| [ Total Views: 822 | Total Replies: 20 | Thread Id: 89100 ] |
|
|
 Stephen62
Casual Dubber
Posts: 20
Threads: 4
Registered: August 13th, 2010
Member Is Offline
Theme: UltimaBB Pro Blue ( Default )
|
| posted on March 6th, 2011 at 02:27 PM |
|
|
Bearings ? gold dust ?
I took the rocker covers off my stock 62 1200 beetle and noticed some "gold dust" inside them both. Probably about as much as you would sprinkle
salt on your chips. I am thinking that this is crank bearings. Is this a problem ? Any thoughts ? when i adjusted the valve gaps the engine runs
quietly enough
|
|
|
 vw54
Super Administrator
Always Waiting 4 Friday
Posts: 16723
Threads: 378
Registered: August 26th, 2002
Member Is Offline
Location: Sunny Sydney
Theme: UltimaBB Pro Blue ( Default )
Mood: Oval resto ongoing
|
| posted on March 6th, 2011 at 03:23 PM |
|
|
what do u mean by gold dust is that the colour of the oil
|
|
|
Stephen62
Casual Dubber
Posts: 20
Threads: 4
Registered: August 13th, 2010
Member Is Offline
Theme: UltimaBB Pro Blue ( Default )
|
| posted on March 6th, 2011 at 03:27 PM |
|
|
Gold dust as particles, smaller than salt. The oil is relatively clear.
|
|
|
ragged
A.k.a.: David
Wolfsburg Wizard
Just ask if you need HELP!
Posts: 478
Threads: 46
Registered: January 25th, 2005
Member Is Offline
Location: Adelaide
Theme: UltimaBB Pro Blue
Mood: Medication seems to be working
|
| posted on March 6th, 2011 at 04:05 PM |
|
|
It's not a loose valve guide moving?
|
|
|
Stephen62
Casual Dubber
Posts: 20
Threads: 4
Registered: August 13th, 2010
Member Is Offline
Theme: UltimaBB Pro Blue ( Default )
|
| posted on March 6th, 2011 at 04:10 PM |
|
|
It was in both rocker covers. How could I test to see if its a loose valve guide ?
|
|
|
vwo60
Veteran Volks Folk
Posts: 2036
Threads: 71
Registered: February 13th, 2007
Member Is Offline
Location: Pomona Qld
Theme: UltimaBB Psyche Blue
Mood: good
|
| posted on March 6th, 2011 at 05:49 PM |
|
|
Could be of the distributor drive gear
|
|
|
 matberry
Super Moderator
Go hard or go home
Posts: 8114
Threads: 134
Registered: March 7th, 2006
Member Is Offline
Location: Cooroy Qld
Theme: UltimaBB Pro Blue
Mood: enjoying waving at all my Kombi buddies from my T3
|
| posted on March 6th, 2011 at 07:30 PM |
|
|
I'd go with valve guide isses...
Matt Berry Motorsports...air cooled advice, repairs and mods Ph 0408 704 662
OFF-ROAD,CIRCUIT,DRAG,STREET,ENDURANCE
 |
|
|
zocstar
Officially Full-On Dubber
Posts: 279
Threads: 21
Registered: May 3rd, 2010
Member Is Offline
Location: Wollongong NSW
Theme: UltimaBB Pro Blue
|
| posted on March 6th, 2011 at 08:43 PM |
|
|
something brass?, dunno much about the internals?
|
|
|
68AutoBug
A.k.a.: Lee Noonan
Aircooled Master
Beetle Restorer - Experience over 138% - YIKES --
Posts: 11654
Threads: 449
Registered: August 31st, 2002
Member Is Offline
Location: SCONE in UPPER HUNTER VALLEY NSW
Theme: UltimaBB Pro Yellow
Mood: Really Mentally Ill - all of the time -
|
| posted on March 6th, 2011 at 09:32 PM |
|
|
| Quote: | Originally
posted by Stephen62
I took the rocker covers off my stock 62 1200 beetle and noticed some "gold dust" inside them both. Probably about as much as you would sprinkle
salt on your chips. I am thinking that this is crank bearings. Is this a problem ? Any thoughts ? when i adjusted the valve gaps the engine runs
quietly enough
|
I don't think engine bearings would wear like that....
and I don't think they are that color??
