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Who.Me? 
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Joined: July 14, 2014
Posts: 2211
Location: UK (South)
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 Posted: Sun Apr 09, 2023 8:53 am Post subject: Baked on Permatex |
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I got some decent sized gobs of Permatex High Tack on my heater boxes and a little on the heads a while back trying to stop some weaping from pushrod tube seals (Scat tubes).
I didn't think much of it at the time because it usually stays pretty sticky and acetone generally cleans it off. I figured I could come back later and clean it up, but it's been there long enough and hot enough to bake rock hard. Acetone won't touch it.
Anyone know what'll soften it now? The heater boxes are powder coated and seem to be impervious to most solvents.
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Andy
Looking for info on my truck's history. Are you from Campbell California or nearby. Do you recognise it? ... http://www.thesamba.com/vw/forum/viewtopic.php?t=636786 |
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67rustavenger
Samba Member
Joined: February 24, 2015
Posts: 9767
Location: Oregon
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| Posted: Sun Apr 09, 2023 9:06 am Post subject: Re: Baked on Permatex |
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Mineral spirits worked on some baked on Permatex.
I soaked a shop rag and layed on the baked on brown stuff. Let it sit for a bit and check to see if it softens the sealer.
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mark tucker
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Joined: April 08, 2009
Posts: 23937
Location: SHALIMAR ,FLORIDA
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| Posted: Mon Apr 10, 2023 12:06 pm Post subject: Re: Baked on Permatex |
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| Ive never ued that stuff on vw motors... especialy tube seals. my scat seals never leeked. there are some tips to install them so they dont leek. 1 oil the orings, 2 oil the seats on the heads&block. 3 use led flashlight to look from behind to be sure the seal has sealed. it needs to slip into place in it's seat. if you install them dry they have traction like a tire, and may not seat where they need to, leaving a gap witch will leek and the seal will be stuck there and not slide even with that leek. it's not the seals or the tubes it's the installer. |
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Who.Me?
Samba Member
Joined: July 14, 2014
Posts: 2211
Location: UK (South)
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| Posted: Mon Apr 10, 2023 12:47 pm Post subject: Re: Baked on Permatex |
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| mark tucker wrote: |
| Ive never ued that stuff on vw motors... especialy tube seals. my scat seals never leeked. there are some tips to install them so they dont leek. 1 oil the orings, 2 oil the seats on the heads&block. 3 use led flashlight to look from behind to be sure the seal has sealed. it needs to slip into place in it's seat. if you install them dry they have traction like a tire, and may not seat where they need to, leaving a gap witch will leek and the seal will be stuck there and not slide even with that leek. it's not the seals or the tubes it's the installer. |
I tried dry, I tried oil, I had them apart a bunch of times. As a quick fix I tried Permatex, but it didn't work either.
They only leak(ed) at the seals to the heads.
With the engine on the bench; I could see that the sockets in the head aren't smooth. Whatever they were cut with left quite pronounced concentric grooves and sharp edges. They were new heads that I fitted as part of the rebuild a couple of years ago.
The sockets in the case are smooth, and they haven't leaked. The head side didn't leak with the old heads, so I figure the problem is the sockets in these heads.
I've done my best to smooth the sockets with some wet and dry while the engine is on the bench, but I'm still putting the new seals in with Permatex to be on the safe side.
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Andy
Looking for info on my truck's history. Are you from Campbell California or nearby. Do you recognise it? ... http://www.thesamba.com/vw/forum/viewtopic.php?t=636786
Last edited by Who.Me? on Mon Apr 10, 2023 1:17 pm; edited 1 time in total |
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busdaddy
Samba Member
Joined: February 12, 2004
Posts: 51144
Location: Surrey B.C. Canada, but thinking of Ukraine
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| Posted: Mon Apr 10, 2023 1:00 pm Post subject: Re: Baked on Permatex |
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Permatex is alcohol based, maybe try soaking it with that?
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PatJr
Samba Member
Joined: August 09, 2010
Posts: 205
Location: earth
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| Posted: Mon Apr 10, 2023 1:18 pm Post subject: Re: Baked on Permatex |
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my reflex
brake cleaner
dunno if it will work, it's just acetone in a spray can
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heimlich
VWNOS.com
Joined: November 20, 2016
Posts: 6609
Location: Houston, Texas
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| Posted: Tue Apr 11, 2023 5:12 pm Post subject: Re: Baked on Permatex |
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Leave it?
Scrape it off?
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modok
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Joined: October 30, 2009
Posts: 26787
Location: Colorado Springs
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| Posted: Tue Apr 11, 2023 5:42 pm Post subject: Re: Baked on Permatex |
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If it works that good, maybe paint the whole thing?  |
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Glenn
Mr. 010
Joined: December 25, 2001
Posts: 76935
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| Posted: Tue Apr 11, 2023 5:44 pm Post subject: Re: Baked on Permatex |
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| modok wrote: |
| If it works that good, maybe paint the whole thing? |
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b-man
Samba Member
Joined: May 20, 2008
Posts: 499
Location: So Cal
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| Posted: Tue Apr 11, 2023 5:50 pm Post subject: Re: Baked on Permatex |
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Note to self: Always clean up spilled paint or sealers quickly before they have a chance to dry.
At this point it’s just something that adds character, don’t let it bother you.
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evanfrucht
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Joined: July 24, 2016
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Location: Laurel Canyon, CA
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| Posted: Tue Apr 11, 2023 7:54 pm Post subject: Re: Baked on Permatex |
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You got baked on what now?
Permatex and heater boxes, sounds like a fumey mix. I'm not surprised. Lol!
I read the title and figured you just sniffed the jar 
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modok
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Joined: October 30, 2009
Posts: 26787
Location: Colorado Springs
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| Posted: Tue Apr 11, 2023 8:05 pm Post subject: Re: Baked on Permatex |
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I had a guy bring back a chevy 350 because it had a CRACK in the side.
Luckily it was just a FINE string of permatex 300, which wiped away with brake-clean and a rag.
Since then I wipe away any excess. |
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Who.Me?
Samba Member
Joined: July 14, 2014
Posts: 2211
Location: UK (South)
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| Posted: Wed Apr 12, 2023 5:48 am Post subject: Re: Baked on Permatex |
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| modok wrote: |
| If it works that good, maybe paint the whole thing? |
True. Probably could have saved a bit by not getting the boxes powdercoated. It's harder than that.
| evanfrucht wrote: |
| You got baked on what now? |
Looks like it's staying put. At least it's not conspicuous.
Thanks all.
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Andy
Looking for info on my truck's history. Are you from Campbell California or nearby. Do you recognise it? ... http://www.thesamba.com/vw/forum/viewtopic.php?t=636786 |
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mark tucker
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Joined: April 08, 2009
Posts: 23937
Location: SHALIMAR ,FLORIDA
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| Posted: Wed Apr 12, 2023 10:59 am Post subject: Re: Baked on Permatex |
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| uppon installing you 1 must be smarter than what your working on as always, 2 move the tube around wiggeling it till it is seated good BEFORE FINISHING TIGHTENING THE HEADS OR RELEASING ALL THE SPRING PRESSURE ON THE TUBES. you can also use the silycone seals, they do last much longer. I usualy make larger seal back up washers and swedge them to the tubes so they donut come off or get lost. VSI shims work for this. I donut remember the #I use .030 or .060, cant remember that either... I have installed tubes and seen light comming through and repositioned the tubes, never had any leeks. |
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