I finally took both heads off and sent to Richard Sedoris. Below is some of
his analysis. I should have them next week.
Dean
...
The heads look good. I glass beaded the ports and chambers and found no
cracks.
On the head that had the old valves in it I saw the wear on the keeper
grooves.
it any other way.
From: vintagvw@googlegroups.com [mailto:vintagvw@googlegroups.com] On Behalf
Of Dean Johnson
Sent: Sunday, April 21, 2013 2:33 PM
To: vintagvw@googlegroups.com
Subject: Re: [vintagvw] Valve spring retainer keepers. gone missing?
No, it wasn't a sudden stoppage. The engine
http://deangj.tumblr.com/post/48545655072/i-took-the-springs-off-of-a-couple-more-valves-and
I have the head back and took a spring off another intake and an exhaust
valve. Both have some wear in the grooves. They aren't as bad as the failed
valve but neither will fit through their guides and
Ugh. I'd check the valve grooves on the other head now. I'd talk to the
engine rebuilder with evidence in hand and see what resolution you might
come to.
Was the tranny fail a sudden stoppage event? That stress could be another
explanation.
I'd concur with listees on having heads quoted/done by
To clarify, my question on the tranny is whether it seized in 4th gear
failure, though you said 2nd gear did still work.
On Apr 21, 2013 12:56 PM, John Sroka john.at...@gmail.com wrote:
Ugh. I'd check the valve grooves on the other head now. I'd talk to the
engine rebuilder with evidence in
No, it wasn't a sudden stoppage. The engine continued to run but no power
to the wheels. had to down shift to get it off the roadway.
On Sun, Apr 21, 2013 at 4:01 PM, John Sroka john.at...@gmail.com wrote:
To clarify, my question on the tranny is whether it seized in 4th gear
failure, though
http://deangj.tumblr.com/post/48465403682/i-had-to-grind-of-the-end-of-the-intake-valve-to
I talked to my local VW guy and the VW mechanic/teacher and they both
advise getting a new 40mm intake valve and lapping it in. They don't see
the need for a machinist since the valve guide is in good
] On Behalf
Of Dean Johnson
Sent: Saturday, April 20, 2013 1:49 PM
To: vintagvw@googlegroups.com
Subject: Re: [vintagvw] Valve spring retainer keepers. gone missing?
http://deangj.tumblr.com/post/48465403682/i-had-to-grind-of-the-end-of-the-i
ntake-valve-to
I talked to my local VW guy and the VW
] *On
Behalf Of *Dean Johnson
*Sent:* Wednesday, April 17, 2013 1:21 PM
*To:* vintagvw@googlegroups.com
*Subject:* Re: [vintagvw] Valve spring retainer keepers. gone missing?***
*
** **
Dan,
The spring on the bad valve is not compressed as much because the valve
is stripped and the keeper
I took my head to a local VW guy (not a machinist), he checked out the
head. The valve guides are good and all the other valves are good too.
The bad valve was stripped of its grooves for some reason. I'm just going
to replace the one valve. While I hate to ask for advice and not take it,
the
Dean,
Do you mean stripped of the keeper grooves? I would want to know why this
happened:
(1) was the valve material bad
(2) Is the spring different than others
(3) where the keepers improperly installed
(4) as is what does the valve train geometry look like
If you are going to replace the
Johnson
Sent: Wednesday, April 17, 2013 9:22 AM
To: vintagvw@googlegroups.com
Subject: Re: [vintagvw] Valve spring retainer keepers. gone missing?
I took my head to a local VW guy (not a machinist), he checked out the head.
The valve guides are good and all the other valves are good too
[mailto:vintagvw@googlegroups.com] On Behalf
Of Dean Johnson
Sent: Wednesday, April 17, 2013 9:22 AM
To: vintagvw@googlegroups.com
Subject: Re: [vintagvw] Valve spring retainer keepers. gone missing?
I took my head to a local VW guy (not a machinist), he checked out the head.
