Help - Search - Members - Calendar
Full Version: Push rod tubes
914World.com > The 914 Forums > 914World Garage
lbreen
This has to sound pretty stupid. How do you change the gaskets on the push rod tubes? Does the whole head have to come off? Do you replace the springs. or the whole tube?Thanks lb
Mueller
short version:

jack up car, remove valve covers, remove rocker arm assmeblies, remove push rods, remove push rod tubes, replace O-rings only

should take a few hours....

more detailed instructions have been posted before, hopefully someone can post them for you....

oh wait,,,,a six or a four???

above is for a 4 banger...no idea on a six.....
lbreen
Thank you, It's a four. A few years ago I worked on a vw type 1. Sounds the same. Much appreciated. Thanks again, Larry Breen
r_towle
with a type one you need to remove the heads...type 4 the tubes come out of the head through the top of the head..instead of being sandwiched in between the head and the case...much easier..

Rich
Dave_Darling
Remember, you can leave the tube "hanging" from the bore in the cylinder head while you replace the seals.

Do one cylinder at a time, and set that cylinder to TDC before you start on it. Both rocker arms need to have some slack or you'll never get the right torque reading on the rocker shaft retaining nuts. (Ten lb-ft, yes 10.0!) It's a tight space to swing a torque wrench in, but you don't want to overtorque those nuts.

It can be a pain getting the pushrods to seat in the cups in the ends of the lifters. Have patience and keep trying! (Or it can be easy, sometimes.)

Make sure that the tube retaining spring is against the shoulders of the outer ends of the tubes when you're done. You don't want it sticking up far enough to rub against the pushrod, or you'll wear a notch in the pushrod.

Access may be a b*tch, but it is quite doable.

--DD
Jeffs9146
QUOTE
oh wait,,,,a six or a four???

above is for a 4 banger...no idea on a six.....


6 is even easier!!! No pushrods to deal with!

Jeff
IanStott
Since I already have my engine out and on a stand I have been thinking about the other pushrod tubes I saw advertised somewhere, collapseable or telescopic I think. What experiences or recommendations do you have?

Ian Stott
Moncton
Canada

PS. Can't work on my car much today as I have to check out my snowblower and get it ready to go!!
Mark Henry
QUOTE (Jeffs9146 @ Nov 15 2005, 03:11 AM)
QUOTE
oh wait,,,,a six or a four???

above is for a 4 banger...no idea on a six.....


6 is even easier!!! No pushrods to deal with!

Jeff

still has drain tubes....same diff rolleyes.gif
Mark Henry
QUOTE (IanStott @ Nov 15 2005, 11:20 AM)
Since I already have my engine out and on a stand I have been thinking about the other pushrod tubes I saw advertised somewhere, collapseable or telescopic I think. What experiences or recommendations do you have?

stromberg.gif
Allan
QUOTE (Mark Henry @ Nov 15 2005, 07:29 AM)
QUOTE (IanStott @ Nov 15 2005, 11:20 AM)
Since I already have my engine out and on a stand I have been thinking about the other pushrod tubes I saw advertised somewhere, collapseable or telescopic I think. What experiences or recommendations do you have?

stromberg.gif

agree.gif stromberg.gif
Jeffs9146
QUOTE
still has drain tubes....same diff


Not even close. You don't even have to take off the valve covers.

1. Remove exahust
2. Crush and remove old tubes
3. Reinstall with expandable tubes
4. Reinstall exahust

Done!

Jeff

Mark Henry
QUOTE (Jeffs9146 @ Nov 15 2005, 12:12 PM)
QUOTE
still has drain tubes....same diff


Not even close. You don't even have to take off the valve covers.

1. Remove exahust
2. Crush and remove old tubes
3. Reinstall with expandable tubes
4. Reinstall exahust

Done!

Jeff

damn....it still leaks laugh.gif

dead horse.gif
r_towle
Im just about to do this, the front and rear seals and the oil cooler seals...

I saw on PP site the vitron (sp) seals...which one do you guys use...

And, when I did this last time there was mention of using a rtv gasket material in the case also....I honestly cant remember how i did it...but i think that was the deal...

Is the goo needed to ensure no leaks...if so, where is that article...

Rich
Mark Henry
Liquid teflon on the P/R seals...make sure everything clean-clean-clean!

Nothing on the oil cooler seals. clean again.

Nothing on the main/nose seals...a bit of grease on the inner lip (seal to crank) for start-up lube
r_towle
liquid tephlon...never hear of it...

I know the rest...it was just I vaguely remember putting something like rtv gasket on the seal where the pr tube is in the case, using my finger to smooth out the built in valley that traps oil in there....it was one of the tech tip things....cant remember and it was before this site....

might have either been PP, but I searched there and could not find it...could have been the AA book on 914 tech tips...

Is that needed, done or stupid??

Rich
Mark Henry
Permatex...can't remember the number off hand.

Jake's trick...done it many times now, works gud.
r_towle
so that is a yes...finger to make smooth...eliminate the valley??

Rich
Jeffs9146
QUOTE
damn....it still leaks  
headbang.gif

laugh.gif laugh.gif




This is a "lo-fi" version of our main content. To view the full version with more information, formatting and images, please click here.
Invision Power Board © 2001-2024 Invision Power Services, Inc.