MSM engine suddenly broke!
#1
MSM engine suddenly broke!
Ok, first of all my car used an european 1996 model 1.6 l that had 90 whp. As we all know, not having turbo on a miata is really boring. And especially after Inglar took me out for a spin in his previous car(he had an MSM with the Big enchilada), I was on fire. Only 2 months later I found an MSM engine on ebay with the transmission on, turbo, downpipe and wire harness for only 3000$. And it had only traveled 33 000 miles. Bought the Hydra 2.6 aswell too to make room for further upgrades(soon garret 3071 on vvt engine).
But, 3 months ago something wierd happened. I was at 3000 rpm and changed gear, went straigt up to 4500 and WOT. And suddenly, BAM! I heard very loud knock that changed with rpm. I guessed a rod, but I was in the middle of nowhere, and the knock sound stopped so I went driving the rest of the way home.
Just abou a mile before I was home I heard a bigger bang and the oil pressure went down to 0. Stopped the car asap and opened the engine bay. I quickly saw that the rod had been shot out through the block and the baffle pan making the piston move freely inside the cylinder.
Does anyone have any ideas of what could of have happened? And, is it possible that the pistons have destroyed one of my rods?
But, 3 months ago something wierd happened. I was at 3000 rpm and changed gear, went straigt up to 4500 and WOT. And suddenly, BAM! I heard very loud knock that changed with rpm. I guessed a rod, but I was in the middle of nowhere, and the knock sound stopped so I went driving the rest of the way home.
Just abou a mile before I was home I heard a bigger bang and the oil pressure went down to 0. Stopped the car asap and opened the engine bay. I quickly saw that the rod had been shot out through the block and the baffle pan making the piston move freely inside the cylinder.
Does anyone have any ideas of what could of have happened? And, is it possible that the pistons have destroyed one of my rods?
#2
Yes. You do too:
Why? Not sure. How hard were you pushing it? boost? timing? afr?
You need to post more details.
As for rods: definitely replace them with stronger ones. Even if they're in ok condition. Stock miata rods are one of the weakest links in the powertrain, no reason not to upgrade them.
I quickly saw that the rod had been shot out through the block and the baffle pan making the piston move freely inside the cylinder.
You need to post more details.
As for rods: definitely replace them with stronger ones. Even if they're in ok condition. Stock miata rods are one of the weakest links in the powertrain, no reason not to upgrade them.
#9
Of course I was forgetting some details.
Turbo: stock msm turbo with original DP
catback: some random 2.5 "
Intake: Custom made.
Map: FM's map. Stock timing table
Pressure: 14 psi.
Fuel system: Rebuilt from retourless to retour.
I was driving a while ago with some knock on high rpm, but I got it adjusted quick.
Could the valves have been damaged? They looked fine too me. Btw, the block itself is totally broken. The rod was located in cylinder number 2 from the radiator.
Turbo: stock msm turbo with original DP
catback: some random 2.5 "
Intake: Custom made.
Map: FM's map. Stock timing table
Pressure: 14 psi.
Fuel system: Rebuilt from retourless to retour.
I was driving a while ago with some knock on high rpm, but I got it adjusted quick.
Could the valves have been damaged? They looked fine too me. Btw, the block itself is totally broken. The rod was located in cylinder number 2 from the radiator.
#10
Former Vendor
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What did the wideband say?
The valves could be damaged, they could be fine. Depends on whether the piston hit them or not.
It's obvious that you threw a rod, but in order to give you any more info than that we need to see the inside of the motor. Pull it out, pull the pan/mbsp, and snap some photos of the big end of the rod, condition of the rod hardware, etc.
The valves could be damaged, they could be fine. Depends on whether the piston hit them or not.
It's obvious that you threw a rod, but in order to give you any more info than that we need to see the inside of the motor. Pull it out, pull the pan/mbsp, and snap some photos of the big end of the rod, condition of the rod hardware, etc.
#12
Former Vendor
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People who use boost levels to describe the capability of the stock motor do a huge disservice to this community. Not directed at you, just people in general.
#13
The stock MSM turbo is very small, I don't know how many whp that should be, but not more than 200. I had fuel cut a couple of times so I
I guess that there might be valve damage then, because there's a very big chance for that the rod would have rotated and shot it up, and there are very small marks on the exhaust valves.
I will pull the block apart in about 4 weeks(got a broken wrist atm) and show you more leet photos
I guess that there might be valve damage then, because there's a very big chance for that the rod would have rotated and shot it up, and there are very small marks on the exhaust valves.
I will pull the block apart in about 4 weeks(got a broken wrist atm) and show you more leet photos
#17
Cpt. Slow
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Is it possible the last few thousand miles were extremely abusive and ended in a crash? Might be why the engine was being sold. An aquantience had nitrous oxide dumped in the tank and raced until it exploded when his accord was stolen.