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spark plug tube seals

4.7K views 6 replies 5 participants last post by  davemac2  
#1 ·
Hey guys,

Have not been on these forums for ages, but I recently acquired a 2001 camry xle last year in April and have been in the process of repairing it. I have been working on it sporadically for the last year mostly because of time constraints and motivation (don't know why I buy these project cars. :) ). It's kind of a long story, but it had a major sludge issue, burnt valve. Other than that it is in very good shape and the sludge doesn't look like it did any real damage. I may put up some pics of all that stuff later in another thread to show you the gory details.

However, I'm in the process of putting it all back together and am going to be installing new spark plug tube seals in the valve covers. I bought a gasket kit and got the tube seals in that. Pics attached of these seals. From what I can tell of this seal's design, I would have to install it backwards in order to be able to have the seal slip over the spark plug tube without having the seal catch/get damaged on the tube. Ie. the hollow part of the seal would have to face the valve cover and the closed part with the bump would face the inside. I recall finding another discussion a month or two back which talked about some Felpro or other seal designs like this that may have been different to OEM.

If any one has some advice on this I would appreciate it. I don't think it makes much of a difference with either install orientation on the sealing between the seal and the valve cover itself?
 

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#2 ·
Yeah, someone contacted FelPro and was instructed to install them with the closed end exposed to the inside of the motor.

When I did mine recently on my Avalon, the originals were installed oppositely, so that's how I installed the new ones. It *does* make it more difficult to get the valve cover on, but I don't think it makes any difference in sealing performance.

My 2 cents.
 
#3 ·
While you have it apart you may want to put some toyota FIPG sealant on the tube threads. I had a small bit of oil on my spark plugs so when I did the VC I unscrewed the spark plug tubes from the engine, put the FIPG sealant on the threads and screwed them back in. I thought it was more likely that oil had seeped up the threads rather than get all the way to the top of the tubes and then drip back down. I don't know if your engine has the same setup but if there are long tubes around the spark plugs and you have the cover off it doesn't take much time to unscrew them and seal them.
 
#4 ·
The V6 has pressed-in tubes, IIRC. Haven't had those leak yet...good advice for the 5S-FE though

I second the installing them "upside-down" thing. Here's the thread: http://www.toyotanation.com/forum/1...-4th-generation-1992-1996-1997-2001/1363553-brand-valve-cover-gasket-1mzfe.html

...last time I did them, I OCD'd and installed them with the open end toward the oil splashes, like most oil seals. Much more annoying to get it over the tubes, and I had to use a screwdriver to push the edges over little by little. Upside-down, much easier.