Good afternoon,
My shop just called that the small oil leak I have on my 73 2.0 is situated down on the oiltubes (or do you call it push rod tubes ?) and that he needs the pull the engine to fix the issue.
For my knowledge (I'm no mechanic) is the oil leak usually caused by bad/dried out seals or can the tubes have an issue themselves.
In short, is it best to replace all seals or also all tubes ?
thks yr advice
note : can I it drive for a while with this small leak and fix the issue in winter or does it need urgent attention ? Car is in the shop for 5 weeks now to fix the rustissue on my aft bottomfloor and realy want to drive it for a couple of weeks or till winter falls in.
krgds
Dax
A couple thoughts. First, it really depends on how bad they are. Second, how bad are they dripping on your exhaust.
Yes they are caused by dry cracked seals and can be replace without dropping the engine.
I would take care of it sooner than later , the oil from the push rods are dripping on the heat exchangers and may cause fire.
Dax,
Inspect the pushrod tubes and verify that they are all straight and not bent.
The seals can be easily replaced without removing the engine then you need to reset your valve clearances.
With the covers are off, make sure the springs are installed that hold the pushrod tubes in place.
What size engine do you have? I have a complete extra set of pushrod tubes if yours are damaged (they should not be).
I also have an extra set of the retention springs.
I also have a complete set of pushrod tube seals that I will probably just throw in your package.
If you order new seals get the Viton type they are better than the cheaper versions in the seal kits.
If you are in no hurry, have any other parts sent to me & I'll put them all in your package.
Stu
It's easier with the engine out. But the R&R costs time and money.
AA can probably get you the seals but if you do a search here you will find a number of folks who prefer not to deal with them. You don't need to drop the engine to replace the push rod tube seals and the job is relatively easy. If you look on the Pelican site they have a tech article on how to replace the seals (and tubes if need be). They also have the tubes (no need to replace unless damaged) and seals: http://www.pelicanparts.com/cgi-bin/ksearch/pel_search_2014.cgi?SUPERCAT_FLAG=Y&make=POR&Context_make=&please_wait=N&LastVisited_input=9144&Previous_Section=ENGOIL&forumid=&threadid=&command=DWsearch&description=push+rod+tube+seals&I1.x=16&I1.y=0.
As noted above, the Viton brand is the preferred replacement seal. If you are getting a drip or two I wouldn't be to concerned about a fire but when you do it, replace all the seals at the same time.
Keith
Auto Atlanta has few fans on this site due to poor customer service. Pelican is a better source for parts.
Mia at Auto Atlanta is from Belgium.
In fact, she may be there right now.
You don't really need to worry much about fire from a pushrod tube leaking on the heat exchanger.
Most of the orings are fairly easy to replace with the engine in the car, some are a bit tricky.
A professional mechanic should easily be able to replace the seals in under 2 hours. A mechanic with 914 experience should be able to cut that time down considerably. The tubes (which are rarely replaced) and the seals are readily available in the US.
The Cap'n
The key is that you only have to pull the tubes halfway out of the head to replace the seals.
--DD
If you want to really get them clean, they can be removed from the engine with the engine in the car, as can the pushrods. It takes some fiddling, but they DO come out.
The Cap'n
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