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Author Topic: pushrod tubes  (Read 13165 times)
Peter
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Posts: 1300



« on: May 03, 2015, 22:10:11 pm »

Hello,
I plan to use aluminium tapered pushrods..
Does anybody have experience which tubes will fit?
I run csp tubes now with chromoly pushrods,
but with these, i allready see some marks from touching..
I think I read somewhere wbx tubes might work?

Thanks, Peter
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Phil West
Sr. Member
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Posts: 402



« Reply #1 on: May 04, 2015, 11:06:21 am »

Hi Peter,

I run the JPM ally pushrods with Jaycee tubes.  Obviously depends on your engine spec but with my setup they fouled the tubes and we had to get the pushrods taper turned down to clear.  Still very tight clearances.

I believe the JPM tubes will be a better bet?
Cheers
Phil
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Udo
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Posts: 2077



« Reply #2 on: May 04, 2015, 12:52:18 pm »

Hello,
I plan to use aluminium tapered pushrods..
Does anybody have experience which tubes will fit?
I run csp tubes now with chromoly pushrods,
but with these, i allready see some marks from touching..
I think I read somewhere wbx tubes might work?

Thanks, Peter

Did you try to move the rockers that touch the tube ?

Udo
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Peter
Hero Member
*****
Posts: 1300



« Reply #3 on: May 04, 2015, 13:46:43 pm »

Hey Udo,
i saw they rubbed after taking apart my engine.
But the marks are in the middle of the pushrod, i think where the tubes slide into each other.
I guess the JPM's are the way to go then
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BeetleBug
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Posts: 2836


Snabba grabben...


« Reply #4 on: May 04, 2015, 13:58:23 pm »

Cheap ones from CB works fine with thick alu double tapered pushrods:

http://www.cbperformance.com/ProductDetails.asp?ProductCode=1565

or stainless ones:

http://www.cbperformance.com/ProductDetails.asp?ProductCode=1567

And they don't leak like some of the more fancy tubes does.

-BB-
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10.41 - 100ci - 1641ccm - 400hp
kb
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« Reply #5 on: May 04, 2015, 14:37:06 pm »

Cheap ones from CB works fine with thick alu double tapered pushrods:

http://www.cbperformance.com/ProductDetails.asp?ProductCode=1565

or stainless ones:

http://www.cbperformance.com/ProductDetails.asp?ProductCode=1567

And they don't leak like some of the more fancy tubes does.

-BB-

I used these on mine with JPM pushrods. They touched slightly, so I tore a hole in two of them after a while. I could maybe have tweaked them a bit so they'd clear, but didn't really think of it until I saw the leak.
Running the CSP for JPM pushrods now - they are expensive - but no leaks yet - and they clear.
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BeetleBug
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Snabba grabben...


« Reply #6 on: May 04, 2015, 14:52:40 pm »

Cheap ones from CB works fine with thick alu double tapered pushrods:

http://www.cbperformance.com/ProductDetails.asp?ProductCode=1565

or stainless ones:

http://www.cbperformance.com/ProductDetails.asp?ProductCode=1567

And they don't leak like some of the more fancy tubes does.

-BB-

I used these on mine with JPM pushrods. They touched slightly, so I tore a hole in two of them after a while. I could maybe have tweaked them a bit so they'd clear, but didn't really think of it until I saw the leak.
Running the CSP for JPM pushrods now - they are expensive - but no leaks yet - and they clear.

Interesting. I have used them on both my engines for the last 5 years without issues.

-BB-
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10.41 - 100ci - 1641ccm - 400hp
Phil West
Sr. Member
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Posts: 402



« Reply #7 on: May 04, 2015, 18:05:42 pm »

Cheap ones from CB works fine with thick alu double tapered pushrods:

http://www.cbperformance.com/ProductDetails.asp?ProductCode=1565

or stainless ones:

http://www.cbperformance.com/ProductDetails.asp?ProductCode=1567

And they don't leak like some of the more fancy tubes does.

-BB-

Are those stainless tubes the same wide mouth as the #1565?  They don't look it in the photos although it's not easy to see properly
Cheers
Phil
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Peter
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Posts: 1300



« Reply #8 on: May 04, 2015, 22:34:58 pm »

Thanks a lot guys!
I think i found them at CSP

http://www.csp-shop.com/cgi-bin/cshop2/front/shop_main.cgi?func=det&wkid=20200237986&rub1=Engine&rub2=Valve%20Train%20%2F%20Cylinder%20Heads%2CPush%20Rod%20Tubes&artnr=12597a&pn=0&sort=0&all=
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viNce
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Posts: 86



WWW
« Reply #9 on: May 10, 2015, 13:46:33 pm »

Scat 3 orings tubes are big inside.
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fish
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Posts: 224



« Reply #10 on: May 18, 2015, 16:42:29 pm »

^^^ I agree, have used Scat big mouth with no issues or leaks
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Had a fight with a Magneto, it won!
Phil West
Sr. Member
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Posts: 402



« Reply #11 on: June 12, 2015, 12:03:13 pm »

Just measured up some tubes:

Stock VW - ID 19.5mm OD 20.9mm
Scat Big mouth - ID 20.7mm OD 22.9mm
CB wide mouth ID 22mm, OD 23.65mm
Jaycee - ID 22.2mm OD 24.1mm

Cheers
Phil
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Peter
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Posts: 1300



« Reply #12 on: June 12, 2015, 14:21:05 pm »

got a big leak from one side of the motor..
I guess they are not idiot proof Smiley
will check this WE where its puking from and might order the jpm's
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chateau la fete
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« Reply #13 on: May 01, 2016, 10:30:08 am »

Hi

Has anyone tried using elring pushrod tube seals with CSP telescopic push rod tubes??
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richie
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Posts: 5604



« Reply #14 on: May 01, 2016, 12:59:09 pm »

Hi

Has anyone tried using elring pushrod tube seals with CSP telescopic push rod tubes??

