Mike "Wuzzy121". Rest in peace, brother

Go Back   Tacoma World Forums > Tacoma Discussion > 1st Gen. Tacomas

Notices

Spark plug thread is no good

Reply
 
Thread Tools Search this Thread
Old 06-02-2013, 11:42 PM   #1
deadload [OP] deadload is offline
Junior Member
deadload is on a distinguished road
Joined: Jun 2013, #105471
Location: Sacramento, CA
Gender: Male
Posts: 3
deadload's Tacoma Gallery
Spark plug thread is no good

Hi all,

I just recently bought my 96 Tacoma V6 4x4 with 210,000 on it. I still need to smog it so I did some quick tune up, ie, oil change, air filter and spark plug replacement. What I noticed was for cylinder #3, the spark plug threads have been redrilled/retapped for a "spark plug insert". I've bought all replacement parts, including the insert, and had gone to install it by following the manufacturer, of the insert, instructions. Upon installing, it felt like I had bottomed out, but it just kept turning. After the second revolution, I know the threads are no good so I stopped and re-assembled everything together.

I started the truck up, it idled smooth and sounded great, but when I rev'd it, cylinder #3 started popping. I knew then that the spark plug wanted to jump out.

My question now is, are there any possible fix to this spark plug thread even though it's been fixed once? What recommendations do you guys have?

I was thinking about replacing just the passenger side cylinder head, but with un-matching head I am uncomfortable with that.

Let me know what you guys think.

Thanks in advance.
  Reply With Quote
Old 06-03-2013, 07:25 AM   #2
Member
Bmack04 is on a distinguished road
 
Bmack04's Avatar
Joined: Apr 2013, #102860
Location: Ohio
Gender: Male
Posts: 41
Bmack04's Tacoma Gallery
Replace the head at this point. If you have the money I would pull the other head while you are there and have a machine shop rebuild it also due to the miles on your truck. I wouldn't worry about them being "non-matching" as long as you get the right head for your year truck.
  Reply With Quote
Old 06-03-2013, 07:53 AM   #3
ASE Master Tech
BamaToy1997 is one of the sharper tools in the shedBamaToy1997 is one of the sharper tools in the shedBamaToy1997 is one of the sharper tools in the shedBamaToy1997 is one of the sharper tools in the shedBamaToy1997 is one of the sharper tools in the shedBamaToy1997 is one of the sharper tools in the shedBamaToy1997 is one of the sharper tools in the shedBamaToy1997 is one of the sharper tools in the shedBamaToy1997 is one of the sharper tools in the shedBamaToy1997 is one of the sharper tools in the shedBamaToy1997 is one of the sharper tools in the shed
 
BamaToy1997's Avatar
Marines: M1A2 hull/turret technician, 4th Maint Btn. 4th FSSG.
Name: Bill
Joined: Jan 2012, #71846
Location: Navarre, FL
Age: 46
Gender: Male
Posts: 8,750
BamaToy1997's Tacoma Gallery
What he said ^^^^

At this point with the threads already having been repaired once, you risk trying to do it a second time. I never was a fan of spark plug rethread inserts anyway, since I have seen them come loose when threading in a new plug, and fall into the cylinder. Replace the bad head and have the other head inspected and rebuilt. you should be fine after that.
  Reply With Quote
Old 06-03-2013, 08:00 AM   #4
AKA ::1
127.0.0.1 is one of the sharper tools in the shed127.0.0.1 is one of the sharper tools in the shed127.0.0.1 is one of the sharper tools in the shed127.0.0.1 is one of the sharper tools in the shed127.0.0.1 is one of the sharper tools in the shed127.0.0.1 is one of the sharper tools in the shed127.0.0.1 is one of the sharper tools in the shed127.0.0.1 is one of the sharper tools in the shed127.0.0.1 is one of the sharper tools in the shed127.0.0.1 is one of the sharper tools in the shed127.0.0.1 is one of the sharper tools in the shed
 
127.0.0.1's Avatar
Air Force: 12th TIS
Joined: Dec 2012, #93641
Location: /etc/hosts
Gender: Male
Posts: 1,184
127.0.0.1's Tacoma Gallery
if you have already done a time-sert (not helicoil) then that head is finished

if you have not done a time-sert yet, go for it. that is the last sound option

Or disconnect injector and run as a 5-cyl
  Reply With Quote
Old 06-03-2013, 08:02 AM   #5
deadload [OP] deadload is offline
Junior Member
deadload is on a distinguished road
Joined: Jun 2013, #105471
Location: Sacramento, CA
Gender: Male
Posts: 3
deadload's Tacoma Gallery
Thanks for the response.

It really is a bummer to have to do this because I bought the truck for a good amount and now no more money to do anything.

Anyways, thanks for the advice.
  Reply With Quote
Old 06-03-2013, 08:05 AM   #6
deadload [OP] deadload is offline
Junior Member
deadload is on a distinguished road
Joined: Jun 2013, #105471
Location: Sacramento, CA
Gender: Male
Posts: 3
deadload's Tacoma Gallery
Quote:
Originally Posted by 127.0.0.1 View Post
if you have already done a time-sert (not helicoil) then that head is finished

if you have not done a time-sert yet, go for it. that is the last sound option

Or disconnect injector and run as a 5-cyl
I don't have any history of the car at all except that I am the 3rd owner. I'm not even sure if the threads will be good enough to hold the time-sert.
  Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Similar Threads
Thread Thread Starter Forum Replies Last Post
oil on spark plug thread yamabiker 2nd Gen. Tacomas 4 03-13-2012 08:14 PM
Spark Plug help brandonlamb25 2nd Gen. Tacomas 10 11-18-2010 08:38 AM
Spark plug changes javataco 2nd Gen. Tacomas 2 07-26-2010 08:31 PM
Which Spark Plug? bawilson21 Performance and Tuning 8 06-17-2009 11:22 PM
Spark plug help! 5vzrider00 Performance and Tuning 13 03-20-2009 12:51 PM


Copyright © 2014 Tacoma Forum. Tacoma World is not owned by, or affiliated with Toyota Motor Corporation.