| [ Total Views: 895 | Total Replies: 19 | Thread Id: 97868 ] |
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 Mr Muppet
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| posted on July 16th, 2012 at 07:13 PM |
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It sounds like a bird is chirping inside my rocker cover.
Hi all, as the titles states there is a chirping noise coming frome around my rocker cover or side of the engine. It sounds like it squeaks on each
turn (stroke) of the engine and it only comes from one side. Wound anyone have any ideas? Oh yeah, it's a type1 1915 .
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Sides
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| posted on July 16th, 2012 at 07:35 PM |
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Hmm... louder above or below the engine ???
If louder from above then I'd say intake manifold leak (check they're tight, boots are good etc.). If you've got twins check that the carb on that
side doesn't wobble at all - sign of a loose or possibly even cracked manifold.
If louder from below it's something a bit more serious... like possibly a rocker issue.
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Mr Muppet
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| posted on July 16th, 2012 at 07:54 PM |
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Thanks Sides, it's really hard to pinpoint the area it's coming from. Say it was the rockers, what could it be?
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shokwave2
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| posted on July 16th, 2012 at 08:22 PM |
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Pushrod scraping the inside of the Pushrod tube? Also check the pulley tin, that makes a chirping sound if it's bent and touching the pulley.
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Mr Muppet
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| posted on July 16th, 2012 at 08:42 PM |
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Pushrod tube is something that was thrown around, it's interesting you said that. Cheers for your input.
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bajachris88
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| posted on July 16th, 2012 at 08:46 PM |
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haha, positive it isn't a little bird stuck down there? 
(ô_!_/ô) (ô_!_/ô)
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Mr Muppet
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| posted on July 16th, 2012 at 08:59 PM |
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Haha, I heard somewhere that a finch will give you an extra 5hp at the wheels.
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68AutoBug
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| posted on July 16th, 2012 at 10:33 PM |
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| Quote: | Originally
posted by Mr Muppet
Hi all, as the titles states there is a chirping noise coming frome around my rocker cover or side of the engine. It sounds like it squeaks on each
turn (stroke) of the engine and it only comes from one side. Wound anyone have any ideas? Oh yeah, it's a type1 1915 .
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Yes, My first thoughts are tinware around the crankshaft pulley
it is very close to the pulley, and if You have an aftermarket degree'd pulley You normally have to grind a bit of the tinware behind the pulley
away...
for clearance..
also the fan can rub on the fan housing too...
of course these are a long way from the tappet cover...
maybe the pushrod tube ??
although they shouldn't be bent and should have lots of oil flowing thru them...
LEE
- [size=4]Helping keep Air Cooled VWs on the road - location: SCONE in the Upper Hunter Valley - Northern NSW 320 kms NNW of SYDNEY--- [/size]
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vwo60
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| posted on July 17th, 2012 at 08:26 AM |
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Could be a loose head, turn the engine over without the ignition connected and have some one listen to that side of the engine. the noise is comming
from that area.
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BRUTUS
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| posted on July 17th, 2012 at 04:53 PM |
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We had a funny higher-pitched chirp from one side of a standard 1600 type 1 engine once. It turned out to be one of the WAVEY washers being broken
across in the middle. This was impossible to find just by looking, as it all stays in place. There is a standard washer, then the wavey one, then a
standard one (between the rocker arm and the spacer or block-thingy). If you grab each rocker arm and wobble it sideways, Left to right... if one
moves, the wavey washer next to it may be broken. You may need the rocker arm to be loose to check this, ie. not pushing the valve down (just turn
the engine over a bit). This assumes you have the standard-type rocker setup.
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 matberry
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| posted on July 17th, 2012 at 05:04 PM |
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If the noise is louder at idle or engine over-run, it'll be an inlet manifold leak or loose head, most likely manifold unless it has an unusually
fitted head gasket.
Matt Berry Motorsports...air cooled advice, repairs and mods Ph 0408 704 662
OFF-ROAD,CIRCUIT,DRAG,STREET,ENDURANCE
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Sides
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| posted on July 17th, 2012 at 06:02 PM |
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Yeah, rocker wise I was thinking around issues with the washers... too much side play is a clack, and I've heard too little give a squeak/squeal.
My money is on it being a manifold leak tho...
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Mr Muppet
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| posted on July 17th, 2012 at 07:19 PM |
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Thanks guys for the useful info, its now a process of elimination. It seems to be most prominent at idle, not so much above 2.5 grand.
The biggest question though, is would I get down to Valla and back?
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matberry
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| posted on July 17th, 2012 at 07:27 PM |
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If it's an inlet manifold leak, you must fix it before driving ANY distance. Running lean will cause engine damage.
Matt Berry Motorsports...air cooled advice, repairs and mods Ph 0408 704 662
OFF-ROAD,CIRCUIT,DRAG,STREET,ENDURANCE
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Smiley
A.k.a.: Daniel Stephens
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| posted on July 17th, 2012 at 07:28 PM |
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| Quote: | Originally
posted by Mr Muppet
The biggest question though, is would I get down to Valla and back?
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That's over 2 weeks away!! You have plenty of time to get it fixed well before then.
Smiley 
If you said I was a Volkswagen man, you'd be right.
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Mr Muppet
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| posted on July 17th, 2012 at 07:40 PM |
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Thats all I need to know, Im working the next two Saturday and Sunday's which means no days off till Valla .
Im going into the shed right now.
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tar76
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| posted on July 17th, 2012 at 07:42 PM |
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| Quote: | Originally
posted by Mr Muppet
Thats all I need to know, Im working the next two Saturday and Sunday's which means no days off till Valla .
Im going into the shed right now.
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go hard mate get that bad boy ready for Valla.
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Mr Muppet
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| posted on July 17th, 2012 at 10:25 PM |
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SUCCESS.
It was the intake manifold(Weber IDF) . It seemed quite ridged to the touch, but it was the rear nut that was
one turn off being tight.
Thanks for the advice, good peoples.
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matberry
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| posted on July 17th, 2012 at 10:27 PM |
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Matt Berry Motorsports...air cooled advice, repairs and mods Ph 0408 704 662
OFF-ROAD,CIRCUIT,DRAG,STREET,ENDURANCE
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Sides
A.k.a.: Dave Sidery
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| posted on July 18th, 2012 at 08:40 PM |
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Nice work - good you got it sorted.
Do Matt and I score a prize for picking it ???
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