Cold start tapping/knocking...uh oh....

Figit090

Fastest mk3 GT4 1/4 mile!
Jan 7, 2006
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what is the worst case scenario......lol....cost...difficulty? i dont have a lot of knowledge about how much things cost or what it will take...

uurgh...my own avitar is making me sick i need to make it smaller.
 

IJ.

Grumpy Old Man
Mar 30, 2005
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LOL Worst case is it needs a rebuild!

Well actually worst case would be it develops full blown RK kicks a rod out through the side of the block causing an oil fire and burns to the ground.....
 

supramacist

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Apr 8, 2006
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You should be able to. I mean, you seem to know your way around your car. I'm not a mechanic and after lurking around the underbelly for a few day's. I think I can do it. Take lots of digital pics and keep them in order. You should get a tsrm and or a chilton. I know I am going to have to rebuild......, It's all just a matter of when. And it is a hell of a lot easier putting exactlly the same thing in. But if you gut it. Build the way you want it so you won't have to fool with it again.
 

Figit090

Fastest mk3 GT4 1/4 mile!
Jan 7, 2006
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yeah a tsrm is on my t-do list. thank the lord that they are online and this forum exists...i've recieved a lot of help. hopefully it doesn't cost much or i'll be ditching the mge for a turbo.

I have a feeling it's not a rod...i heard the noise a few times much louder than others and i haven't really changed anything...and i would think a mechanical problem such as that would be more consistant and show more problems under a load....but i dunno.

I'm waiting to see if Johnathan has found any info....
 

supramacist

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Apr 8, 2006
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it won't. it's just like you are saying your'e doing. There's usually start up knock. But when you have the knock in 3rd @ 3k rpm's. You notice it eases up @ 2.5 and when you get close to 3.5 it's gone. It's just going to get worse the longer you drive it. Point Blank.
 

supramacist

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I may be wrong dude, but I have had exactlly what you are saying happen to me. and it kills you inside because you know this is a good ride, and you are either going to do 1 of 2 things about it. 1. your'e gonna pay out the asscot to get it fixed. 2. Or your'e still gonna spend some money and your'e going to get dirty. I'd go out and buy a few new tools. No better way to motivate for this gig. IMO. It'll drive for a while. while meaning a few oil changes down the road the way it is.
Slopiness breeds inefficiency
 

johnathan1

Supra =
Aug 19, 2005
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ugh, I have searched AND searched, and I can't seem to retrieve that page...I read it sooo long ago (almost two years ago)It basically explained the problem you're having, and IIRC, It was due to oil not reaching one of the cam lobes right away (like on startup), due to excessive wear on the lobe, and/or clogged oil passages (they are tiny) at the back end of the camshaft can't remember if it was cyl #5 or 6......It basically stated that it doesn't pose a threat to your engine, it is just a little annoying, sorry I can't be of more help. hopefully someone will chime in that knows, or has read the same page...

In the meantime, have someone start it up, and you put your ear at the rear of the motor, and try and determine if it is coming from under the valve cover (camshaft)
 

Figit090

Fastest mk3 GT4 1/4 mile!
Jan 7, 2006
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alright...thanks guys.... i'll try and catch the sound on a start where it's really prominant.... hopefully i'll get lucky....one day it got pretty loud but hasnt since...i dunno.

i'm just going to work on a tune up and get everything that is servicable serviced and go from there. right now she pulls and engine brakes a bit jerky...almost like a piston doesnt want to give much power so i'm hoping new plugs will help... the distributor contacts were corroded to crap so my guess is the plug under the EFI wont be very good either...hopefully thats my jerkyness... a cylinder that isnt burning all the fuel... we'll see this weekend.
 

supramacist

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Apr 8, 2006
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Maybe you just need to turn your rotors. A full fledged tune up will make a huge difference. cap, rotor, wires and plugs. I'm just working on mine and doing what I can. After I have tried and I know I don't have enough in my pocket to knock it, Mechanic.
 

suprra_girl

7M POWAH! ;)
Mar 30, 2005
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the post about the cam journals and the material & the wear i saw on the supras.com mailing list

i believe we also have that problem with my mums gte
start it cold, top end... tap tap tap gone! and it's not every day, just sometimes

when it breaks i'll fix it ;)
 

Figit090

Fastest mk3 GT4 1/4 mile!
Jan 7, 2006
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well i dont feel like shelling big bucks to fix my engine...but i would LOVE to know whats wrong so i can plan for my future transportation...weather that be a new car/truck, a new supra TURBO, a new turbo engine, fix what i have, or go NA>T if that somehow magically becomes practical and my engine wont blow up.

does that fact that my car only has 108,000 miles on it change anyone's opinions?? seems a bit early for something to go badly wrong except the head gasket...which was just a stupid mistake on toyota's part....

you always hear toyotas as being reliable... does that not quite apply to the MGE engines? I know that running conditions play a part...but my car isn't thrashed by any means.

I did the cap and rotor on the distributor, and i'm going to get plugs this weekend...then wires probably.
 

supramacist

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Apr 8, 2006
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There has been a huge dispute from supra owners to toyota. To recall these cars because of the head gasket issues. This is my first toyota. I am impressed and then I am pissed and then I'm impressed again. Get used to it, or get a 4 sale sign.
 

johnathan1

Supra =
Aug 19, 2005
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well said ^^

Figit: If you don't plan on staying with the Supra long term, then don't waste our time, and I'm trying hard not to be a jerk ;). If you want to stay with the Supra, you have to recognise that it is quite old, and as any other car would be, is prone to age-related issues...oh, and the Head gasket....