I use them with Fast fab tubes so no reason they cant be used with CSP, but you do have to stretch them on 

cheers Richi
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UltraOrange67-2443
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Posts: 1034



« Reply #15 on: May 01, 2016, 16:02:00 pm »

I have Logmech.

22mm

http://logmech.se/produkter/motor/stotstangsror/
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1967 1200 2920cc EFI
neil68
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Posts: 538



« Reply #16 on: May 01, 2016, 19:48:23 pm »

I have the Jaycee 22.2 to 19 mm tubes but they are very close to touching at the overlap.  I looked at the JPM tube description and pictures, but they appear to have the 22 mm section very short, which would still leave the smaller 19 mm section at the widest part of the pushrods. I might try to shorten the 19 mm section of my Jaycee tubes to keep the pushrod waist within the 22.2 mm section as much as possible.
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Neil
Der Kleiner Rennwagens
'68 Beetle, 2332 cc, 204 WHP
12.5 seconds @ 172 KM/H (107.5 MPH)
Dynojet Test:  https://www.youtube.com/watch?v=M9B_H3eklAo
cedric
Sr. Member
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Posts: 260



« Reply #17 on: May 03, 2016, 07:53:03 am »

Peter, i have the same tubes and no leaks..so i am lucky... Grin
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Torben Alstrup
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Posts: 716


« Reply #18 on: May 07, 2016, 08:56:03 am »

If the markings are on the middle of the rods it is 95% certain resonance, or flex. not necessarily because the PRīs are too small.

T
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robkong
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« Reply #19 on: May 25, 2016, 03:54:31 am »

Pauter has big push rod tubes!
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Fiatdude
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Posts: 1823



« Reply #20 on: May 25, 2016, 06:08:32 am »

Pauter has big push rod tubes!

X2 -- I think they will handle up to 1/2" pushrods -- Roger Crawford made some killer ones, but I got the last set and Roger has now retired and closed his shop
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spanners
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Posts: 286



« Reply #21 on: May 25, 2016, 07:55:55 am »

I gave up on 'adjustable' tubes as they all gave problems at some point, I use genuine VW Wasserboxer tubes reversed, big end to head with stretched on T1 seals , the small end seal goes down into the case beyond the conical seal seat but still produces an oil tight seal, you have to port the head to allow for the big tube end to sit in correctly, a fit and forget trouble free instal and they clear 1/2" push rods, but these tubes are not a cheap part from VW dealers, best results come from only use Elring seals.
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Best regards, spanners.
Peter
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Posts: 1300



« Reply #22 on: May 25, 2016, 11:48:36 am »

in the end I bought JPM's,
no leaks there
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Eric Ellis (57HotrodVW)
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Just wait, you'll see...


WWW
« Reply #23 on: November 09, 2022, 03:27:28 am »

Do the JPM tubes work with stock casting heads, without the need to open the heads up to fit the tubes?
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sonic
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Posts: 176


« Reply #24 on: November 09, 2022, 08:45:19 am »

Hi , they do . Some work has to be done to cooling fins . They are rather big and dosent clear the fins in a number of places ..

Rgs/Erich
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neil68
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Posts: 538



« Reply #25 on: November 18, 2022, 07:41:18 am »

I recently purchased JPM pushrod tubes (made by CSP).  The JPM tubes are 23 mm ID in the narrow section, whereas the other tubes are only 19 mm (eg. my former tubes from Jaycee, Scat, etc).

JPM tubes are 27 mm ID in the larger section, although this houses the internal spring, so it works out to ~23 mm for the entire length (i.e. both sections).  Iím running 48 x 38 valves and found that the 12 mm dual-taper JPM and Logmech pushrods (Iíve used both) rubbed on the old Jaycee tubes.
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Neil
Der Kleiner Rennwagens
'68 Beetle, 2332 cc, 204 WHP
12.5 seconds @ 172 KM/H (107.5 MPH)
Dynojet Test:  https://www.youtube.com/watch?v=M9B_H3eklAo
Karlos99
Newbie
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Posts: 44


« Reply #26 on: November 26, 2022, 22:18:22 pm »

Iíve got JPM push rod tubes in my 2276 which has an FK10, 1.4 rockers and aircooled.net dual taper aluminium push rods. Plenty of clearance, not cheap but they fit nice and are bone dry.
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sonic
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« Reply #27 on: November 26, 2022, 22:26:12 pm »

Ok , probably aftermarket heads with less cooling ,,type CB ..

Rgs/E
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karmi
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Posts: 29


« Reply #28 on: November 27, 2022, 14:28:48 pm »

I like this.
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