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08-27-2021, 01:22 PM
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#1 |
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Junior Member
Join Date: Dec 2005
Location: Portland ,OR
Posts: 11
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weak valve spring ?
I think I know but. 305 Chevy, What will a weak or broken spring feel like ? I'm losing rpm at about 6500, the motor sounds like a blurb... have good fuel volume .5 liter per 5 sec. , and psi. 5-7.
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08-27-2021, 02:49 PM
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#2 |
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Member
Join Date: Apr 2005
Location: san antonio tx
Posts: 255
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Re: weak valve spring ?
How high do you rev this 305? Have you pulled the valve covers yet?
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08-27-2021, 04:20 PM
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#3 |
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Junior Member
Join Date: Dec 2005
Location: Portland ,OR
Posts: 11
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Re: weak valve spring ?
At times its been 7200 at the finish but I have been running 1/8 mile so I short shift. But with a 1/4 race coming up I legged it out and it falls off. M/SA. covers off , no broken springs.
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08-28-2021, 07:59 PM
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#4 |
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Member
Join Date: Nov 2014
Posts: 313
Likes: 614
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Re: weak valve spring ?
Really should have something like this
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08-29-2021, 02:56 AM
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#5 |
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VIP Member
Join Date: Jun 2009
Location: Boulder City, Nevada 89005
Posts: 2,545
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Re: weak valve spring ?
Best bet is to test them and remove all doubt.
__________________
John Irving 741 Stock 741 Super Stock |
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