what to do with pinholes around weld?

Carpe Discus · 12-10-07, 03:44 PM

I got a patch welded above my fj60's tailgate. I need to touch it up, prime, skim coat with filler, etc--but the weld has small holes. I have pics, but not with me. It was done pretty well in that there was little to no warping, but there's some small holes, probably no more than 1mm in diameter. Maybe 5 or so of them.

How do I make sure there's no rust in the holes, and how do I seal these, preferably without further welding? I don't really want to take it into the welder and wait again.

And no, I'm not going to buy a welder at the moment. Fun, but I don't have the time or space.

Wile E Coyote · 12-10-07, 06:46 PM

IF the pin holes are 1mm or so, any skim of filler or even a quality glaze (Evercoat) would fill just fine. To abate any rust, use one of the many steel prep solutions containing phosphate, Eastwood, Zerorust's stuff, and even generic phos from a hardware store will all fit your needs.

My 0.02

brew8 · 12-10-07, 09:49 PM

I would not leave them unless you have a way to treat them and seal them on both sides, I would weld them anyway, they will be back in a year or two bubbling the paint. I know it's a PITA but do it anyway, Larry

kb3gun · 12-12-07, 07:12 PM

You could always try lead.

cruiser88 · 12-16-07, 11:17 AM

Quote:

Originally Posted by kb3gun

You could always try lead.

X2

brownbear · 12-16-07, 01:26 PM

light sand blasting on both sides of the weld. Then clean with POR-15 metal ready, then use POr-15 over the area. Then after it dries lightly scuff it. Then use the POR-15 compatible filler. After topcoat with a primer and colour.

That is how I did all my welds on my 60.

Dave-T · 12-30-07, 01:05 AM

My solution has always been to fill em with paint!

FineWynsFJ40 · 01-05-08, 03:27 PM

Cut off the fender, then the fender won't rust.

Permatex makes an anti-rust converter and protector, brush on, then lightly sand on topside, fill with body filler then paint. Underside coat with whatever you want to.

Brian

bsmith123 · 01-21-08, 12:31 AM

One site on welding body panels recommended using JB Weld having seen it used to seal holes in blocks I think it would stick for ever and it can be sanded drilled just like metal which is an advantage

chappysfj40 · 01-22-08, 11:27 AM

i agree with wild e coyote run with it,

12-10-07, 03:44 PM	#1
Carpe Discus IH8MUD Junior Join Date: Aug 2004 Location: San Diego, CA Posts: 172	what to do with pinholes around weld? I got a patch welded above my fj60's tailgate. I need to touch it up, prime, skim coat with filler, etc--but the weld has small holes. I have pics, but not with me. It was done pretty well in that there was little to no warping, but there's some small holes, probably no more than 1mm in diameter. Maybe 5 or so of them. How do I make sure there's no rust in the holes, and how do I seal these, preferably without further welding? I don't really want to take it into the welder and wait again. And no, I'm not going to buy a welder at the moment. Fun, but I don't have the time or space.

12-10-07, 06:46 PM	#2
Wile E Coyote IH8MUD Lifer Join Date: Sep 2005 Location: Lake Havasu and Kingman, AZ Posts: 1,150	IF the pin holes are 1mm or so, any skim of filler or even a quality glaze (Evercoat) would fill just fine. To abate any rust, use one of the many steel prep solutions containing phosphate, Eastwood, Zerorust's stuff, and even generic phos from a hardware store will all fit your needs. My 0.02 __________________ ="Are you gonna sit there on that friggin computer all day or what?" The desert dwellin, roadrunner chasin, soooper-genius! '90 FJ 62, '08 Scion head unit, chopped quarters and rockers, bedlined exterior, and mostly stock. My soft wheeler and DD. '85 Dodge Ramcharger a little built, and a little beat. My hard wheeler.

12-10-07, 09:49 PM	#3
brew8 IH8MUD Addict Join Date: Apr 2004 TLCA# 7165 Posts: 747	I would not leave them unless you have a way to treat them and seal them on both sides, I would weld them anyway, they will be back in a year or two bubbling the paint. I know it's a PITA but do it anyway, Larry __________________ Larry Brewster, TLCA 7165, Billings, MT

12-12-07, 07:12 PM	#4
kb3gun IH8MUD Regular Join Date: Aug 2006 Location: Somerset, PA TLCA# 17295 Posts: 240	You could always try lead. __________________ Bill Somerset, PA USA 2007 FJ Cruiser 1966 FJ40 (Website Link:New Project) (on Mud: updated more often) Proud member of ALCA!

12-16-07, 01:26 PM	#6
brownbear Mod in Hibernation Join Date: Sep 2004 Location: Where diesels purr and turbos whine TLCA# 15584 Posts: 6,253	light sand blasting on both sides of the weld. Then clean with POR-15 metal ready, then use POr-15 over the area. Then after it dries lightly scuff it. Then use the POR-15 compatible filler. After topcoat with a primer and colour. That is how I did all my welds on my 60. __________________ -84 BJ60, Finally on the FN road! -91 FJ80, wife's ride Iron Butt award winner of the Cruise Moab 08 !

12-30-07, 01:05 AM	#7
Dave-T IH8MUD Lifer Join Date: Oct 2006 Location: Oakhurst CA TLCA# 16951 Posts: 1,415	My solution has always been to fill em with paint! __________________ 1984 FJ60---Hi-perf 2F with other goodies 1978 Hilux---Dirty old man truck 1994 Honda XR600R 2003 Polaris RMK 800 (@)==Toyota==(@) <----- 60's rule! Last edited by Dave-T; 01-05-08 at 09:40 PM.

01-05-08, 03:27 PM	#8
FineWynsFJ40 FineWynsFJ55 Join Date: Jan 2005 Location: West Michigan Posts: 671	Cut off the fender, then the fender won't rust. Permatex makes an anti-rust converter and protector, brush on, then lightly sand on topside, fill with body filler then paint. Underside coat with whatever you want to. Brian __________________ ~ Two paths diverged in the woods, and I, I engaged my front axle and took the path less travelled ~ 1974 FJ40: Pandora's Box 1970 FJ55: Iron Pig

01-21-08, 12:31 AM	#9
bsmith123 IH8MUD Addict Join Date: Oct 2007 Location: panhandle florida Posts: 814	JB weld One site on welding body panels recommended using JB Weld having seen it used to seal holes in blocks I think it would stick for ever and it can be sanded drilled just like metal which is an advantage __________________ B Smith123 Chaos, panic, & disorder - my work here is done. The easy way ain't cheap and the cheap way ain't easy!!! 71 FJ frame off build "UGLY BETTY" 33 in BFGs, 4 inch HFS lift, Durabak lined tub, and a soft top on the way!

01-22-08, 11:27 AM	#10
chappysfj40 IH8MUD Regular Join Date: Mar 2004 Location: PORT HUENEME , CA TLCA# 9188 Posts: 483	i agree with wild e coyote run with it, __________________ - Iam home now from the SUCK !!!!!!! VJ60 700R4 33's 203 doubler, ARB's 4.56, OME and just a awesome truck!!!!!!!!!! - RUBITHON 2008 TESTED GOD ASKED FOR 10 DAYS TO CREATE EARTH, CHUCK NORRIS GAVE HIM 7..

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