JasonMiller94SC
Registered User
I've been running a Mark VIII converter and flexplate in my car for about 3 years now and the car runs great. That was untill I started hearing a knocking noise comming from the bell housing of my car. The trany had been rebuild but I've since put about 65,000 hard miles on it so I figured maybe something in there broke.
After talking it over with my friend Jay we decided to make sure the toque converter bolts had not backed off. We put it on the ramps and snugged each one down and Ta Da! No more noise. I drove the car home with a big simle thinking I had fixed the problem.
The next day and about 40 miles later the noise was back.
The only other think I could think of to check was that maybe one of the bolts holding the flexplate to the crank had backed out.
I bought a new flexplate and took my car back to Jay's garage so we could pull the tranny out.
As soon as we had the tranny back I was able to see the problem.
A slight tap with a rubber mallet and:
My question is, what would cause this? All of the bolts in the center were very tight.
I got this part from someone who had used it for about a year and he got it new. I'm wondering if he got it from somewhere else besides ford. You can see the new one in the picture looks like it is made different and the new one I got directly from the ford dealership and it has the ford oval and part number stamped on it. The old one has no such markings.
The new one also feels like it weighs more but I didn't actualy weigh them.
Has anyone seen this before?
On a side note when I took the car to Rockingham dragway this past Febuary on a 800 mile roadtrip for my girlfrinds birthday I heard it making a sight knocking sound that I passed off as being a loose heat shield on my cat. I now know it was the flex plate. Well with no bottle and on street tires with the flexplate rattling away the car still ran 13.3's all day. I'm hoping it might run a little better now.
After talking it over with my friend Jay we decided to make sure the toque converter bolts had not backed off. We put it on the ramps and snugged each one down and Ta Da! No more noise. I drove the car home with a big simle thinking I had fixed the problem.
The next day and about 40 miles later the noise was back.
The only other think I could think of to check was that maybe one of the bolts holding the flexplate to the crank had backed out.
I bought a new flexplate and took my car back to Jay's garage so we could pull the tranny out.
As soon as we had the tranny back I was able to see the problem.
A slight tap with a rubber mallet and:
My question is, what would cause this? All of the bolts in the center were very tight.
I got this part from someone who had used it for about a year and he got it new. I'm wondering if he got it from somewhere else besides ford. You can see the new one in the picture looks like it is made different and the new one I got directly from the ford dealership and it has the ford oval and part number stamped on it. The old one has no such markings.
The new one also feels like it weighs more but I didn't actualy weigh them.
Has anyone seen this before?
On a side note when I took the car to Rockingham dragway this past Febuary on a 800 mile roadtrip for my girlfrinds birthday I heard it making a sight knocking sound that I passed off as being a loose heat shield on my cat. I now know it was the flex plate. Well with no bottle and on street tires with the flexplate rattling away the car still ran 13.3's all day. I'm hoping it might run a little better now.