Big time blow out!
#1
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Big time blow out!
<center><img src="http://pictureposter.audiworld.com/55813/cyl_head_1.jpg"></center><p>Got the 2am call Sunday morning..."Dude! My car is facked! I'm 40 miles from home and no cab will pick me up"
Car is a 1990 200 10vt MC2 fwd auto
Right. Blew a coolant hose all to hell, car overheated and died within half a mile. Will not restart.
Let's do a pre-dawn compt-test! Pulled the plugs and coolant shot out of #4 & 5 like Old Faithful on his birthday. Nice. We'll deal with this tomorrow dude.
Towed her to under the shade tree and if the pic has loaded it's bad bad bad. Big chunks missing around the ex valves, not to mention hunks of the valves themselves and something I have never seen before...an eroded path from the CC to the coolant jacket through solid metal 8mm deep! How the heck does that happen???
I know he ran with low octane gas (87 RON) for a few tankfuls so I can see hunks exiting thru the ex valves as he pinged it with no mercy but that eroded path there I figured was worthy of posting up.
Pistons and bores are all fine, turbo has a bit of play but all the fins are intact.
Think I should JB weld this puppy?
Car is a 1990 200 10vt MC2 fwd auto
Right. Blew a coolant hose all to hell, car overheated and died within half a mile. Will not restart.
Let's do a pre-dawn compt-test! Pulled the plugs and coolant shot out of #4 & 5 like Old Faithful on his birthday. Nice. We'll deal with this tomorrow dude.
Towed her to under the shade tree and if the pic has loaded it's bad bad bad. Big chunks missing around the ex valves, not to mention hunks of the valves themselves and something I have never seen before...an eroded path from the CC to the coolant jacket through solid metal 8mm deep! How the heck does that happen???
I know he ran with low octane gas (87 RON) for a few tankfuls so I can see hunks exiting thru the ex valves as he pinged it with no mercy but that eroded path there I figured was worthy of posting up.
Pistons and bores are all fine, turbo has a bit of play but all the fins are intact.
Think I should JB weld this puppy?
#4
Re: Big time blow out!
Wow looks horrible! Now the Vultures circle,
I could use the distributor! Do you really want to spend that kinda money for a FWD! If it were a quattro...
Thanks
Ron
I could use the distributor! Do you really want to spend that kinda money for a FWD! If it were a quattro...
Thanks
Ron
#5
Time for a replacement head...........
what you have left looks too bad to repair, plus your valves are shot, and with over heating your head is warped. I like JB weld, but you have way too much head damage for JB weld to fix.
Your 8 mm whole reminds me of my '91 Subaru problem. It blew out the head gasket at a spot from the CC to the water jacket. It would over heat because exhaust gas was mixing with the coolant. It too created a jagged eroded hole where the flame from combustion chamber created a hot spot that ate a hole in the alloy head. It probably took quite a number of miles (maybe months) for this to happen. I was told by a mechanic that blown head gaskets will do this to alloy heads. You may already have had an over heating engine long before the coolant hose burst.
Your 8 mm whole reminds me of my '91 Subaru problem. It blew out the head gasket at a spot from the CC to the water jacket. It would over heat because exhaust gas was mixing with the coolant. It too created a jagged eroded hole where the flame from combustion chamber created a hot spot that ate a hole in the alloy head. It probably took quite a number of miles (maybe months) for this to happen. I was told by a mechanic that blown head gaskets will do this to alloy heads. You may already have had an over heating engine long before the coolant hose burst.
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#8
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I've got a spare head, the JB weld thing was a bit of light humour.."Worst Head Ever!"
<center><img src="http://pictureposter.audiworld.com/55813/cyl_head_2.jpg"></center><p>Really interested in feedback on that erosion issue, thanks Rooster.
Car is minty so no probs putting a few hundred bucks into putting her back on the road.
Car is minty so no probs putting a few hundred bucks into putting her back on the road.