6.5TD Burb
Member
Anyone see the new(?) solid Dorman balancers? Link: http://www.dormanproducts.com/p-5226-594-170.aspx?pymmeid=6922777
Pic:
Pic:
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New Dorman balancers
- Thread starter 6.5TD Burb
- Start date
Matt Bachand
Depends on the 6.5
Cool! Anyone have any info about solid balancers? How does it absorb shock??
TurboTahoe
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Personally, I believe Fluidampr's engineering is the best. I did call and talk to one of their engineers and was very impressed. When I have some more money, I'd like to put them on both rigs.
-Rob
-Rob
6.5TD Burb
Member
Are you sure, it looks all cast to me?
For reference if someone doesn't know about this; rubber failure prone edition:
http://www.dormanproducts.com/p-18048-594-037.aspx?pymmeid=6922776
For reference if someone doesn't know about this; rubber failure prone edition:
http://www.dormanproducts.com/p-18048-594-037.aspx?pymmeid=6922776
Matt Bachand
Depends on the 6.5
Yeah, I took it as solid vs rubber.
ak diesel driver
6.5 driver
those are 2 diff pics which 1 is right?
Matt Bachand
Depends on the 6.5
Ones the HB, and ones the crank pulley?
6.5TD Burb
Member
Looking again....did GM have two different designs?
6.5TD Burb
Member
I think you're right. :sad: Didn't even pay attention to the rib/no rib.
Matt Bachand
Depends on the 6.5
That balancer still is very different. Mine has plenty of rubber visible on my HB.
fastjohnny
Member
I've got a Dorman harmonic balancer and crank pulley new in the box. I should look and see what part #'s they are.
Matt Bachand
Depends on the 6.5
http://www.rockauto.com/catalog/moreinfo.php?pk=292198
Maybe not, I'm just use to looking at it from the backside I think.
Maybe not, I'm just use to looking at it from the backside I think.
crash2win64
Member
Personally, I believe Fluidampr's engineering is the best. I did call and talk to one of their engineers and was very impressed. When I have some more money, I'd like to put them on both rigs.
-Rob
Fluidampr's are not as great as what they would like you to believe. Pointless to have your rotating assembly balanced if you use one of these. Their properties change between from startup cold to running warm. Any respectable machine shop or engine builder will tell you the same if they know what their doing and have your best interests in mind. As long as you buy a good quality balancer and keep it from getting an oil bath from these motors you'll be fine.
Yes I do realize I'll get some flack for saying this as it appears Fluidampr's are worshipped around here. Never seen so much about these till I started researching diesel performance lol
Go ahead and fire away now... :mad2:
TurboTahoe
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I don't understand this, can you explain? I thought that the purpose of a balance rotating assembly is because it balances the assembly so that when it is rotating it is not creating eccentric force just by virtue of rotating.
My understanding of the Fluidampr is that it is designed to absorb the 'spikes' of force caused by combustion events and to smooth them out. This is entirely different from having a balanced rotating assembly.
I'm sure that the Fluidampr probably has different characteristics whether the fluid is cold or hot, but the question to me would be what the differences are, and whether they affect the ability of the system to properly absorb the 'spikes' of combustion.
If a balanced rotating assembly was all that is needed to smooth out the combustion spikes, then we wouldn't even need the rubber-based harmonic balancers, no?
Please help me understand what is being said here.
-Rob
TurboTahoe
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At the risk of getting in trouble with the mods, here's a pretty good review of the fluidampr.
I won't put a direct link in, perhaps this will pass muster and not get me in trouble.
http://www.t h e d i e s e l p a g e.com/features/fluidampr.htm
-Rob
I won't put a direct link in, perhaps this will pass muster and not get me in trouble.
http://www.t h e d i e s e l p a g e.com/features/fluidampr.htm
-Rob
buddy
Active Member
The balancer doesnt just absorb shock it prevents the shocks from happening.
Fluid has a wonderful property in that it maintains its momentum to oppose the force of the changing momentum. You have two choices, spend $5K to rebuild and balance the whole rotating assembly and not have your truck for a couple weeks, or get a $500 fluidampr.
Fluid has a wonderful property in that it maintains its momentum to oppose the force of the changing momentum. You have two choices, spend $5K to rebuild and balance the whole rotating assembly and not have your truck for a couple weeks, or get a $500 fluidampr.
minisub
6-5/6-6;Whatever It Takes
Post #1 is a balancer. Post #5 is a crank pulley (attaches to the balancer).
Two different parts.
Two different parts.
crash2win64
Member
Reciprocating action of the crank, rods, and pistons will always cause harmonics to come from the rotating assembly. Balancing the rotating assembly effectively lowers the stress on all of the internal engine components by making everything even. It doesn't however negate harmonics like you may be thinking but it will lessen them. Think of it like this: you have one rim perfectly round and one mushroomed a little bit. Rolling the perfectly round one will be easy and it will track straight while the mushroomed one may still roll but it will take more effort and it won't track straight. Now think of that comparison now. When you take your parts to get balanced which includes your balancers to the machinest he focuses just on matching the parts and to get them to turn with the least resistance so the engine runs smooth. If you have a fluidampr it will stay in the cold state while he's doing the balancing and not get up to operating temps. If you use a regular dampener it stays the same warm or cold. In effect you can't balance a fluidampr because it changes state. Now when it gets up to operating temps(fluidampr) it changes properties and is then out of balance with the rest of the rotating assembly kind of like the mushroomed rim I was talking about earlier. This can cause alot of problems like crank breakage for one. I've never heard anything good about these from anyone I've talked to and all I've heard is plenty more than enough to make me stay very far away from them plus there really expensive.
Another thing to think about is if you call up and ask them about their product they are in business to make money and won't talk there product down any lol. Do some searches on fluidampr's and read up on them more than just here, their site, or jegs or summit books. Speedtalk is a good site info...
Another thing to think about is if you call up and ask them about their product they are in business to make money and won't talk there product down any lol. Do some searches on fluidampr's and read up on them more than just here, their site, or jegs or summit books. Speedtalk is a good site info...
Matt Bachand
Depends on the 6.5
Your engine still gets balanced with the stock damper though, which itself is a balanced assembly. Then removed, and install a fluidampr, which itself once again is a balanced assembly..
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