| Re: [GMCnet] Power loss Engine rattle [message #230785] |
Fri, 22 November 2013 12:16 |
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hnielsen2
Messages: 1434
Registered: February 2004
Location: Alpine CA
Karma:
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Senior Member |
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Jim
Yes
I agree is will not fix it self.
It hurts now.
In the long run you are better off.
Howard
74 Canyon Lands
All is well with my Lord
> On Nov 22, 2013, at 9:24, Jim Bounds <gmccoop@yahoo.com> wrote:
>
> As much hot air that's been expended on this thread, I figured you could tell something! Look, if you want to try and save the motor, save time and pull the heads, take them and have everything checked. If all is good (I think you will find a tight valve guide or something). Check the pistons and rings then put it back together with SS blockoff plates, a new fiber intake gasket set, Chk timing chain and now build the rest of it up and chances are you will have found the problem, updated the engine with fresh heads and blocked exh. crossover and who knows, I might run OK for a while. Or you could keep staring at it, keep listening to armchair folks and maybe the black hole will shrink on it's own. My guess is it won't.
>
> Good luck, these things have few secrets when you look into them and they sure are not rocket science!
>
> Jim Bounds
> ----------------------
>
>
> ________________________________
> From: Ron Johnson <Ron77@gltcinsurance.com>
> To: "gmclist@temp.gmcnet.org" <gmclist@temp.gmcnet.org>
> Cc: "<gmclist@temp.gmcnet.org>" <gmclist@temp.gmcnet.org>
> Sent: Friday, November 22, 2013 11:32 AM
> Subject: Re: [GMCnet] Power loss Engine rattle
>
>
> A compression test on a cylinder with both valves closed is done with a leakdown tester. Racers do all the time. Takes a special tester.
>
> Ron Johnson
>
>> On Nov 22, 2013, at 2:23 AM, "Rob Mueller" <robmueller@iinet.net.au> wrote:
>>
>> Jim,
>>
>> I may not have read what you noted below correctly but I hate to tell you this but you're off your rocker! ;-)
>>
>> If you don't have the rockers installed how does air get into the cylinder to be compressed?
>>
>> Regards,
>> Rob M.
>> The Pedantic Mechanic
>>
>> -----Original Message-----
>> From: Jim Bounds
>>
>> Pull off the rocker arms and pull out the push rods. With the rockers off, do a compression test on that cylinder. If you have
>> compression chances are the valces are OK. Is it using roller tip rockers or adjustibles? Are the push rods original or
>> aftermarket. Are they adjustible push rods?
>>
>> Jim Bounds
>>
>>
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