Go Back   Club Lexus Forums > Lexus Model Forums > RX Models > RX - First Generation
Sign in using an external account
Register Forgot Password?

Spark plug tube seals in the valve covers. How do you replace 'em?

Reply
 
 
 
 
Thread Tools Search this Thread Display Modes
Old 05-13-12, 02:07 PM   #1
kerno
Driver School Candidate
Trader Score: (0)
 
Join Date: May 2012
Location: HI
Posts: 2
Default Spark plug tube seals in the valve covers. How do you replace 'em?

I did valve cover gaskets yesterday and the Fel-pro gasket kit came with the six seals that fit into the valve cover and are used to seal the top of the spark plug tubes. The problem is that the seals are under a steel baffle that was factory installed by peening over the bosses that mount the baffle. I see no way to remove the baffle in such a manner that you can replace it - but you can't replace the seals unless the baffle is removed. If they include the seals, there must be some way to replace them.

As a side note, the rear intake manifold brace is a real design gaff. That thing is tough to get the bolt out of so you can remove the intake..
This ad is not displayed to registered members.
Register your free account today and become a member on Club Lexus!
kerno is offline   Reply With Quote
Old 05-13-12, 02:25 PM   #2
code58
Lexus Champion
Trader Score: (0)
 
Join Date: Feb 2008
Location: Ca.
Posts: 1,709
Default

I wish I could remember how I replaced the seals but it's been about 3 or 4 years ago now. I DID replace them (front cover) when I replaced the gasket but you definitely DON'T remove the baffle. I can't imagine anyone has ever removed the baffle to replace the seals. Wish i could help more but it can be and is done.
code58 is offline   Reply With Quote
Old 05-14-12, 02:27 PM   #3
artbuc
Lead Lap
Trader Score: (0)
 
Join Date: Oct 2005
Location: pa
Posts: 477
Default

There are some good pics over on ToyotaNation. Each seal is retained by two small tabs at 180 degrees. These tabs are part of the baffle and fairly thin and easy to bend. The Repair Manual shows a tech using a drift and hammer to bend them back. I used an old flat blade screwdriver. Once the tabs are bent back, you can easily pop out the old seals with a screwdriver. Do not try driving in the new seals which so many do. Get yourself a bolt, washers and nut to make a little press - it works great. If you do drive them in, make sure you have the VC well supported with a small section of 2x4. Also, take note of the position of the old seals. If you drive the new seals in all the way home, you will have gone too far.

Last edited by artbuc; 05-14-12 at 02:31 PM..
artbuc is offline   Reply With Quote
Old 05-22-14, 05:04 PM   #4
itzmedeezy
Driver School Candidate
Trader Score: (0)
 
Join Date: Nov 2011
Location: CA - California
Posts: 6
Default

where can I find these tube seal at? been running all over auto part store and no one carry's it.
itzmedeezy is offline   Reply With Quote
Old 05-22-14, 05:25 PM   #5
salimshah
Moderator
Trader Score: (0)
 
Join Date: Apr 2001
Location: Austin, TX
Posts: 8,096
Default

You will find lot more information in the SC400 forum.

Also the tube and seals are not generic enough to be found in a autoparts store.

Salim
salimshah is offline   Reply With Quote
Old 05-22-14, 05:37 PM   #6
RX300CE
Rookie
Trader Score: (0)
 
RX300CE's Avatar
 
Join Date: Aug 2011
Location: MA
Posts: 56
Default

There are small 2 tabs each seal, use small flat screw drivers bent one tab up then you have room to take out old seal, put new seal needs lube a little bit engine oil around new seal and bent back a tab to lock a new seal .
__________________

2002 RX300 Coach Edition
RX300CE is offline   Reply With Quote
Old 05-22-14, 06:03 PM   #7
carguy07
Lexus Test Driver
Trader Score: (0)
 
carguy07's Avatar
 
Join Date: Nov 2005
Location: OH
Posts: 1,489
Default

Quote:
Originally Posted by itzmedeezy View Post
where can I find these tube seal at? been running all over auto part store and no one carry's it.
Advance Auto and Autozone can order them or Rock Auto, or ebay of course, Toyota & Lexus dealers will have them too. Didn't the valve cover gasket come with them?
carguy07 is offline   Reply With Quote
Old 05-23-14, 12:48 PM   #8
itzmedeezy
Driver School Candidate
Trader Score: (0)
 
Join Date: Nov 2011
Location: CA - California
Posts: 6
Default

Unfortunately it did not come with the seals. So I ended up driving to toyota and lexus dealers. Lexus wanted about $9 a seal and toyota wanted about $5 each...
itzmedeezy is offline   Reply With Quote
Old 05-26-14, 02:41 PM   #9
JAB
Lead Lap
Trader Score: (0)
 
Join Date: Jan 2006
Location: Virginia
Posts: 586
Default

Trust me on this, been there done that. With a lot of miles on the car those seals CAN NOT BE REMOVED. They get 'baked' into the baffle. I tried it on my 1999 RX with about 210K. I replaced the entire rear valve cover with the 'new' version, which took care of the spark plug seals, which are pre-installed in the new cover. I didn't change the front one, thinking that if they ever do leak, I will replace the entire cover, seals and all.

Kerno is absolutely right - major design snafu here; the rear most bolt, passenger side, that secures the valve cover to the head is an absolute bear to remove and reinstall.
__________________
JAB
Fairfax, VA
1999 RX300
200K, AWD
Original Owner
JAB is offline   Reply With Quote
Old 05-26-14, 03:51 PM   #10
salimshah
Moderator
Trader Score: (0)
 
Join Date: Apr 2001
Location: Austin, TX
Posts: 8,096
Default

Quote:
Originally Posted by JAB View Post
snip ,,,

Kerno is absolutely right - major design snafu here; the rear most bolt, passenger side, that secures the valve cover to the head is an absolute bear to remove and reinstall.
I recently re-torqued my valve cover bolts. I could not get my torque wrench on all, but managed to get to all of them .. some from the top and some from below.

Salim
salimshah is offline   Reply With Quote
Old 05-26-14, 03:51 PM
 
 
 
 
Reply

Tags
460, change, changing, club, gasket, install, lexus, ls, ls400, ls430, oil, plug, replacing, seal, seals, spark, tube, valve

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Valve cover gasket leak Bocatrip LS430 14 03-26-14 05:13 PM
2003 ES300 Valve cover gasket. tman1352 ES300 and ES330 1 02-11-14 04:42 AM
Are aftermarket valve cover gaskets any good? vintagelex ES300 and ES330 8 06-02-13 10:00 PM
Spark Plug Tube Seal Replacement knarf0117 ES300 and ES330 0 07-27-11 04:25 AM
Valve covor gasket removed and replaced yanivsme LS400 11 11-11-10 12:11 PM

All times are GMT -7. The time now is 10:35 AM.

Join ClubLexus
Advertising


Copyright © 2000-2008 Internet Brands, Inc. All Rights Reserved
Privacy Policy | Disclaimer | Terms of Use | JOBS


Get all contact info