valve seat insert removing tool?

Nebraska Kirk · Jun 19, 2014

Is there some special tool made for removing valve seat inserts? I am trying to remove some and am not having any luck. I have removed hardened inserts before by welding a bead around them and they shrink and fall out, but these are cast iron and the welding trick does not work.

az .peapicker · Jun 19, 2014

Good Evening Kirk

What is it on ? Type of Engine.

John in Az.
[email protected]

Earl-IL · Jun 19, 2014

They make a special tool. I had a engine rebuilding shop for 40 yrs. Many times we used a new or good square chisel. Stick it in the seat at about a 45 deg angle & slightly tap the side, corner of that chisel under the btm. inside edge of that seat. Take a shop rag & throw over the chisel and your hand now pop the end of chisel straight down toward the head it should pop the seat out. If you make a nick in the port ,smooth with a die grinder. The dia. of the chisel has to relate to the seat dia. If you don't like the nick in the port and you have a seat cutter you can go a size smaller & cut the seat out.

rustyfarmall · Jun 20, 2014

(quoted from post at 19:40:51 06/19/14) Is there some special tool made for removing valve seat inserts? I am trying to remove some and am not having any luck. I have removed hardened inserts before by welding a bead around them and they shrink and fall out, but these are cast iron and the welding trick does not work.

Are you sure it is an insert? The original seat is part of the head. It has to be cut, or milled out, before an insert can be installed.

ohiojim · Jun 20, 2014

around here they just run a weld bead for about an inch and they fall out..

Nebraska Kirk · Jun 20, 2014

(quoted from post at 23:44:38 06/19/14)

(quoted from post at 19:40:51 06/19/14) Is there some special tool made for removing valve seat inserts? I am trying to remove some and am not having any luck. I have removed hardened inserts before by welding a bead around them and they shrink and fall out, but these are cast iron and the welding trick does not work.

Click to expand...

Are you sure it is an insert? The original seat is part of the head. It has to be cut, or milled out, before an insert can be installed.

Yes, I am sure. I can see the fine line and very slight step where the insert is.

(quoted from post at 05:22:34 06/20/14) around here they just run a weld bead for about an inch and they fall out..

Even on cast iron inserts? I have tried the welding trick on cast iron inserts and it does not work for me.

valve seat insert removing tool?

Nebraska Kirk

Well-known Member

az .peapicker

Member

Earl-IL

Well-known Member

rustyfarmall

Well-known Member

ohiojim

Well-known Member

Nebraska Kirk

Well-known Member

Similar threads