KAD 43 water leak

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tico

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Have a water leak from the exhaust manifold/block joint directly over the engine mounting. From past posts it appears that this is not unknown and is often from the sealing ring to the thermostat housing.
I have pretty much removed most of the intervening parts (I'd like to get my hands on the guy that designed it! + who on earth other than VolvoPenta uses plain steel jubilee clips in a marine environment!)
Is there anything I have to watch for when reassembling or any knacks to make it easier? Any tips? any 'must replace' parts ?

Would be a simple job with the engine out, but in situ it's a really tight squeeze and hell to get at some of the nuts/clamps.
 
tico said:
Have a water leak from the exhaust manifold/block joint directly over the engine mounting. From past posts it appears that this is not unknown and is often from the sealing ring to the thermostat housing.
I have pretty much removed most of the intervening parts (I'd like to get my hands on the guy that designed it! + who on earth other than VolvoPenta uses plain steel jubilee clips in a marine environment!)
Is there anything I have to watch for when reassembling or any knacks to make it easier? Any tips? any 'must replace' parts ?

Would be a simple job with the engine out, but in situ it's a really tight squeeze and hell to get at some of the nuts/clamps.
Click to expand...

If you have a few water streaks down that side of the block it's the exhaust manifold to head gaskets and sadly sometimes the head gasket as that's the only place they leak
 
Water streaks down the side of the block, from between the manifold and block. worst at the front directly above the engine mounting bracket, but some further back.
Engine runs smoothly and no sign of any water in oil.
What do you think vp? Manifold gasket, stat/Manifold seal or (horrors) head gasket?
Engine hours 775
Things to watch for?
Respect to VP for working on these!
 
tico said:
Water streaks down the side of the block, from between the manifold and block. worst at the front directly above the engine mounting bracket, but some further back.
Engine runs smoothly and no sign of any water in oil.
What do you think vp? Manifold gasket, stat/Manifold seal or (horrors) head gasket?
Engine hours 775
Things to watch for?
Respect to VP for working on these!
Click to expand...
Manifold gaskets, give me a call and I'll give you a few extra bits
 
Out of curiosity, how much are you losing?

I shouldn't tempt fate, but as we share similar engines (KAD300), I always like to educate myself as much as possible.

Hopefully it's an easy fix.
 
tico said:
Alt started as a cupful/trip, now increased to 1/2 _ 1 litre /day

Thanks VP, will call you tomorrow
Click to expand...

Bummer :(

What confuses me is that you mention the thermostat sealing ring... isin't that on the front of the engine, on top? But then refer to the exhaust manifold... this is on the port side of the engine, right? So what bits have you removed?

Either way hope it's an easy fix for you.
 
Theres a sealing ring that seals the tube between the thermostat housing and the front part of the exhaust manifold.
BTW parts removed so far
Compressor
Heat exchanger
air pipes
expansion bottle
next... turbo
Then the manifold
anyone know someone with 4ft long double jointed arms? (other than VP)
 
You already have things taken apart, but would Radweld have worked? Never used the stuff and wouldn't be inclined to, but it might have sorted the seal issue? Or is it designed more to fix small holes in rads?
 
Radweld- The best selling agent for radiator manufacturers! (speaking from a previous life)
Yes , everything off now, and it looks very much like leaks from the exhaust manifold/block joint as well as from that sealing ring.
Now to put it all back again! Oh deep joy!
Thanks to VP for his advice.
 
The requirements to be a marine engineer are to be a thin midget with strong arms that can survive in 40 degree heat For hours , who is also tolerant of cuts to the hands and bumps to the head.

The patience of a saint also helps.

Sadly I don't qualify under most of the above criteria !
 
jrudge said:
The requirements to be a marine engineer are to be a thin midget with strong arms that can survive in 40 degree heat For hours , who is also tolerant of cuts to the hands and bumps to the head.

The patience of a saint also helps.

Sadly I don't qualify under most of the above criteria !
Click to expand...

Your description perfectly matches me, and as I was a Chief Engineer in the Merchant Navy for 19 years, I can certainly vouch for it's accuracy!! ��
 
jrudge said:
The requirements to be a marine engineer are to be a thin midget with strong arms that can survive in 40 degree heat For hours , who is also tolerant of cuts to the hands and bumps to the head.

The patience of a saint also helps.

Sadly I don't qualify under most of the above criteria !
Click to expand...

Very true .
 
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