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Adjustable push rod tubes.

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alien8 Wolfsburg Wizard

521 posts · joined Sep 2008 ·

#703996
I noticed that I have a couple of bent push rod tubes, one of which leaks a little. Does anyone have an opinion on the spring loaded tubes? or should I pull the heads and replace with stock tubes?

vw54 Administrator Always Waiting 4 Friday

16,723 posts · joined Aug 2002 ·

#704007
they work well to fix a leaking tube easy to fit

but dont fit all 8 of them if that the case pull the engine and fix it properly cause it will be leaking else where
I read it on FACEBOOK so it must be true


http://forums.aussieveedubbers.com/viewtopic.php?tid=91278&page=1#pid848630


http://forums.aussieveedubbers.com/viewtopic.php?tid=63561&page=1#pid624099


http://forums.aussieveedubbers.com/viewtopic.php?tid=4832&page=1#pid452603


http://forums.aussieveedubbers.com/viewtopic.php?tid=60650&page=1#pid574409

Craig Torrens 6 times Australian, 7 times State Hillclimb Class Champion

8,040 posts · joined Jan 2003 ·

#704048
the aluminium SCAT ones work very well........... I have three motors with them and non leak.


fish26 Fahrvergnugen

903 posts · joined Jul 2007 ·

#704309
the aluminium SCAT ones work very well........... I have three motors with them and non leak.
X 2 never had a problem.
bitten by the bug..........several times

matberry Moderator Go hard or go home

8,114 posts · joined Mar 2006 ·

#704340
fish26 wrote:
the aluminium SCAT ones work very well........... I have three motors with them and non leak.
X 2 never had a problem.
x3 Scat Gold or the Jay Cee, sorry Dave , but I'd say replace as many as you want with these.
Matt Berry Motorsports...air cooled advice, repairs and mods Ph 0408 704 662
OFF-ROAD,CIRCUIT,DRAG,STREET,ENDURANCE

alien8 Wolfsburg Wizard

521 posts · joined Sep 2008 ·

#704346
Cool, so the scat tubes seem to be pretty good. I was thinking of replacing the lot at the same time. It would be a lot easier if I didn't have to pull the heads.Thanks all.

vw54 Administrator Always Waiting 4 Friday

16,723 posts · joined Aug 2002 ·

#704352
if all the tubes are leaking then i bet theres more leaks else where on the engine
I read it on FACEBOOK so it must be true


http://forums.aussieveedubbers.com/viewtopic.php?tid=91278&page=1#pid848630


http://forums.aussieveedubbers.com/viewtopic.php?tid=63561&page=1#pid624099


http://forums.aussieveedubbers.com/viewtopic.php?tid=4832&page=1#pid452603


http://forums.aussieveedubbers.com/viewtopic.php?tid=60650&page=1#pid574409

alien8 Wolfsburg Wizard

521 posts · joined Sep 2008 ·

#704398
vw54 wrote:if all the tubes are leaking then i bet theres more leaks else where on the engine
The engine got rebuilt 6 months ago and he put the old tubes back on. Its been sitting unused for three of those months. A couple of the tubes were bent and slightly leak around the seals. Just thinking about replacing them all at once.

colonel mustard Son of Jim - Creator of Good

2,829 posts · joined Feb 2009 ·

#704402
why would you put old tubes back on... its not like they cost much.....

matberry Moderator Go hard or go home

8,114 posts · joined Mar 2006 ·

#821760
George at Classic has the Scat at a very good price
or Rod Penrose may have either
Matt Berry Motorsports...air cooled advice, repairs and mods Ph 0408 704 662
OFF-ROAD,CIRCUIT,DRAG,STREET,ENDURANCE

68AutoBug Beetle Restorer - Experience over 138\% - YIKES --

11,654 posts · joined Aug 2002 ·

#821767
alien8 wrote:I noticed that I have a couple of bent push rod tubes, one of which leaks a little. Does anyone have an opinion on the spring loaded tubes? or should I pull the heads and replace with stock tubes?

the adjustable tubes are for repair purposes only...
the original thin VW push rod tubes are made so they can expand and contract and the air blowing over them helps cool the oil..

