Balance flywheel/pressure plate?
02-27-2007, 01:06 PM
#1
Rennlist Member
Thread Starter
Balance flywheel/pressure plate?
Well, to be honest, this hadn't occurred to me until I was reading thru old threads in the process of doing the clutch job. I've had engines balanced before when rebuilding and know how much of a difference it can make. I have a Fidenza flywheel and KEP stage I pressure plate (along with 930 disk) sitting on the shelf. So I ask the community for their opinions:
- Should I have them balanced before putting them on?
- is this something my local machine shop can do (assume they are competent, but do not specialize in anything particular)?
- if not a local machinist, any recommendations?
- would I take/send them the individual components (including disk, thowout bearing, etc.), or the assembly (reading ahead it looks like you need to 'assemble' the clutch components before putting them on)?
- Are there places I should recommend to them for drilling while balancing (or NOT to drill), or would this insult a competent machinists intelligence?
- Should I have them balanced before putting them on?
- is this something my local machine shop can do (assume they are competent, but do not specialize in anything particular)?
- if not a local machinist, any recommendations?
- would I take/send them the individual components (including disk, thowout bearing, etc.), or the assembly (reading ahead it looks like you need to 'assemble' the clutch components before putting them on)?
- Are there places I should recommend to them for drilling while balancing (or NOT to drill), or would this insult a competent machinists intelligence?
02-27-2007, 05:08 PM
#2
Rennlist Member
Each part should already be balanced. However, I am sending my fllywheel and clutch parts to have them balanced with each other. I was told they would come back with index marks as to assembly alignment.
02-27-2007, 09:00 PM
#4
Rennlist Member
mtnman82, I would definitely get your Fidanza balanced. My Fidenza flywheel as supplied by them was 2.76 grams out of balance... or about 6 lbs effective mass unbalance at 5800 RPM. WAY too much!!!!!!!!
I had Markus Blaszak do this for me while making a custom clutch set up.
I eventually, went with a lightened OE steel flywheel + KEP1 + Feramic disc w/Cup hub.
Your pressure plate, associated bolts, and ring gear should be balanced as an assembly as well.
Any machine shop that does balancing of rotating assemblies should have no problem doing this.
Here is a pic of where my Fidanza was drilled at:
I had Markus Blaszak do this for me while making a custom clutch set up.
I eventually, went with a lightened OE steel flywheel + KEP1 + Feramic disc w/Cup hub.
Your pressure plate, associated bolts, and ring gear should be balanced as an assembly as well.
Any machine shop that does balancing of rotating assemblies should have no problem doing this.
Here is a pic of where my Fidanza was drilled at:
02-27-2007, 11:02 PM
#6
Rennlist Member
Mine is being done at the machine shop that does Lindsey Racing's work. Mike said it would cost less than $100, but I think that is heavily discounted because of the rest of the 2.8L build I am doing with them.