The valve guides are good
I also want to know why. I'll report what I can after I get the valve out.
The keeper grooves are gone. I don't know how the keepers could be
installed any differently. They look in good shape but I really haven't
looked closely for damage. When it was still together there wasn't anything
odd,
There is a clue in what you said, if there where swivel feet, than it is
really important that the push rods are cut to the appropriate length to
insure that there is no binding, in addition to installing
the appropriate shims.
Also what does this mean: The spring wasn't as compressed as the
Dan,
The spring on the bad valve is not compressed as much because the valve is
stripped and the keeper is closer to the end of the valve allowing it to
expand more than the others. I'll take another spring off and make sure
they are the same height, but I suspect they are when relaxed.
Bill,
If
spring retainer keepers. gone missing?
** **
Dan,
The spring on the bad valve is not compressed as much because the valve is
stripped and the keeper is closer to the end of the valve allowing it to
expand more than the others. I'll take another spring off and make sure
they are the same
I finally got the rusted nuts off the heat exchangers so I have the
offending head off. I resorted to a cold chisel and pounded them off. Only
one was on so bad it split before turning.
Now, I need to decide how far to go with this.
1. buy an intake valve and keepers and replace just the bad one.
Option 3
On Apr 15, 2013, at 10:27 AM, Dean Johnson dean.g.johns...@gmail.com wrote:
I finally got the rusted nuts off the heat exchangers so I have the offending
head off. I resorted to a cold chisel and pounded them off. Only one was on
so bad it split before turning.
Now, I need
The point contact of the ball might have aggravated a soft valve stem.
Take a close look at the others - might be a lot problem.
Chuck Kuecker
On 3/31/2013 10:16 AM, Dean Johnson wrote:
Yes, a lucky catch. I still had plenty of thread on the adjusters and
didn't notice that valve being
Duh. You did say flat...
Dyslexia...
Chuck Kuecker
On 3/31/2013 10:16 AM, Dean Johnson wrote:
Yes, a lucky catch. I still had plenty of thread on the adjusters and
didn't notice that valve being excessively loose the last time I
adjusted the valves. But perhaps I didn't adjust them as often
It's not really a ball, the adjuster 'balls' have a flat spot on them that
contacts the stem, the contact area looks to be about the same size as the
diameter of the stem. Its a flat surface contacting a flat surface. There
is no damage to either of these two contact areas. The damage is further
?
*From:*vintagvw@googlegroups.com [mailto:vintagvw@googlegroups.com]
*On Behalf Of *Dean Johnson
*Sent:* Saturday, March 30, 2013 4:56 PM
*To:* vintagvw@googlegroups.com
*Subject:* Re: [vintagvw] Valve spring retainer keepers. gone missing?
I have ball foot swivel adjuster and there doesn't appear
Yes, a lucky catch. I still had plenty of thread on the adjusters and
didn't notice that valve being excessively loose the last time I adjusted
the valves. But perhaps I didn't adjust them as often as I should have.
Still, I don't think I had to turn it in any more than the others the last
time I
Dean,
Looks pretty interesting. I think your tranny failure saved you from a
dropped valve.
It will be interesting to see which part failed.
The valve stem, the small keepers or the large retainer.
Cheers, dave
On Fri, 29 Mar 2013, Dean Johnson wrote:
I put two pics on my extremely
Interesting, does the adjuster screw contact area also show damage? Here is
a link with similar photos and information.
http://www.thesamba.com/vw/forum/viewtopic.php?t=488433
On Mar 29, 2013 3:03 PM, Dean Johnson dean.g.johns...@gmail.com wrote:
I put two pics on my extremely inactive blog. It
I have ball foot swivel adjuster and there doesn't appear to be any
difference from that valve to its neighbors. The contact area at the end of
the valve stem also appears undamaged. It looks like a ring of material is
missing from the end just shy of the end.
When I applied the compressed air to
: [vintagvw] Valve spring retainer keepers. gone missing?
