I really dont know but unfortunally the last time i saw my tachometer working last night was at 7000+rpms....
On my way home last night i wanted to take a curb faster than i've ever did...
so i was in 4th gear and using the heal and toe technique i shifted and brake into 3rd (6300 rpms) to prepare myself and the car to have the right balance take the curb (at 4+rpm as usuall for me)... guess what??? my engine sounded lovely up there... i dont know WHY ON EARTH i wanted to take the corner faster with out getting understeer.... so i tried to shift to 2nd (without heal and toe) before i shifted i felt a "Deja vu"... and then i shifted to 2nd... and when i heard the engine screaming like never before i quickly put clutch down but it was too late.... i saw the revs coming down and the engine went dead... i was frozen and i stoped when the car had no more speed... i was still frozen for about 10 mins. in the drivers seat because i knew i did broke the engine...
well i got out... looked back and didnt saw no oil on the street... the belt is ok, i got a look at the throttle body and saw a small mark like something hitted the butterfly, me and my friends tried to move the car the 5th to see if the engine was "locked"... it moved a bit but sounded strange... i tried to turned on for less than a second to hear how bad it was... it sounded like hell was breaking loose in there... it seems like a valve met a piston or a broken follower... i cant say untill i get the engine apart...
this is the first time this has happend to me and honestly it doesnt feel good... so i think is true what people say "if it happend to you it can happen to me"... the last thing i could think of breaking an engine was this... but what's done its done...
At least i got a C20XE slowly getting rebuild... the idea was to turn it into a LET but now im forced to do swap it as a XE...
Efrain.
Last edited by Efratech on Fri Jul 02, 2004 1:00 am, edited 1 time in total.
'88 Pontiac Lemans GTE - 2.0 16v XE - fully programable ECU, Custom made intake manifold and other bits.
146.6WHP/135lb.ft - 14.81@94mph
I'm sorry to hear what happend to your car. I blew my engine on my '95 Ford Contour with mods. It was also stupid... I was doing a burn out in first and weren't looking at either one of the tachs in my car, over revved it and it died. It was leaking oil like hell after that. I locked it up good. I know how it feels... and that is how I came up with buying a Daewoo (cause I needed a car and didn't want to wait or spend any more money into that Ford).
A bit off topic, but what exactly is the heal and toe technique (I drive 5spd manual as well)?
Efrain...looks like you have experienced the 'floating' valve or broken follower. This is unfortunately a weak point of the head design, especially when it comes to engines with higher mileage. A floating valve occurs when the spring does not bring the valve back up quick enough @high revs. At this moment, a follower slides off the valve or the lifter...then a milisecond later the camshaft lobe comes down trying to push the valve open...and the damage occurs.
I did exactly the same thing (I am assuming this is what have happened to your engine) last summer, while passing a BMW 325is on a highway (and the driver did not want me to pass him). The noise you hear is most likely the result of the entire valve guide pushed down. As a result, the engine may no longer be non-interfering. Hopefully you did not crack the cylinder head as I did. This is what my head looked like after the damage.
You can clearly see the follower on the side...and the cracked lifter housing.
And another close-up
The camshaft was also damaged
If you are lucky, and the cylinder head is not cracked, you will most likely need a new valve and a valve-guide.
I strongly recommend to install new lifters/springs if you have your cylinder head off. This will cost a few more bucks, but will save you trouble on a long run.
Ouch.... sorry to hear about your car .... good thing you have the C20XE project going... on the bright side your C20XE will have way more power than your current 8V
i took the valve cover off this morning and saw 1 broken follower, 2 followers snapped and 2 springs snapped...
i was able to get the car to the workshop to get the head out tomorrow and see if there's any more damage (pistons/valves)
ill try to get my hands on a digicam tomorrow and take some pics...
from what i was able to see is exactly the same thing on the pictures that Gsiturbo posted... but i dont have the cracked head or damage on the cam (at least from what i saw)
Erfinder... its a C20NZ... ill let you know if i need it but if there's any damage on the head it be better swapping the C20XE in and selling the C20NZ block...
Ill keep you guys updated...
Efrain.
'88 Pontiac Lemans GTE - 2.0 16v XE - fully programable ECU, Custom made intake manifold and other bits.
146.6WHP/135lb.ft - 14.81@94mph
3 followers broken (admision) 1 follower is missing i bet a part of it is down in the oil pan (sump)... 2 valves seems to be bent... its really a mess... the cam its ok...
the pistons are OK but the valves are marked on them...
ill post some pictures tonight...
'88 Pontiac Lemans GTE - 2.0 16v XE - fully programable ECU, Custom made intake manifold and other bits.
146.6WHP/135lb.ft - 14.81@94mph
Wolf-Spirit wrote:on rear traction cars its used to get it to drift
front wheel its done to keep the rpm high when shifting/braking and tacking a curve fast
i bet a part of it is down in the oil pan (sump)... 2 valves seems to be bent... its really a mess... the cam its ok...
