i used my original crank and flywheel and just bought a new balancer. everything was balanced in my engine and i have the vibe too. it is really pissing me off. i have been through everything and cant seem to find it. it is a common problem and would really like to know the remedy. the only thing i have not changed is the trans mount. i am going to do that this week. Oh well

 

My question to everyone is what type of pilot bearing are you using? I was discussing with a friend that helped me put in the T5 about the pilot bearing that we used. I could have sworn that we used the copper bearing that was used in the 3 and 4 speeds of the day, but realized that I used the roller bearing that is used with the T5...... I wondering if this could have something to do with it....

Why can't this be an easy fix....

 

Just use a pilot bearing not a bushing.

If you used a bushing there is a really really good chance it has nothing to do with your issues.

-Gun

 

i am having the same issue. it has me pissed off. i also used the pilot bearing instead of the bushing

 

Ok... Just to update everyone, the vibration continues. So considering everything that I done, my next move is to pull the transmission. Last night I swapped balancers just to make sure this wasn't the source and I eliminated that possibility.

However, I took the starter off my car and noticed that things did not look good inside the bellhousing. I will post some pictures this evening, but in a nut shell, it appears that my flywheel was hitting the starter. There was a lot of metal shavings in the bellhousing from this too. I also noticed one of the teeth was broken off my new flywheel

I was trying to find info on the flywheel that I bought and am really starting to wonder if I somehow got the 164 tooth 28oz flywheel instead of the 157 tooth. Though I have not found the info on the flywheel that I bought, I realized that the clutch that I bought is a 10.5" clutch which i think might be wrong, but it did bolt up perfectly to the flywheel which makes me think that it might be a 164 tooth; thus causing the clearance issues with the starter. could this be the source of my vibration?

Any thoughts?

When i get home from work, I am going to hunt down the info for the flywheel to figure out what i purchased.


Also, as a side note, the starter is a 66 manual trans starter. I did have to enlarge the hole on the 5.0 block to trans plate to get it to fit. did anyone have to do this?

 

everyone uses the new mini starters...that could have something to do with it.
curious to see what you find.

 

I'm on a blackberry so I can't see the pictures you posted, but I would advise you to reconsider the interference issue.

Ive had very similar vibration issues three different times and they all came back to something that was vibrating touching something that wasn't.
In my experience you need a minimum of .25 inch clearance around anything that is vibrating and things that aren't.

In every case the offending vibrating part barely cleared the non vibrating at rest but once the motor was revved they had interference. All it took was some additional clearancing.

Parts I have had problems with were the pro 5.0 shifter and the trans tunnel, the RM crossmember and the trans mount, and the export brace and the upper intake manifold.
I'd check for a minimum of .25 inch everywhere before you go replacing anything else.

 

Well heres an idea pull the trans and have a look at that mess inside the bell housing and then closely inspect the tunnel, trans, and related parts to see if you can find any rub marks where two parts might have been touching.

 

I just went through this with my 68 coupe. Replaced the harmonic balancer and the vibration went away.

 

Well (with a big sigh)... I pulled the T-5 to see what the issue was and didn't see anything. So I decided to pull the t-5 bellhousing and clutch and all looked well. When i went to pull the flywheel, I put some pressure on the flywheel and the damn thing moved towards the engine about 1/8 - 1/4 of an inch..... At that time, I knew there was a bigger issue at hand. futher inspection shows that the whole crank moves about a 1/4 of an inch in and out of the block. So... the search for a new engine begins.

I was told that if you run the car with the wrong flywheel or balancer, you could vibrate the bolts holding the crank on the block loose. My ultimate assumption is that the flywheel may have been a 50oz and vibrated everything loose. Since I put about 500 miles on the engine with the vibration, i figure the engine is probably shot.

Thanks to all those that tried to help.