 Funny noise when decelerating after high revs |
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| ChrisReale |
 Mar 23 2003, 07:17 PM
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#1
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Sleazy  Group: Members Posts: 2,665 Joined: 20-January 03 From: San Francisco Member No.: 176  |
I hear a noise (kind of a rattle) when I bring the revs up to around 5000 and then immediatly let off the throttle completely. Sounds like its coming from the decel. valve, is it doing what its supposed to?
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Replies(1 - 7)
| Drums66 |
Mar 24 2003, 10:26 AM
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#2
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914 Rudiments Group: Members Posts: 5,321 Joined: 15-January 03 From: Coronado,Cali Member No.: 151 Region Association: Southwest Region |
could be pinging, double check timing, mixture and so forth? (IMG:style_emoticons/default/cool_shades.gif)
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| Bleyseng |
Mar 24 2003, 10:41 AM
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#3
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Aircooled Baby! Group: Members Posts: 13,034 Joined: 27-December 02 From: Seattle, Washington (for now) Member No.: 24 Region Association: Pacific Northwest |
Could be a lose engine tin piece, those damn cheese head screws work loose and the tin rattles. Check 'em all to make sure they're tight.
When can we getogether so I can test that 037 specs? Geoff |
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| ChrisReale |
Mar 24 2003, 05:12 PM
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#4
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Sleazy Group: Members Posts: 2,665 Joined: 20-January 03 From: San Francisco Member No.: 176 |
QUOTE(Bleyseng @ Mar 24 2003, 08:41 AM) Could be a lose engine tin piece, those damn cheese head screws work loose and the tin rattles. Check 'em all to make sure they're tight. When can we getogether so I can test that 037 specs? Geoff How about Thursday? Geoff, do you have a timing light? Id like to check my timing... |
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| Bleyseng |
Mar 24 2003, 06:04 PM
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#5
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Aircooled Baby! Group: Members Posts: 13,034 Joined: 27-December 02 From: Seattle, Washington (for now) Member No.: 24 Region Association: Pacific Northwest |
Thursday is fine, 4-5PM?
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| ChrisReale |
Mar 24 2003, 11:34 PM
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#6
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Sleazy Group: Members Posts: 2,665 Joined: 20-January 03 From: San Francisco Member No.: 176 |
Sure, Ill call you...I have two different 037's. One is in my car and one is an extra I got in my mad quest for proper FI parts
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| Dave_Darling |
Mar 25 2003, 12:12 PM
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#7
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914 Idiot Group: Members Posts: 14,986 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California 
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If either of your 037s is NOS (shiney new, in the box, riveted together and the adjustment screws not messed with), would you consider sending it to Brad Anders so he could take readings off of it? That's one of the ones that he hasn't gotten reliable measurements from.
For his website, see http://members.rennlist.com/pbanders . --DD |
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| Bleyseng |
Mar 25 2003, 02:59 PM
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#8
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Aircooled Baby! Group: Members Posts: 13,034 Joined: 27-December 02 From: Seattle, Washington (for now) Member No.: 24 Region Association: Pacific Northwest |
That's why I am doing it DD, Brad will just have to adjust for high attitude. I have a Wavetek and vacuum gauge so we can get the baseline on a nos 037.
Geoff |
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