Sigh hope i didnt fuck anything up! - Page 2 - 3000GT/Stealth International Message Center

yetterben · 07-09-2008, 08:22 PM

SO then i am safe then. i tired to bump the crank pulley with the engine i didnt even let it go more than a tenth of a second. Didnt budge. crank moved exactly ten degress. it was at tdc now its at 10 btdc. How the fuck am i gonna get that off. I cant get the timing cover off either assume the lower crank pulley is holding it up! every bolt is out!

yetterben · 07-09-2008, 08:24 PM

dbl If i had a bent valve though the cam shaft would not move so easy would it??? pretty sure i am fine though. other than me doing the bump for liek a tenth of a second the motor has not gone anywhere except buy hand. These are interference motors aren't they? can i crank the motor over buy hand?????

Overboosted · 07-09-2008, 09:03 PM

No and I would highly recommend you not touch the starter again untill the timing belt has been put back on properly or the cams have been removed. Just by bumping the starter like that you could have just bent valves.

All you need to do is remove the cams and you can do whatever you want. Once the cam's are removed the valves will all closed and you can proceed with bumping the starter to untorque the crank pulley bolt.

Removing the cams are easy just remove the valve cover and remove all the bolt's holding the cam cap's in. Just make sure you untorque starting with the outside most cap's moving inward in small increments so you don't put stress on the camshaft and possibly warp it. Again this would be in a shop manual

.

Now because you bumped the starter like that you should do a leakdown test to make sure the valves are fine. It's easy to do and there is nothing worse than doing the whole 120k only to find out you have to tear it all down again because a valve is bent.

yetterben · 07-09-2008, 09:33 PM

SO if i bent a valve would i still be able to turn the motor over so freely? i am confused. the belt was not even hooked up. i hit it for a tenth of a second was not any worse than me turn the pulley real fast. I am concerned. would i have heard the valve bend ??? it really only moved like ten degrees. i cant find the link for the homemade pulley removal either. CAn i rotate the cams around at all?

Overboosted · 07-09-2008, 09:47 PM

Quote:

Originally Posted by yetterben

SO if i bent a valve would i still be able to turn the motor over so freely? i am confused. the belt was not even hooked up. i hit it for a tenth of a second was not any worse than me turn the pulley real fast. I am concerned. would i have heard the valve bend ??? it really only moved like ten degrees. i cant find the link for the homemade pulley removal either. CAn i rotate the cams around at all?

Don't rotate the cam's or the crank at all untill you have removed the cams and all the valves are closed. You could have bent a valve by clicking the starter and there is a good chance you would not have noticed it since all you would hear is the engine cranking over.

I am not saying you did damage something but 10 degrees is alot and if you add that to the 7 degrees you where already out from jumping the initial tooth there is a good chance the valves had a party with the piston's.

The only way for you to know if something is fucked is to remove the cams and shoot compressed air into the cylindar. You then stick your ear into the throttle body and at the exaust tip to listen for any air leaking out. If you hear air leaking out than chances are a valve is fucked and the heads need to come off.

The fact that the belt wasent hooked up is the reason why you could have caused damage by cranking the car over, even if it was just for a tenth of a second.

And yes it was worse than you turning the car over by hand, the starter is alot stronger than you.

Why dont you just pull the cams first before removing the pulley? You need to anyways and once the cams are removed you can use the starter to untorque the pulley bolt thus not needing any tool for it.

yetterben · 07-09-2008, 11:10 PM

Also i did not see any crank or cam snsor is there on a 91 n/a and do the cams have to be removed for a leak down test?

Overboosted · 07-10-2008, 12:01 AM

The cas is located on the opposite end of the rear intake cam, right by the Throttle body. Yes you need to remove the cams to do a leakdown test when the timing belt is removed since you can't turn the engine to close the valves on the cylinder your testing if that makes sence.

yetterben · 07-10-2008, 12:20 AM

God i cant belive i fucked up a car i have had for two days

God damn it!

yetterben · 07-10-2008, 01:02 PM

Now that my cams are removed and i have a air compressor. Am i going to have to rotae the crank at all or is it fine now cause all the valves are closed. This is in regards to the test!

Overboosted · 07-10-2008, 01:21 PM

You can rotate the crank if you want since the cams are removed but you don't need to. There is a chance that the compressed air might push a piston down during the test but that doesent matter.

Edit* Although if you put the piston at tdc there is less space to compress making it quicker to pressurize as long as the piston doesent get pushed down.

