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#1
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My piston is now in the oil pan.
So I bought my svx in May and I love it. It had a slight knock tho along with the auto being blown. So I dismiss the knock (stupidly but I wanted the car) and do a 5 speed conversion (feel free to clap). But driving the other night I downshift into 2nd only bringing the rpm's up to about 3000 maybe 3500.. and ZING. Engine dies. got the engine out of the car and pulled apart. The #1 pistion is in a kazillion pieces in my oil pan. CRAP. Is the SVX engine supposed to be pretty reliable? I bought an engine from JDM exchange for $900.. (it would cost me $1500 at least to fix mine). Under 50k on the new one!
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#2
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I seriously doubt your piston is in the oil pan - maybe metallic bits from the liners, etc. These engines are rock solid when properly maintained. When you buy a used one - you never know what you're getting. -Chike
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"Wise men talk because they have something to say; fools, because they have to say something." - Plato 2013 Cosmic Blue 5spd Evo X GSR 2006 Galaxy Gray 6MT RX-8 (sold) 2006 Steel Gray WRX TR (sold) 1996 Brilliant Red SVX L (sold) |
#3
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It's the piston
It's deffinitely the piston. There's remains of the rings as well and the piston pin clips. I had a local engine rebuilder come and look at it. He was impressed with the damage. Lol
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#4
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I can see pieces from the rings/liners/seals getting down there, but the piston itself is a pretty solid piece of metal. The connecting rod and the crankshaft would have to get out of its way, before it could drop into the oil pan. If you can, take pics of the carnage! -Chike
__________________
"Wise men talk because they have something to say; fools, because they have to say something." - Plato 2013 Cosmic Blue 5spd Evo X GSR 2006 Galaxy Gray 6MT RX-8 (sold) 2006 Steel Gray WRX TR (sold) 1996 Brilliant Red SVX L (sold) |
#5
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Will do
Sure I'll take some pics... Engine guy said it was the piston. It's in really small pieces lol. I'll see what else I can come up with. But I seem to recognize the piston skirt as well as the bottom (there's a groove in some pieces where the rings go. I dunno.
I'll take a picture when I get the time.. busy busy Paul |
#6
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Quote:
-Chike
__________________
"Wise men talk because they have something to say; fools, because they have to say something." - Plato 2013 Cosmic Blue 5spd Evo X GSR 2006 Galaxy Gray 6MT RX-8 (sold) 2006 Steel Gray WRX TR (sold) 1996 Brilliant Red SVX L (sold) |
#7
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Well I bought the new motor from JDM exchange. The car I don't really know the history of owners. That's what my engine guy said... said it was probably amateur nos or someone raced the car.
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#8
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Looks like someone Subafreak'd that engine
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David B. SVXipedia @ SVX-IW.COM -- SVX Information Warehouse 2.0 coming...eventually! Ebony 1992 SVX LS-L 5 spd Koni/GC Stebro 187k miles RIP (Rust In Pieces) 1993 SVX 5 spd Koni/GC Stebro Polyurethane bushings still available! |
#9
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Motors Sources
I used a different approach for an engine. I paid $600 for a car that cannot be titled to get a good motor. Well, got all of the other parts too, including a good tranny. Of course it has more than 50K miles on it, but the motors generally last forever unless abused or not maintained.
Lee
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SVXx2 92 SVX LS-L Silver 92 SVX LS-L Burgundy (structurally challenged with 2792 miles) 96 SVX LSi Red 92 SVX LS Pearl (Parts) 01 F150 4X4 Red (+6 with other members of the family) FREEDOM IS NOT FREE |
#10
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If I read the first post correctly, the JDM motor he bought with less than 50k miles on it is to replace the one that just went "kaboom"...
I agree that the previous owner must have been running nitrous and put a hurt on the engine, ala SubaFreak, prior to you buying the car... -Bill
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Retired NASA Rocket Scientist Most famous NASA "Child" - OSIRIS-REx delivered samples from asteroid BENNU to Earth in Sept. 2023 Center Network Member #989 '92 Fully caged, 5 speed, waiting for its fully built EG33 '92 "Test Mule", 4:44 Auto, JDM 4:44 Rear Diff with Mech LSD, Tuned headers, Full one-off suspension '92(?) Laguna, 6 spd and other stuff (still at OT's place) My Locker |
#11
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or you had a clogged injector and were leaning out that cylinder causing detonation...
Tom |
#12
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I blew up a piston on a 250cc two-stroke motor once. It took me forever to clean it out of the crankcase. The dang things are aluminum so a magnet is only good for finding pieces of the rings. It's amazing how many thousands of small parts they break up into. Fortunately, my engine was rebuildable, but the piston alone was a couple hundred bucks. You can buy a whole set for a domestic V8 for less than that.
Good luck with the mess. It sounds like it's beyond repair. Is it? |
#13
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Quote:
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92 Honda CBR 600 95 Miata |
#14
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Quote:
-Bill
__________________
Retired NASA Rocket Scientist Most famous NASA "Child" - OSIRIS-REx delivered samples from asteroid BENNU to Earth in Sept. 2023 Center Network Member #989 '92 Fully caged, 5 speed, waiting for its fully built EG33 '92 "Test Mule", 4:44 Auto, JDM 4:44 Rear Diff with Mech LSD, Tuned headers, Full one-off suspension '92(?) Laguna, 6 spd and other stuff (still at OT's place) My Locker |
#15
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Detonation?
Could detonation really blow a piston apart like that? I mean the engine had a mean knock before she blew... I don't know. Explain detonation to me?
Paul |
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