Valve guides maybe...
the distributor drive gear is brass... or copper looking...
has the timing changed??
distributor shaft loose??
whatever it is.... its badly worn....
best of luck
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]
|
|
|
matberry
Super Moderator
Go hard or go home
Posts: 8114
Threads: 134
Registered: March 7th, 2006
Member Is Offline
Location: Cooroy Qld
Theme: UltimaBB Pro Blue
Mood: enjoying waving at all my Kombi buddies from my T3
|
| posted on March 6th, 2011 at 09:42 PM |
|
|
The only brass in a VW engine are the valve guides and dissy drive. Bearings are alloy of tin and lead, copper and steel can be present but still
wouldn't end up in the rocker cover, but I have seen valve guides getting totaled leaving behind bits of fools gold (joke)...mind you, it wouldn't
be running too good.
Matt Berry Motorsports...air cooled advice, repairs and mods Ph 0408 704 662
OFF-ROAD,CIRCUIT,DRAG,STREET,ENDURANCE
|
|
|
waveman1500
Custom Title Time!
Also rides a Honda
Posts: 1346
Threads: 13
Registered: December 17th, 2009
Member Is Offline
Location: Adelaide
Theme: UltimaBB Pro Blue ( Default )
|
| posted on March 6th, 2011 at 10:23 PM |
|
|
I had a large cylindrical thing come out in my oil once, on the first oil change of my new secondhand engine. It was about 10mm in diameter with a 5mm
hole through the middle, perfectly cylindrical, and about 25mm long with a broken-off edge. There were a whole bunch of other small chunks as well.
I'm not sure what all that stuff was but the engine still runs great! 
|
|
|
66brm
Seriously Crusin Dubber
Posts: 140
Threads: 4
Registered: November 13th, 2009
Member Is Offline
Theme: UltimaBB Pro Blue ( Default )
|
| posted on March 8th, 2011 at 09:54 AM |
|
|
| Quote: | Originally
posted by waveman1500
I had a large cylindrical thing come out in my oil once, on the first oil change of my new secondhand engine. It was about 10mm in diameter with a 5mm
hole through the middle, perfectly cylindrical, and about 25mm long with a broken-off edge. There were a whole bunch of other small chunks as well.
I'm not sure what all that stuff was but the engine still runs great!
|
Sounds like the bottom end of the bakelite fuel pump block
|
|
|
waveman1500
Custom Title Time!
Also rides a Honda
Posts: 1346
Threads: 13
Registered: December 17th, 2009
Member Is Offline
Location: Adelaide
Theme: UltimaBB Pro Blue ( Default )
|
| posted on March 8th, 2011 at 06:32 PM |
|
|
| Quote: | Originally
posted by 66brm
Sounds like the bottom end of the bakelite fuel pump block
|
Yeah, but it was still a cylinder. No breaks in the side. So how did it get off the fuel pump pushrod?!
Ignorance is bliss I reckon. The engine still runs great, so any chunks of debris are better out than in.
|
|
|
66brm
Seriously Crusin Dubber
Posts: 140
Threads: 4
Registered: November 13th, 2009
Member Is Offline
Theme: UltimaBB Pro Blue ( Default )
|
| posted on March 9th, 2011 at 12:55 PM |
|
|
| Quote: | Originally
posted by waveman1500
| Quote: | Originally
posted by 66brm
Sounds like the bottom end of the bakelite fuel pump block
|
Yeah, but it was still a cylinder. No breaks in the side. So how did it get off the fuel pump pushrod?!
Ignorance is bliss I reckon. The engine still runs great, so any chunks of debris are better out than in.
|
Someone probably broke it while removing the fuel pump/push rod, they can get stuck in there and be very brittle
|
|
|
Stephen62
Casual Dubber
Posts: 20
Threads: 4
Registered: August 13th, 2010
Member Is Offline
Theme: UltimaBB Pro Blue ( Default )
|
| posted on March 9th, 2011 at 06:25 PM |
|
|
Thanks for the thoughts people.
I will start by looking at the distributor drive.
Would the valve guides go all at once ? The gold dust is in both rocker covers.
Is there any way this could be caused but sitting for a long time unstarted?
|
|
|
matberry
Super Moderator
Go hard or go home
Posts: 8114
Threads: 134
Registered: March 7th, 2006
Member Is Offline
Location: Cooroy Qld
Theme: UltimaBB Pro Blue
Mood: enjoying waving at all my Kombi buddies from my T3
|
| posted on March 9th, 2011 at 09:15 PM |
|
|
It is very odd that it's on both sides, how is it distributed in the cover, up the top, around one valve in particular or all over???
