Freeze/Core Plug Question

[61farnham]

Hi all,

 

Finally got some time to tackle the leaky core plug in the rear of the block on my P15 and got everything stripped out by the end of the day.  I was wondering if the smaller plug to the right of the large leaky one in the pic below is in a cooling passage or oil gallery. I'll replace them all while i'm in there just curious before I dug them out.

 

Thanks.......... Simon.

[Merle Coggins]

I believe the smaller one to the right is the end of the camshaft bore. 

[Branded]

40 minutes ago, Merle Coggins said:

I believe the smaller one to the right is the end of the camshaft bore. 

 

I believe you’re correct

[BigDaddyO]

I believe that.

 

[61farnham]

Thanks to all the believers, appreciate your input.

[Frank Elder]

2 freeze plugs recommended in that hole......let some other freeze plug pop out where you can get to it easier.

[61farnham]

Thanks for the recommendation I was planning on using a smear of sealant with the new plugs but two plugs sounds even better, definitely not an easy place to get too. 

[Plymouthy Adams]

these are available in brass and in stainless steel.... hardly a need to double up....Hubbard is one known brand name.....

Edited March 26, 2018 by Plymouthy Adams

[Frank Elder]

It gives me peace of mind, couldn't careless about the composition of the material in said plug. That being said.....one may do to their car as they please, following my advice is certainly up to them.

[Plymouthy Adams]

20 minutes ago, Frank Elder said:

It gives me peace of mind, couldn't careless about the composition of the material in said plug. That being said.....one may do to their car as they please, following my advice is certainly up to them.

 

what you say is true, one can do as they wish....but I got to admit at looking at the two blocks I have here for easy access to these locations...there is not enough lip remaining for a second welch plug to effectively seat and seal once one is installed....I can only guess you getting very thin welch plugs for use...

[Frank Elder]

Been working fine for 16 years now.

[61farnham]

Plan on using brass ones, still able source imperial sizes over here. 

 

Thanks for everyone's help.

[Plymouthy Adams]

yes England is chocked full of these 1 5/8 dish style in stainless, brass and steel.....

[Andydodge]

Frank..........not trying to upset the applecart but how do you instal 2 welch plugs?.......I would have thought that once you install one by dimpling the centre there would not be enough room around the edge for the 2nd welch plug to properly grip and by firmly tapping the 2nd one in the centre you may loosen the 1st ones grip into the edge of the hole.............happy to be told I'm wrong tho' just have never heard of using 2 plugs.........here in oz I only ever replace any welch plugs with brass plugs, mild steel is a false economy...............regards, andyd    

[Dodgeb4ya]

I just removed these two factory doubled up brass soft plugs from a flat head....

[Andydodge]

Dodgeb4ya..........well buggar me!!..........lol................I had never seen a doubled up welch plug.............I stand corrected and its good to learn & see something new every day........thanks.............andyd...............

[kencombs]

On 3/27/2018 at 12:52 AM, Andydodge said:

Frank..........not trying to upset the applecart but how do you instal 2 welch plugs?.......I would have thought that once you install one by dimpling the centre there would not be enough room around the edge for the 2nd welch plug to properly grip and by firmly tapping the 2nd one in the centre you may loosen the 1st ones grip into the edge of the hole.............happy to be told I'm wrong tho' just have never heard of using 2 plugs.........here in oz I only ever replace any welch plugs with brass plugs, mild steel is a false economy...............regards, andyd    

That's probably true for cup type plugs as they are much deeper.  flat or those with no deep lip on the edge you probably could.

 

Well, I just read further and see that is the case.

[Frank Elder]

1 hour ago, kencombs said:

That's probably true for cup type plugs as they are much deeper.  flat or those with no deep lip on the edge you probably could.

 

Well, I just read further and see that is the case.

Thin to win.......

[The Oil Soup]

Seeing is believing!