vs 5.0 statesman welsh plug removal trouble

[davo statesman]

Hi am having a hard time getting a welsh plug to move am trying to remove the plug is original factory steel one have put hole in it plug is on drivers side next to engine mount on v8 vs have removed engine mount so far any help???

 

[EYY]

Just try to push it into the block if you can't get hold of it to pull it back out - it won't do any damage down there.

Tapping the new one in may be difficult with limited space but doable. Make sure you don't gouge the block itself when you're tapping the old plug in with a chisel.

To be honest, you should pull the engine out and replace all of the welch plugs - if one's rusted through, the others won't be too far behind. The ones at the rear of the engine can be a real pain and are a trans or engine out job anyway.

 

[davo statesman]

Thanks haven't done one for 20 years and never had this much trouble getting one out must be cause its steel will keep tapping away will get someone else to do the others ta

 

[Not_An_Abba_Fan]

I had a core plug drop into the head on a Falcon X flow and it got pushed through to the water pump and jammed it. Not the same as the block on a Holden V8 though.

I always tap one side and it will spin in the hole, then it's easy to lever out.

 

[davo statesman]

That's what ill try don't want to leave it in the block

 

[rambunctious]

Just try to push it into the block if you can't get hold of it to pull it back out - it won't do any damage down there.

Tapping the new one in may be difficult with limited space but doable. Make sure you don't gouge the block itself when you're tapping the old plug in with a chisel.

To be honest, you should pull the engine out and replace all of the welch plugs - if one's rusted through, the others won't be too far behind. The ones at the rear of the engine can be a real pain and are a trans or engine out job anyway.

Funny enough, the one which has gone is the one which seems to go on most of the 304's.
Not abba has it right, tap one side then lever or locking pliers on the other side, but definately remove it.
Try to find a piece of steel pipe or a large socket on an extension bar for tapping in/refitting the new one, and use a flyshit of gasket goo preferably locktite number 3.

 

[woteva]

As above, tap on one side to 'spin' the plug and remove with vice grips.
Clean the sealing surface with fine Emery paper and add a quick smear of sealant. I have used loctite flange sealer.
Put the new welsh plug in the freezer for an hour or 2 and it will go in a bit easier.
Use a large socket or pipe to aid installation.

 

[EYY]

Pro tip. Don’t use a socket the same size as the plug to install it. Use one slightly smaller so that it distorts a little as you’re tapping it in.

Of course try to remove it - as I mentioned in my post it’s fine to leave the old plug in there IF you can’t get it to spin to pull it out. It won’t do any harm if you push it in though

 

[ringfeder3]

Did my driver's side ones last weekend. Others were fine. Removed d/side mount, unbolted manifold and was able to access from underneath. Used a special tool which looked like a small steel disc (welsh plug size) with an offset rod about 30cm long to bash new plugs in.