all about in the photo ?

3000 hours as an F/E. :y

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Marks DTM Calib

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Re: Engine noise, terminal?
« Reply #294 on: 19 March 2010, 10:52:06 »
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this is definitely happening when going past EVO in a clockwise direction ?

Yes.

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Marks DTM Calib

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Re: Engine noise, terminal?
« Reply #295 on: 19 March 2010, 10:52:36 »
Kevin, was the cambelt setup all checked?

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Entwood

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Re: Engine noise, terminal?
« Reply #296 on: 19 March 2010, 10:53:12 »
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Quote
what's the Shack all about in the photo ?

3000 hours as an F/E. :y


A REAL trade..  :) (but only 3000 hours!! get some time in son !!)  :)
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Shackeng

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Re: Engine noise, terminal?
« Reply #297 on: 19 March 2010, 10:53:26 »
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Quote
I think the heads will stay where they are!

It cant be a bent valve, the compression is to good.

This, allied to the stiffness in rotation, does still suggest FOD inside trying to prevent valve opening fully.

Although being aware of you guys' professionalism, I do not think this can be the answer. :-/
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Kevin Wood

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Re: Engine noise, terminal?
« Reply #298 on: 19 March 2010, 10:57:05 »
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Kevin, was the cambelt setup all checked?


No. We didn't check the cam belt.

Kevin
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Marks DTM Calib

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Re: Engine noise, terminal?
« Reply #299 on: 19 March 2010, 10:59:52 »
Ok..
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