I have ball foot swivel adjuster and there doesn't appear to be any
difference from that valve to its neighbors. The contact area at the end of
the valve stem also appears undamaged. It looks like a ring of material is
missing from the end
@googlegroups.com
[mailto:vintagvw@googlegroups.com
mailto:vintagvw@googlegroups.com] *On Behalf Of *Dean Johnson
*Sent:* Thursday, March 28, 2013 3:24 PM
*To:* vintagvw@googlegroups.com mailto:vintagvw@googlegroups.com
*Subject:* Re: [vintagvw] Valve spring retainer keepers. gone
/viewtopic.php?t=466412
Can’t wait to hear the outcome of this.
From: vintagvw@googlegroups.com [mailto:vintagvw@googlegroups.com] On
Behalf Of Dean Johnson
Sent: Thursday, March 28, 2013 3:24 PM
To: vintagvw@googlegroups.com
Subject: Re: [vintagvw] Valve spring retainer keepers
[mailto:vintagvw@googlegroups.com] On Behalf
Of Dean Johnson
Sent: Thursday, March 28, 2013 4:37 PM
To: vintagvw@googlegroups.com
Subject: RE: [vintagvw] Valve spring retainer keepers. gone missing?
Also, where would I be likely to find a valve spring compressor tool to use
with heads
I put two pics on my extremely inactive blog. It looks like the very end of
the valve stem has failed. The keepers are in place but the valve can move
laterally between them. Not sure if this is due to stretching of wear, but
I'm thinking I'll need to pull the engine and then the head(s).
Here is
Can't raise the web page, but it sure sounds like pulling the engine
apart is the smart thing to do.
Good luck!
Chuck Kuecker
On 3/29/2013 5:03 PM, Dean Johnson wrote:
I put two pics on my extremely inactive blog. It looks like the very
end of the valve stem has failed. The keepers are in
I've gone to the trouble of replacing my transaxel after having the bug off
the road for four years. I was commuting daily for about a year before the
tranny failed. (70 mi round trip)
So imagine my surprise to discover when adjusting the valves that one of my
valve stems is below the valve spring
the outcome of this.
From: vintagvw@googlegroups.com [mailto:vintagvw@googlegroups.com] On Behalf
Of Dean Johnson
Sent: Thursday, March 28, 2013 3:24 PM
To: vintagvw@googlegroups.com
Subject: Re: [vintagvw] Valve spring retainer keepers. gone missing?
Chuck,
Then engine wasn't making any rattling
@googlegroups.com [mailto:vintagvw@googlegroups.com] *On
Behalf Of *Dean Johnson
*Sent:* Thursday, March 28, 2013 3:24 PM
*To:* vintagvw@googlegroups.com
*Subject:* Re: [vintagvw] Valve spring retainer keepers. gone missing?
** **
Chuck,
Then engine wasn't making any rattling before I
Dean,
I am still a little confused...bear with me.
From your description it sounds like the valve must still be
retained...if it wasn't, the large round part that the retainers hold
down against the presure of the spring and the spring would be laying on
the bottom of the valve cover or
The valve will try to push back into the cylinder, if you push down on
the spring to reinstall the valve keepers with a special valve
compressor for use when the head is still installed. Some folks use an
air compressor applying pressure thru a special air hose adapter through
the sparkplug
: Thursday, March 28, 2013 4:37 PM
To: vintagvw@googlegroups.com
Subject: RE: [vintagvw] Valve spring retainer keepers. gone missing?
Also, where would I be likely to find a valve spring compressor tool to use
with heads on engine, engine in car. I can find pictures but none to buy,
borrow, or steal
.
This is really interesting.Can you upload a few snapshots?
*From:*vintagvw@googlegroups.com [mailto:vintagvw@googlegroups.com]
*On Behalf Of *Dean Johnson
*Sent:* Thursday, March 28, 2013 4:37 PM
*To:* vintagvw@googlegroups.com
*Subject:* RE: [vintagvw] Valve spring retainer keepers. gone missing?
Also
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