I always buy new tubes....
and paint them so they don't rust...
the tube seals need to have permatex or similar gasket cement on both sides of the seals...
if the seals crack... the permatex stops the leak...

some of the seals don't last long at all....
last ones i used were silicon...

You can straighten the bent tube with your hand...
they bend very easily... also You can try cleaning the leak with spray on foaming degreaser ... hose off and dry
then wipe some silastic around the seal/tube where it was leaking... if the surface is clean the silastic will stick ok..

or just replace the leaking one... and get a spare...
replace the seals too...

LEE

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- Helping keep Air Cooled VWs on the road - location: SCONE in the Upper Hunter Valley - Northern NSW 320 kms NNW of SYDNEY---

matberry Moderator Go hard or go home

8,114 posts · joined Mar 2006 ·

#821778
68AutoBug wrote:the adjustable tubes are for repair purposes only...
[/b]
Lee, this is true for the early style of adjustable pushrod tubes, they were designed as a repair tube, but the more recently designed o-ring sealed, alloy, good quality adjustable pushrod tubes that are now available are perfectly useable and will last many refits, for whatever reason.
Matt Berry Motorsports...air cooled advice, repairs and mods Ph 0408 704 662
OFF-ROAD,CIRCUIT,DRAG,STREET,ENDURANCE

Newt Wolfsburg Wizard

478 posts · joined Mar 2008 ·

#822274
Permaseal on the O rings wouldnt have been my first thought.

Any one else use gue on the seals?

Newt
It is as it is - If you didnt enjoy today, you've missed the opportunity.

barls Administrator Causer of Chaos and Mayhem

9,473 posts · joined Jun 2004 ·

#822276
you would need to use one that doesnt set 100% as you need the flex to cope with the expansion of the engine with temp variation.
“We all pay for life with death, so everything in between should be free.” Bill Hicks
the chaos project - click me

matberry Moderator Go hard or go home

8,114 posts · joined Mar 2006 ·

#822279
I polish the alloy and don't use any sealer
Matt Berry Motorsports...air cooled advice, repairs and mods Ph 0408 704 662
OFF-ROAD,CIRCUIT,DRAG,STREET,ENDURANCE

1303Steve Scirocco Rare

8,650 posts · joined Aug 2002 ·

#822283
Hi

I don't know about anybody else but I always put the pushrod tube seals on dry.

Steve

vwo60 Veteran Volks Folk

2,036 posts · joined Feb 2007 ·

#822314
i always lubricate the orings, they need to be able to move to allow for the expansion and contraction of the engine, i also fit the push rod tube seals dry as they need no sealant on them. never had a leak.

kieranweston Commited Dubber

62 posts · joined Sep 2010 ·

#822339
I installed them dry, previous owner had stock tubes on covered in red sealant, i fished a ton of it out of the oil strainer last weekend, even the push rods had it all over the ends.

Still leaking though, Im thinking its the dodgy Empi tubes, might try pressing the seals in if nothing else works

clinker42 Officially Full-On Dubber

381 posts · joined Aug 2008 ·

#822444
I built an engine awhile ago, the previuos person had coated every seal and every tube with 5 bottles of Permatex. Biggest piece of crap work I had ever seen. Cleaned it all up, as Matt said, light polish of the seal seats and I installed 8 of those spring tubes and its been perfect ever since.

I reckon they are the best thing around.

68AutoBug Beetle Restorer - Experience over 138\% - YIKES --

11,654 posts · joined Aug 2002 ·

#822457
matberry wrote:
68AutoBug wrote:the adjustable tubes are for repair purposes only...
[/b]

Lee, this is true for the early style of adjustable pushrod tubes, they were designed as a repair tube, but the more recently designed o-ring sealed, alloy, good quality adjustable pushrod tubes that are now available are perfectly useable and will last many refits, for whatever reason.


THat is good news Matt...

MY first seals I installed with Permatex on both sides of the seals and they were on the engine maybe a couple of years but the car wasn't going... and they all cracked badly
but no leakage because the permatex was doing its job..
[non hardening permatex - used to be called aviation jointing cement ..] so I know that if the seals are crappy ones the permatex will stop any leaks..

these new o ring type push rods sound good...

cheers

Lee
- Helping keep Air Cooled VWs on the road - location: SCONE in the Upper Hunter Valley - Northern NSW 320 kms NNW of SYDNEY---