Water leak.

[jpee]

I have a small water leak which I can't trace.going to try an additive see if it will seal it. Any recommendations?

[kevtherev]

Hmm you might be opening a can of worms with the leak fix.
Spend some time feeling around the joints for wetness
I will admit they are hard to spot

How much coolant is being lost and over what time

[muttleypup]

I'd agree with that, far better to find out where the leak is and then deal with it. As far as I am aware, the newer and more efficient additives (K-Seal for instance) don't work on plastic or rubber components only metal so you could be throwing money away anyway.
IF it does turn out to be a small hole in the radiator then K-Seal works very well, anything else and i'd be fixing it properly.

[jpee]

Cheers guys. Checked all main joints replaced couple of pipes that were obviously leaking water pump to r hand cylinder head and water pump pipe behind pulleys. Got an obvious sweat somewhere. Constant drop from bottom of engine. About 1/4 tank over a week. Will keep searching.

[jpee]

Leak seems to be coming from a small round recess behind offside pushrod tubes. Will try post pics later. But any ideas welcome meantime
Cheers.

[jpee]

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[Oldiebut goodie]

Core plug by the look of it.

[kevtherev]

Yes
I agree core plug
They are available.
But it's a tricky job

[Mr Bean]

Just out of interest:
As a youngster I drove a what was a Frod 1,100 cc side valv engined van with what was called a Shooting brake body similar to the ones seen on th Morris Minor.
It suffered from periodic bouts of slow water leaks which I could never quite fix. Then one day I boiled it over on the way to work where I refilled it with water from the River Lea next to my workplace. As I decanted the river water into the radiator I noticed millions of little wriggly wormy things in the water but carried on anyway. To my surprise this cured the leaks so I made a point of topping up with fresh(?) River Lea water every time.
I can only imagine that the leaks were sealed with weeny little dead bodies which became jammed in the leaks.
I believe that this is a similar action to that product which we used to call S..t stick which were like sausage shaped bars with a consistency of Oxo Cubes which one crumbled up before putting in radiator. Anyone remember them?

CS