07-09-2008, 08:22 PM	#11 (permalink)
yetterben Forum Member Join Date: Jun 2008 Location: Eau claire Wi Drives: 91 dohc N/A power Trader Rating: (0)	Re: Sigh hope i didnt fuck anything up! SO then i am safe then. i tired to bump the crank pulley with the engine i didnt even let it go more than a tenth of a second. Didnt budge. crank moved exactly ten degress. it was at tdc now its at 10 btdc. How the fuck am i gonna get that off. I cant get the timing cover off either assume the lower crank pulley is holding it up! every bolt is out!

07-09-2008, 08:24 PM	#12 (permalink)
yetterben Forum Member Join Date: Jun 2008 Location: Eau claire Wi Drives: 91 dohc N/A power Trader Rating: (0)	Re: Sigh hope i didnt fuck anything up! dbl If i had a bent valve though the cam shaft would not move so easy would it??? pretty sure i am fine though. other than me doing the bump for liek a tenth of a second the motor has not gone anywhere except buy hand. These are interference motors aren't they? can i crank the motor over buy hand?????

07-09-2008, 09:03 PM	#13 (permalink)
Overboosted Dont f#@k with me I own a Join Date: Jul 2007 Location: Winnipeg Drives: 1991 Stealth TT AWD Trader Rating: (5)	Re: Sigh hope i didnt fuck anything up! No and I would highly recommend you not touch the starter again untill the timing belt has been put back on properly or the cams have been removed. Just by bumping the starter like that you could have just bent valves. All you need to do is remove the cams and you can do whatever you want. Once the cam's are removed the valves will all closed and you can proceed with bumping the starter to untorque the crank pulley bolt. Removing the cams are easy just remove the valve cover and remove all the bolt's holding the cam cap's in. Just make sure you untorque starting with the outside most cap's moving inward in small increments so you don't put stress on the camshaft and possibly warp it. Again this would be in a shop manual . Now because you bumped the starter like that you should do a leakdown test to make sure the valves are fine. It's easy to do and there is nothing worse than doing the whole 120k only to find out you have to tear it all down again because a valve is bent. __________________

07-09-2008, 09:33 PM	#14 (permalink)
yetterben Forum Member Join Date: Jun 2008 Location: Eau claire Wi Drives: 91 dohc N/A power Trader Rating: (0)	Re: Sigh hope i didnt fuck anything up! SO if i bent a valve would i still be able to turn the motor over so freely? i am confused. the belt was not even hooked up. i hit it for a tenth of a second was not any worse than me turn the pulley real fast. I am concerned. would i have heard the valve bend ??? it really only moved like ten degrees. i cant find the link for the homemade pulley removal either. CAn i rotate the cams around at all?

07-09-2008, 11:10 PM	#16 (permalink)
yetterben Forum Member Join Date: Jun 2008 Location: Eau claire Wi Drives: 91 dohc N/A power Trader Rating: (0)	Re: Sigh hope i didnt fuck anything up! Also i did not see any crank or cam snsor is there on a 91 n/a and do the cams have to be removed for a leak down test? Last edited by yetterben : 07-09-2008 at 11:24 PM.

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07-10-2008, 12:01 AM	#17 (permalink)
Overboosted Dont f#@k with me I own a Join Date: Jul 2007 Location: Winnipeg Drives: 1991 Stealth TT AWD Trader Rating: (5)	Re: Sigh hope i didnt fuck anything up! The cas is located on the opposite end of the rear intake cam, right by the Throttle body. Yes you need to remove the cams to do a leakdown test when the timing belt is removed since you can't turn the engine to close the valves on the cylinder your testing if that makes sence.

07-10-2008, 12:20 AM	#18 (permalink)
yetterben Forum Member Join Date: Jun 2008 Location: Eau claire Wi Drives: 91 dohc N/A power Trader Rating: (0)	Re: Sigh hope i didnt fuck anything up! God i cant belive i fucked up a car i have had for two days God damn it!

07-10-2008, 01:02 PM	#19 (permalink)
yetterben Forum Member Join Date: Jun 2008 Location: Eau claire Wi Drives: 91 dohc N/A power Trader Rating: (0)	Re: Sigh hope i didnt fuck anything up! Now that my cams are removed and i have a air compressor. Am i going to have to rotae the crank at all or is it fine now cause all the valves are closed. This is in regards to the test!

07-10-2008, 01:21 PM	#20 (permalink)
Overboosted Dont f#@k with me I own a Join Date: Jul 2007 Location: Winnipeg Drives: 1991 Stealth TT AWD Trader Rating: (5)	Re: Sigh hope i didnt fuck anything up! You can rotate the crank if you want since the cams are removed but you don't need to. There is a chance that the compressed air might push a piston down during the test but that doesent matter. Edit* Although if you put the piston at tdc there is less space to compress making it quicker to pressurize as long as the piston doesent get pushed down.