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oxfordethan
Samba Member
Joined: August 18, 2009
Posts: 238
Location: Oxford, MS
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 Posted: Tue Aug 24, 2010 4:18 pm Post subject: Clicking sound coming from right side of engine. |
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| I've noticed a new clicking sound on the right side of the engine (#1 and #2 cylinders). Hard to describe. Seems to sound even more like a sewing machine than usual...if that makes sense. I adjusted the valves about a month and a half ago. Any guesses? 1600 Dual Port. |
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aircooled74
Samba Member
Joined: May 15, 2010
Posts: 471
Location: Yuba City, Ca
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| Posted: Tue Aug 24, 2010 4:24 pm Post subject: |
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Sounds like you have that prototype engine Vw put out in the 70's 
Check for any cracks or hole or leaks in your valve cover. HAd that happen to me once before. |
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oxfordethan
Samba Member
Joined: August 18, 2009
Posts: 238
Location: Oxford, MS
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| Posted: Tue Aug 24, 2010 4:29 pm Post subject: |
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Valve cover looks good.  |
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aircooled74
Samba Member
Joined: May 15, 2010
Posts: 471
Location: Yuba City, Ca
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| Posted: Tue Aug 24, 2010 4:35 pm Post subject: |
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| Hmmm, thats all i got. Good Luck! |
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Paul Windisch
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Joined: September 02, 2009
Posts: 2546
Location: Clinton Township, Michigan
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| Posted: Tue Aug 24, 2010 4:39 pm Post subject: |
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Check the valve adjustment again, just in case. Also check for excessive side to side movement of the rocker arms on the rocker shaft.
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oxfordethan
Samba Member
Joined: August 18, 2009
Posts: 238
Location: Oxford, MS
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| Posted: Tue Aug 24, 2010 4:46 pm Post subject: |
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| ^ Yeah, I think that's what I'm gonna do. It just started about two days ago. I'm wondering if i didn't tighten something back up sufficiently. You can hear it really well while motor is cold (just started). seems to go away, some, as it warms up...not completely. |
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Joey
Samba Member
Joined: August 12, 2005
Posts: 5376
Location: Nova Scotia - Canada
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| Posted: Tue Aug 24, 2010 7:33 pm Post subject: Re: Clicking sound coming from right side of engine. |
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| oxfordethan wrote: |
| I adjusted the valves about a month and a half ago. |
It's not a matter of time, but a matter of miles. They should be adjusted every six thousand miles.... or sooner.
I once had the top part of the valve cover gasket slip down leaving an opening which made the valves sound louder.
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‘60 Kombi - '74 Bus - '79 Panel - '65 Beetle |
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5m4ug
Samba Member
Joined: August 30, 2008
Posts: 76
Location: Chicago
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| Posted: Tue Aug 24, 2010 9:25 pm Post subject: |
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| heard something similar and yes it was valves , just adjusted them too did a recheck after running it a few times and yes they were mis adjusted took another time of running it and readjusting until the setting held , weather its im not tightening them down enough or its heat cycling or the parts are worn. |
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oxfordethan
Samba Member
Joined: August 18, 2009
Posts: 238
Location: Oxford, MS
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| Posted: Wed Aug 25, 2010 6:26 am Post subject: |
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| 5m4ug wrote: |
| weather its im not tightening them down enough or its heat cycling or the parts are worn. |
I drive it about to work about 3 days / week so I don't think it's the amount of miles but it has been friggin' HOT down here! Gonna check it all this weekend. Thanks for the info. I'll update y'all on my findings. |
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candymustang65
Banned
Joined: January 11, 2010
Posts: 1674
Location: APPLE VALLEY
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| Posted: Wed Aug 25, 2010 8:26 am Post subject: |
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Most common here is brokin wavvy washer on the rocker shaft or look inside Valve spring for a raised up Valve guide .
Look for Rocker contact spots on top of Valve spring's and keeper's also .
Badd Valve geometry is the usual culprit for rocker contacting the Spring / Keepers / or breaking a wavvy washer .
Feel the valve cover while engine is running and pin point exactly wich valve it is that's tacking .
.006 on Aluminum push rod motor's and 0 Lash on Chromoly Push rod motor's .
Post again and I will describe proper Valve geometry 101 and 102 .
Post again if you find brokin wavvy washer on the Rocker arm shaft .
Sean |
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oxfordethan
Samba Member
Joined: August 18, 2009
Posts: 238
Location: Oxford, MS
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| Posted: Wed Aug 25, 2010 8:31 am Post subject: |
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| ^ yes...please on the geometry. |
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jlex
Samba Member
Joined: January 23, 2009
Posts: 2902
Location: NW Pennsylvania
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| Posted: Wed Aug 25, 2010 8:45 am Post subject: |
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I had a bit of a tick on one of my cylinders but I was in denial... after all, if you've just checked the valve clearance, it can't be valve clearance, right? WRONG.
Found out it was a worn adjustment screw...
Although it would read correct clearance, the screw was worn and dished out a wee bit so the true clearance was greater that what I was measuring.
When measuring, I was getting a clearance reading from the tip of the worn screw to the top of the pushrod. The pushrod was actually riding in the "valley" of the worn out adjustment screw. When adjusted for the high part, the actual clearance was therefore too great, causing the ticking.
Screw your adjustment screws and look at the tips. They should actually be slightly concave. Replace as necessary.
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'70 std. "Elsie"
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