central and north alabama
12-03-2007, 09:41 AM
#1482
Well guys i got the motor pulled out of the trans am sat. She didn't break a piston or rod. Wel didnt pull the oil pan but we did notice that #1 and #6 both had eyebrows on the top of the pistons 
s:.. Which i believe finally caused the spun bearing. I think ill give TSP a call bc the MS4 is supposed to work on stock heads but it doesn't seem that way!! All the other pistons were fine but it was the intake valve only that hit. So it must be CLOOOOOOSE on the other ones. All i ca say is if you do get the MS4 its prob best just to flycut.. Took me 3 1/2 hours to get the motor out and it was my first time 
.
s:.. Which i believe finally caused the spun bearing. I think ill give TSP a call bc the MS4 is supposed to work on stock heads but it doesn't seem that way!! All the other pistons were fine but it was the intake valve only that hit. So it must be CLOOOOOOSE on the other ones. All i ca say is if you do get the MS4 its prob best just to flycut.. Took me 3 1/2 hours to get the motor out and it was my first time .
12-03-2007, 10:35 AM
#1483
but we did notice that #1 and #6 both had eyebrows on the top of the pistons s:.. Which i believe finally caused the spun bearing. I think ill give TSP a call bc the MS4 is supposed to work on stock heads but it doesn't seem that way!! All the other pistons were fine but it was the intake valve only that hit. So it must be CLOOOOOOSE on the other ones. All i ca say is if you do get the MS4 its prob best just to flycut.. Took me 3 1/2 hours to get the motor out and it was my first time .
s:.. Which i believe finally caused the spun bearing. I think ill give TSP a call bc the MS4 is supposed to work on stock heads but it doesn't seem that way!! All the other pistons were fine but it was the intake valve only that hit. So it must be CLOOOOOOSE on the other ones. All i ca say is if you do get the MS4 its prob best just to flycut.. Took me 3 1/2 hours to get the motor out and it was my first time .Its not going to be TSP's fault. The cam did and does work with stock heads. You spun a couple bearings. Just cause the others were fine or werent making conact means nothing. You spun rod bearings on #1 and #6, the rest seem to still be in decent shape. 9 times out 10 the intake will be the one hitting due to it be the larger valve. Ive only seen exhaust valves hitting when the car is way out of timing.
Thats who I knew I spun a bearing. I swapped heads and the larger valves starting hitting the pistons. Put the stock heads back on and it quit. It wasnt clearence issues because it was an F13 cam so It had to be a bad bearing. Sure enough it was.
Last edited by Z'mnypit; 12-03-2007 at 11:03 AM.
12-03-2007, 11:25 AM
#1484
I dont think the valves smacking the pistions caused a spun bearing. Its the other way around, you spin a bearing giving the rod more play/travel resulting with the rod moving up a few .000's than normal causing PtoV contact.
Its not going to be TSP's fault. The cam did and does work with stock heads. You spun a couple bearings. Just cause the others were fine or werent making conact means nothing. You spun rod bearings on #1 and #6, the rest seem to still be in decent shape. 9 times out 10 the intake will be the one hitting due to it be the larger valve. Ive only seen exhaust valves hitting when the car is way out of timing.
Thats who I knew I spun a bearing. I swapped heads and the larger valves starting hitting the pistons. Put the stock heads back on and it quit. It wasnt clearence issues because it was an F13 cam so It had to be a bad bearing. Sure enough it was.
Its not going to be TSP's fault. The cam did and does work with stock heads. You spun a couple bearings. Just cause the others were fine or werent making conact means nothing. You spun rod bearings on #1 and #6, the rest seem to still be in decent shape. 9 times out 10 the intake will be the one hitting due to it be the larger valve. Ive only seen exhaust valves hitting when the car is way out of timing.
Thats who I knew I spun a bearing. I swapped heads and the larger valves starting hitting the pistons. Put the stock heads back on and it quit. It wasnt clearence issues because it was an F13 cam so It had to be a bad bearing. Sure enough it was.
.. If you have a bad bearing then the car will not even want to run and seem like its in a bind. I called TSP and they said that they were going to find a place nearby that will check my cam and make sure that its not the problem. They are supposed to be calling me back sometime today. He said it was weird that only #1 and #6 had eyebrows on them.. I guess if the cam is off somehow on those particular lobes then it would in fact be their fault but i wont know anything until the cam goes to the cam doctor.
ALso how in the world can i spin a rod bearing at only 3500 rpm and the car also never saw above 6200
... On the morning it started knocking, i never once got above 3500rpm so i dunno.
12-03-2007, 12:30 PM
#1485
Whether timing is off or not it still doesn't change the lift of the cam .. If you have a bad bearing then the car will not even want to run and seem like its in a bind.
I called TSP and they said that they were going to find a place nearby that will check my cam and make sure that its not the problem. They are supposed to be calling me back sometime today. He said it was weird that only #1 and #6 had eyebrows on them.. I guess if the cam is off somehow on those particular lobes then it would in fact be their fault but i wont know anything until the cam goes to the cam doctor.
ALso how in the world can i spin a rod bearing at only 3500 rpm and the car also never saw above 6200... On the morning it started knocking, i never once got above 3500rpm so i dunno.
.. If you have a bad bearing then the car will not even want to run and seem like its in a bind. I called TSP and they said that they were going to find a place nearby that will check my cam and make sure that its not the problem. They are supposed to be calling me back sometime today. He said it was weird that only #1 and #6 had eyebrows on them.. I guess if the cam is off somehow on those particular lobes then it would in fact be their fault but i wont know anything until the cam goes to the cam doctor.
ALso how in the world can i spin a rod bearing at only 3500 rpm and the car also never saw above 6200
... On the morning it started knocking, i never once got above 3500rpm so i dunno.Why dont you pull the oil pan and pull the caps off # 1 and #6 and check the bearings before you start sending the cam off and etc. Save your self a little headache. If they are fine then you will know thats not the issue.
Is there some kind of rule stating the car has to be over 6200 rpm to spin a bearing? Nope! Look around on here, its doenst have to be a ceratin RPM. Ive read on here guys that just did rebuilds and spun bearings after the initial start up. You never know when its going to happen. Like I mentioned above, just pull the caps and see.
BTW- on my stock short block I had one bearing that was paper thin and melted together with the top half and I had another that was completely over lapped with the top half. This one being the cause of my piston fightning with my valve.
12-13-2007, 04:18 PM
#1489
I just know one or the other is gonna go out soon 
...anyone wanna make my Christmas dream come true? lol 
12-14-2007, 04:01 PM
#1493
Haven't even tore it completely down yet. I mean what else could it be? SO im just gunna go ahead and get all the parts i need then ill just take the block up to the machine shop have them bore and hone it and put my rotating assembly in it and make sure its all right and balanced and then start putting her back together. After i paint the car and engine bay ofcourse 
12-17-2007, 10:03 AM
#1496
Well new update guys. Got me a T56 with 2 flywheels and a pretty new LS6 clutch with pressure plate for the TA. Getting the pedal assembly, slave cylinder, and another flywheel this sunday
. Shes on her way, just going to take that trans up to a guy to have him put new syncros in it just bc i dont want any problems out of it . 
