I really f#$ked up...

[Rinmax]

If it was a valve it would have been engine would have dropped a cylinder while running or backfiring. If its a Conrod then it's going to have a loss of compression in one of the cylinders and be out of balance.

If you have cracked a piston like I have recently done then it'll have little compression loss and balance wont be to bad, but make some aweful noises sharp bits being run up and down the bore.

It's hard to tell from here, I would like to hear it for myself before making too many guesses.

[river]

Hi,

Re-reading this thread...... it appears you were racing???? As mentioned, how fast were you going to be changing up into 4th gear? On a suburban or city street?

The forums explicity state that we don't condone street-racing, so I suggest that you edit your first post to remove those parts that infer you were racing.

It will only be a matter of time before an admin/mod sees this thread and will delete it or lock it, which won't help you get the answers you need.

And, speaking of answers, all we can currently do is guess to the problem. You will need to look at the engine in more detail to determine what happened and then ask more relevant questions if you require further assistance.

seeyuzz
river

[shelldrake]

I understand river. Just clarifying september squalls "guess". I acted immaturely and have learnt my lesson. First post edited...

[allencr]

overrevved = valve float = bent exhaust valve on an interference engine, and non-interference if high enough.

[river]

Hi,

No wukers. I'd hate to see a good bloke like you get slammed. When you check the engine let us know what you find, or ask questions and we'll do our best to offer advice.

seeyuzz
river

[Turdinator]

It was bad luck Ed. Shit happens. Don't beat yourself up over it. It'll get fixed and you'll forget this ever happened.

[merc-blue]

i got spare parts everywere for these so LMK if you need anything

[Vios-GT_07]

i hate to say this but if you were pressing your freshly built motor this hard.. i'd say u were asking for it.. run it in first mate.. give it a nice and easy go to get it going... my new motor was run in for the first 10,000 kms.( yea coz i pampered it but abused it slowly)... it was 10,000 kms b4 it saw the red-line.. but even then i seldom push it that hard unless i have to prove a point i.e. competition (the legal ones)

[jonra23]

It is unlikely to be a bent rod on an overev, conrod damge from an overev is normaly pretty fatal.
Most likely valve float induced damage, what sort of valve lash adjustment do you have? if shim type may have spat a shim.

Compression/leakdown test as everyone has said.

good luck

regards
jon

[sleepin22]

i hate to say this but if you were pressing your freshly built motor this hard.. i'd say u were asking for it.. run it in first mate.. give it a nice and easy go to get it going... my new motor was run in for the first 10,000 kms.( yea coz i pampered it but abused it slowly)... it was 10,000 kms b4 it saw the red-line.. but even then i seldom push it that hard unless i have to prove a point i.e. competition (the legal ones)

Everybody has their own interpretation of running in a motor. From new cars to old its all different. push it a little, dont push it at all, push it fromt he start, Be it 10K or be it 1K, Eddie had done what he was told and thought was right up to this point. Ed got caught in the moment like all of us have at one time(minimum). He is man enough to admit fault and learn a lesson. He comes here for advice from his brothers. Not one of you can say that u have never pushed a vehicle that bit too far and then thought "i better not do that". At that point you were lucky to escape damage. Eddie has been unlucky inn this situation so lets forget about how it happened. Stop telling him what he should or shouldn't have done, because he knows now. Lets just do what we can to help him get happy again.

G.

[sleepin22]

he doesn't need a thread full of dad's, he needs helpful mates.

[Rinmax]

Spot on Sleepin22, it's happened and I'm sure we all want to help out.

Example of running in;
I built my 3TG hybrid back to a modified spec and ran it in to what those around me told me. This was to put 1k of Km's on the engine without high rev while trying to "load" the engine and make it work hard in the lower rev's. Like lowish revs uphill and engine braking. This all worked fine, and the engine felt fantastic towards the end of this "test period". I then dyno'd the car and got the numbers I was looking for, and the car performed smoothly while it did it. Three days later had it out at Winton raceway and it went pop after a handful of laps, we later found it was a piston that had let go. Now before you claim faulty part, it was the same spec as the ones that came out of the engine, and this package had some 4-5 years of competition prior. In my mind "running in" an engine doesn't make it unbreakable, just means it "may" last longer depending on how it's treated and maintained.

Sometime you are just unlucky and problems arise. Luckly I had the means move on and get into fixing it with some help from others. This is what shelldrake needs now, and by reading this tread he too has lots of people willing to help out.

The sooner the Celica is back out on the road the better.

[-NiCkeL-]

I did this to my old motor. I know what it feels like dude, don't worry.

I'm guessing a bent value or similar, you might be lucky and get out of it cheaply. Let us know what the outcome is - i'd come over tommorow, but i'm flat out this weekend.

[sleepin22]

Eddie: I know its tough with cash flow but when you have spent so much time effort and money on rebuilding your car, sometimes you just have to bite the bullit and take it to a reputable workshop to do things like your engine. It's all good getting help and advice from others and doing it all at home, but at the end of the day if something goes wrong like this, you end up holding your own dick if you know what I mean. There is no one you can go back to and say "look what happened". It's the one thing I dont skimp on. I do what I can myself and with help from others but when so much money has been spent I would never take a chance on the most important things. Its just my way of thinking its up to you whether u want to take it on board or not.

EG: I had a custom aluminium radiator made up for my conversion by PWR. It was running fine for a few months but one day one of the radiator tanks let go and gashed out all the coolant. I was not aware of it until I saw my temp gauge sky rocket, potentially cooking my engine. I took it back to the workshop and they sent it off to be replaced at no charge. The issue was that there was too much pressure being built up in the tanks(having too big a capacity) rendering it a manufacture fault. So they remade one. Also they would have been liable for my whole engine conversion if it had damaged the engine. I know its not the same things but its ball park. Principal is the same.

[shelldrake]

Compression test results...

150 145 150 140 - dry
175 170 175 175 - wet (5ml oil)

Seems ok to me....Will check clearances now...

George, I think it was more mistreatment than a build problem. I took it way past it's tolerance and the motor failed. If every step of the build was done at one place professionally and I did the same thing, I can't see them fixing the motor I abused. I have learnt alot on the way too. For reference a mates dad who professionally builds tough motors inpected what I had got up to in the motor build, then finished the job off to his standard (So, he basically pulled the motor down again and rebuilt it,lol). I'd run up about 1200 kms when this problem occured. Anyway, I appreciate you advice and support. Will keep you updated.