Manifold stud removal, Honda gx670

ezgoinmd · 02-10-2017, 06:50 PM

So, I got a good running gx670 and I need to remove the junky old manifold.

The manifold studs are worn out. What is the best method to get the old studs out? I was going to soak the threads in pblaster and heat the head , but are there other secret methods?

Any help is appreciated. New to the site.

2002 36v ezgo txt; 2003 gas ezgo txt

Sent from my SPH-L720 using Tapatalk

BLACK DEATH · 02-10-2017, 07:11 PM

I had the same thing on my truck....
I used an easy out but it doesn't always work.
A trick most have said works is welding a washer to the stud, then welding a nut to the washer so you can get a wrench on it. Also the welding will help heat it up to break it free.
Is any of the stud sticking out?

ezgoinmd · 02-10-2017, 07:15 PM

I've got about 2-1/2" of stud exposed. Some idiot rounded a nut off on the stud before I bought it

Sent from my SPH-L720 using Tapatalk

Shepard · 02-10-2017, 07:28 PM

I'm old school - don't be in a hurry. PB blaster for sure. Use a hammer - strike the end of the stud. This will break loose some of the rust holding it in place. Spray again with PB and use a good vise grip -- grip as close to the head as possible. Work in 2 directions back and forth. If it doesn't come loose -- use a propane torch and heat the head around the stud. Be careful go slow - don't force it to hard.

BLACK DEATH · 02-10-2017, 07:32 PM

That makes it easier....
Spray pb blaster and let it sit so the stud is straight up, then do it again the next day.
Then....
We heated up the area also and with a good vise grips or pipe wrench it broke free.
Now when it breaks free, go back n forth with the stud. Don't just keep trying to go one way and always take your time.
Or....
If not, weld a nut onto the stud and use a wrench to break it free.

ezgoinmd · 02-10-2017, 07:35 PM

Thank you! My fear is stripping the threads and having to helicoil them back in.

Sent from my SPH-L720 using Tapatalk

ezgoinmd · 02-10-2017, 07:36 PM

And one thing of note: this is an aluminum head, so at least rust isnt an issue.

Sent from my SPH-L720 using Tapatalk

BLACK DEATH · 02-10-2017, 07:56 PM

I've never seen a thread strip on aluminum like this, either it comes out or it won't

ezgoinmd · 02-10-2017, 07:58 PM

Great

Sent from my SPH-L720 using Tapatalk

ezgoinmd · 02-10-2017, 07:59 PM

I watched a video on YouTube that covers the weld a nut method. I should have thought of that

Sent from my SPH-L720 using Tapatalk

02-10-2017, 06:50 PM	#1
ezgoinmd Not Yet Wild Join Date: Feb 2017 Posts: 12	Manifold stud removal, Honda gx670 So, I got a good running gx670 and I need to remove the junky old manifold. The manifold studs are worn out. What is the best method to get the old studs out? I was going to soak the threads in pblaster and heat the head , but are there other secret methods? Any help is appreciated. New to the site. 2002 36v ezgo txt; 2003 gas ezgo txt Sent from my SPH-L720 using Tapatalk
ezgoinmd Not Yet Wild Join Date: Feb 2017 Posts: 12

02-10-2017, 07:11 PM	#2
BLACK DEATH Gone Wild Join Date: Dec 2009 Location: Corpus Christi, TX Posts: 1,644	Re: Manifold stud removal, Honda gx670 I had the same thing on my truck.... I used an easy out but it doesn't always work. A trick most have said works is welding a washer to the stud, then welding a nut to the washer so you can get a wrench on it. Also the welding will help heat it up to break it free. Is any of the stud sticking out?

02-10-2017, 07:15 PM	#3
ezgoinmd Not Yet Wild Join Date: Feb 2017 Posts: 12	Re: Manifold stud removal, Honda gx670 I've got about 2-1/2" of stud exposed. Some idiot rounded a nut off on the stud before I bought it Sent from my SPH-L720 using Tapatalk
ezgoinmd Not Yet Wild Join Date: Feb 2017 Posts: 12

02-10-2017, 07:28 PM	#4
Shepard Crazy Ole Man Join Date: Jan 2016 Location: Owego NY Posts: 2,758	Re: Manifold stud removal, Honda gx670 I'm old school - don't be in a hurry. PB blaster for sure. Use a hammer - strike the end of the stud. This will break loose some of the rust holding it in place. Spray again with PB and use a good vise grip -- grip as close to the head as possible. Work in 2 directions back and forth. If it doesn't come loose -- use a propane torch and heat the head around the stud. Be careful go slow - don't force it to hard.

02-10-2017, 07:32 PM	#5
BLACK DEATH Gone Wild Join Date: Dec 2009 Location: Corpus Christi, TX Posts: 1,644	Re: Manifold stud removal, Honda gx670 That makes it easier.... Spray pb blaster and let it sit so the stud is straight up, then do it again the next day. Then.... We heated up the area also and with a good vise grips or pipe wrench it broke free. Now when it breaks free, go back n forth with the stud. Don't just keep trying to go one way and always take your time. Or.... If not, weld a nut onto the stud and use a wrench to break it free.

Today
BGW	Sponsored Links __________________ This advertising will not be shown in this way to registered members. Register your free account today and become a member on Buggies Gone Wild Golf Cart Forum

02-10-2017, 07:35 PM	#6
ezgoinmd Not Yet Wild Join Date: Feb 2017 Posts: 12	Re: Manifold stud removal, Honda gx670 Thank you! My fear is stripping the threads and having to helicoil them back in. Sent from my SPH-L720 using Tapatalk
ezgoinmd Not Yet Wild Join Date: Feb 2017 Posts: 12

02-10-2017, 07:36 PM	#7
ezgoinmd Not Yet Wild Join Date: Feb 2017 Posts: 12	Re: Manifold stud removal, Honda gx670 And one thing of note: this is an aluminum head, so at least rust isnt an issue. Sent from my SPH-L720 using Tapatalk
ezgoinmd Not Yet Wild Join Date: Feb 2017 Posts: 12

02-10-2017, 07:56 PM	#8
BLACK DEATH Gone Wild Join Date: Dec 2009 Location: Corpus Christi, TX Posts: 1,644	Re: Manifold stud removal, Honda gx670 I've never seen a thread strip on aluminum like this, either it comes out or it won't

02-10-2017, 07:58 PM	#9
ezgoinmd Not Yet Wild Join Date: Feb 2017 Posts: 12	Re: Manifold stud removal, Honda gx670 Great Sent from my SPH-L720 using Tapatalk
ezgoinmd Not Yet Wild Join Date: Feb 2017 Posts: 12

02-10-2017, 07:59 PM	#10
ezgoinmd Not Yet Wild Join Date: Feb 2017 Posts: 12	Re: Manifold stud removal, Honda gx670 I watched a video on YouTube that covers the weld a nut method. I should have thought of that Sent from my SPH-L720 using Tapatalk
ezgoinmd Not Yet Wild Join Date: Feb 2017 Posts: 12

Similar Threads
Thread	Forum
Honda GX670 Exhaust	Big Block Talk!
Honda GX670	Big Block Talk!
Honda gx670 24hp	Big Block Talk!
Yamaha G-16 w/ honda GX670	Big Block Talk!