What went in this hole in my M113 V8 CLK Exhaust ?

[tjamesbo]

Exhaust suddenly starts blowing and i found this hole ,something was here a blanking plug perhaps ? It doesnt look threaded but hard to see inside
was it a facility for a sensor on american / export models and was blanked off for uk ?
engine is running fine no faults on the dash computer no loose wires or a sensor hanging loose
best way to restore it / blank it
mercedes blanking plug ???
not sure if welder can get in there
bolt and washer glued in with gun gum
Any further suggestions welcome
Boyd

 

[ajlsl600]

Assuming nothin meant to be in there. Measure it find nearest tap size. Tap it fit same thread bolt with copper washer and coppers lip. In case bolt needs come out again

 

[tjamesbo]

yes someone on the other forum had the same happen says hole was for a lambda sensor on US spec Cars they had a cap welded on but i like your idea i'll look to check i can get a tap in there thanks

 

[LostKiwi]

From memory M18x1.5.

Quick solution is get a bolt. Cut a slot in the thread (lengthwise) and tighten up. If it still leaks find someone friendly with a welder. Two minutes later it'll never trouble you again.

 

[star]

Looks like the bolt hole for the heat shield that’s missing. I’d be looking at the joint being the problem.

 

[mattkh]

Cut a slot in the thread (lengthwise)

What will this aid..??

 

[LostKiwi]

What will this aid..??

It turns a bolt into a cheap single use tap to help chase the thread.
The slot helps clear any swarf and prevent jamming of the bolt.

 

[ajlsl600]

Ah we on same page often de case here I even have the locals doing it instead of ussual choice of close fitting(not always) and various size hammer!!!

 

[ajlsl600]

I use 1mm cutting disc to cut 2 slots along bolt length at 180 degrees if fitting not very hard and one takes time I find this usually does job esp if bolt decent quality

 

[LostKiwi]

Yep pretty much my method too though usually I use a Dremel so finer slot. I guess I'm more used to smaller bolts than you.

 

[ajlsl600]

Somat like that.....