Matt Berry Motorsports...air cooled advice, repairs and mods Ph 0408 704 662
OFF-ROAD,CIRCUIT,DRAG,STREET,ENDURANCE
|
|
|
Stephen62
Casual Dubber
Posts: 20
Threads: 4
Registered: August 13th, 2010
Member Is Offline
Theme: UltimaBB Pro Blue ( Default )
|
| posted on March 10th, 2011 at 06:07 PM |
|
|
Matt, dont remember exactly, It was pretty even both sides, sitting in the lower 1/2 of the cover. The finest bits were sitting between the gasket
(which came off with the cover) and the cover itself. Do you know how the oil moves & at what speed inside the cover ?
|
|
|
matberry
Super Moderator
Go hard or go home
Posts: 8114
Threads: 134
Registered: March 7th, 2006
Member Is Offline
Location: Cooroy Qld
Theme: UltimaBB Pro Blue
Mood: enjoying waving at all my Kombi buddies from my T3
|
| posted on March 10th, 2011 at 06:55 PM |
|
|
The oil is pumped through the pushrods to lube the rocker shafts and valve train. It ends up splashing out of the rockers and as the revs increace
more and more gathers there before draining back to the sump. Performance engines actually start to pump the sump dry at higher than 5000 rpm as the
rocker covers esp 3/4 side become full of oil, I would suggest that's not the case with your engine, but you get the idea.
Matt Berry Motorsports...air cooled advice, repairs and mods Ph 0408 704 662
OFF-ROAD,CIRCUIT,DRAG,STREET,ENDURANCE
|
|
|
BRUTUS
A.k.a.: et tu, Brute
Officially Full-On Dubber
Posts: 255
Threads: 17
Registered: February 8th, 2006
Member Is Offline
Location: Brutus has retyred
Theme: UltimaBB Pro Grey
Mood: ACE 30 FOR SALE!
|
| posted on March 11th, 2011 at 09:40 PM |
|
|
Could the brass-appearance be due to the small end bush failing? I had exactly the same symptoms once in an engine that suddenly developed a
rattle/knock supposedly due to small end failure, following suspected high-speed detonation problems (due to incorrect s/plugs). Both the rattle and
the brass fines appeared at the same time. (I don't know if the small end bush is made from brass...)
ACE 30 & 40 oils: specifically engineered for your Air Cooled VW
delivered (free del.) throughout Yarra Valley / Ranges, & Gippsland areas. Also ACE 20, 50 & 90.
FOR SALE: ACE 30, 40 etc. Oil formulations & Trade-names.
|
|
|
matberry
Super Moderator
Go hard or go home
Posts: 8114
Threads: 134
Registered: March 7th, 2006
Member Is Offline
Location: Cooroy Qld
Theme: UltimaBB Pro Blue
Mood: enjoying waving at all my Kombi buddies from my T3
|
| posted on March 11th, 2011 at 09:47 PM |
|
|
Woops, forgot about little end bush. Very possible cause.
Matt Berry Motorsports...air cooled advice, repairs and mods Ph 0408 704 662
OFF-ROAD,CIRCUIT,DRAG,STREET,ENDURANCE
|
|
|
BRUTUS
A.k.a.: et tu, Brute
Officially Full-On Dubber
Posts: 255
Threads: 17
Registered: February 8th, 2006
Member Is Offline
Location: Brutus has retyred
Theme: UltimaBB Pro Grey
Mood: ACE 30 FOR SALE!
|
| posted on March 11th, 2011 at 10:08 PM |
|
|
I had an idea they were brass, but wasn't sure, as not a mechanic. That doesn't mean this is definitely Stephen's problem does it? There would
have to be other evidence of little-end knock developing as well, I suppose. Like a knocking sound (der!) under certain load or temp conditions.
(My old engine was obviously 'terminal", but presumably such failure could start in a gradual way...)
ACE 30 & 40 oils: specifically engineered for your Air Cooled VW
delivered (free del.) throughout Yarra Valley / Ranges, & Gippsland areas. Also ACE 20, 50 & 90.
FOR SALE: ACE 30, 40 etc. Oil formulations & Trade-names.
|
|
|
