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Thread: 6.2/6.5 Fluidampr?

  1. #101
    Join Date
    Feb 2000
    Location
    Montana
    Posts
    11,161

    Default

    Quote Originally Posted by Konrad.INc View Post
    Hello

    I am wondering if anyone knows if its ok or not to glue a set of magnets onto a Fluidamper harmonic balancer? I have started to get a little interested in sticking an Isspro tacometer on my truck and I know they use a pair of magnets and a hall effect sensor to generate a signal. I am starting to get a little worried about my origonal balancer because I am getting a pulsing vibration throughout the truck which I think is steming from the engine. Kind of along the same lines, does anyone have any advice for installing a gear drive set at the same time as I do the damper?

    Thanks
    The rather small magnets Isspro uses shouldn't cause a problem when installed as indicated in the instructions. Some vibrations found in these engines could be due to an aging harmonic damper. It could also be attributed to a loose timing chain - causing variations in injection timing. It could also be due to an imbalance in the injectors or cylinder compression.

    Installing the gear drive timing set has been discussed at great length here in the board. A few searches should turn up a lot of reading.

    Jim

  2. #102
    Join Date
    Jul 2000
    Location
    Ezeiza, Buenos Aires, Argentina
    Posts
    63

    Default

    I'm using a Fluidamper with an Isspro tach, the only problem I have to report is that apparently I glued poorly one of the magnets and it flew away. So I'm having to multiply by 2 the tach readings. Ha.
    My only excuse it's that the Fluidampr surface is so smooth that is not a good bonding surface for the glue.
    No vibrations whatsoever even with only one magnet.

    If you don't want to glue the magnets to the damper you can glue them to the flywheel/flexplate and mount the hall effect sensor inside the bellhousing.
    I did that on a Toyota 4.2 L6 TD from a '95 Land Cruiser in a friends Dodge M-37 with an Isspro tach.
    Juan Castro
    Buenos Aires, Argentina
    Member #340
    1951 Dodge M-37 w/ 6.2l Diesel (soon to be 6.5 TD)
    2009 Dodge Ram Laramie 2500HD 5.9l Cummins TD
    1977 Chevrolet Malibu Station Wagon (soon to be 6.2l Diesel)

  3. #103
    Join Date
    Feb 2008
    Location
    Northeast CT
    Posts
    111

    Default

    Hey wanted to add to this. I just read the entire thing and my question is...Anyone running one of these(like I am)..Any issues with extremly cold weather ? Will the motor be out of balance in the morning ? Mine felt kinda funny the other morning after 1deg F over night but it could have been in my mind.
    Anyone have input on how cold weather affects them ?
    1886 M1008 CUCV
    GM4 Turbo,DB24911 turned up.
    Raptor 100 lp.
    NV4500(the way they should have come)
    5 inch Redneckmaster Ex
    Autometer Fullsweeps
    Serp Belt conversion. HO WP. Dmax Fan

    Previuosly owned:
    2000 K3500 6.5TD
    1993 K3500 6.5TD
    1983 K5 6.2
    1998 GMC Suburban 2500 6.5TD
    1991 GMC Jimmy 6.2
    1989 GMC Vandura 2500 Hi Top 6.2
    1983 GMC K2500 6.2
    1999 Ford Suerduty 350 7.3PS
    1983 Ford E-350 6.9
    1982 VW Rabbit Diesel

  4. #104
    Join Date
    Feb 2000
    Location
    Montana
    Posts
    11,161

    Arrow

    Quote Originally Posted by mrwilecoyote View Post
    Hey wanted to add to this. I just read the entire thing and my question is...Anyone running one of these(like I am)..Any issues with extremly cold weather ? Will the motor be out of balance in the morning ? Mine felt kinda funny the other morning after 1deg F over night but it could have been in my mind.
    Anyone have input on how cold weather affects them ?
    I've wondered that too, but haven't looked into it because I believe it's a minor point. The silicone fluid can operate under a very wide temperature range - perhaps moreso than the OE rubber elastomer.

    Near zero F. causes most diesel engines to start or begin running somewhat rough till the fire is lit and combusting normally in all eight. I recommend using the block heater (for at least a couple of hours) before the first start when it's that cold. That'll cure the roughness... Jim

    On edit: I'm putting together a 6.5 that'll have the FD. It'll probably be spring before it's on the road, but I'll know more next winter.

  5. #105
    Join Date
    Nov 2005
    Location
    Brady, Republic of Texas
    Posts
    248

    Default Zero Degree and Less Fluidamper

    Quote Originally Posted by mrwilecoyote View Post
    Hey wanted to add to this. I just read the entire thing and my question is...Anyone running one of these(like I am)..Any issues with extremly cold weather ? Will the motor be out of balance in the morning ? Mine felt kinda funny the other morning after 1deg F over night but it could have been in my mind.
    Anyone have input on how cold weather affects them ?
    I just got back from Crested Butte, last day when we left thermometer on RV Mirror read -23F. I was plugged in all night and started and after warming up noticed nothing unusual. Don't think cold bothered the Fluidamper.
    Mark Magee
    98 Burb 2500 LT 4x4 VIN G, 4:10's 180K miles, Amsoil Bypass/full flow filters, Turbo Master, Heath ECU Reflash, Duraterm GP's, New Injectors, Walbro FRC-13 LP, 480LE Rebuilt 2X, Vacuum Pump Delete, K&N Filter, Fluid Damper, DTech remote bumper mount PMD, Kennedy Exhaust, Kennedy Fan Clutch, Robertshaw 192F stats, 2.5" Crossover, CAT gutted, Fumoto Drain, Alcoa Centerline Wheels, Ride Rite Airbags.
    2013 Keyston Fuzion 301 Toyhauler 9,100#s empty
    Velocity XLFG N34XL
    Brady Texas Hill Country

  6. #106
    Join Date
    Feb 2008
    Location
    Northeast CT
    Posts
    111

    Default

    OK. Good too see someone else's results. I do use the block heater whenever possible. Hate the way they sound cold..
    1886 M1008 CUCV
    GM4 Turbo,DB24911 turned up.
    Raptor 100 lp.
    NV4500(the way they should have come)
    5 inch Redneckmaster Ex
    Autometer Fullsweeps
    Serp Belt conversion. HO WP. Dmax Fan

    Previuosly owned:
    2000 K3500 6.5TD
    1993 K3500 6.5TD
    1983 K5 6.2
    1998 GMC Suburban 2500 6.5TD
    1991 GMC Jimmy 6.2
    1989 GMC Vandura 2500 Hi Top 6.2
    1983 GMC K2500 6.2
    1999 Ford Suerduty 350 7.3PS
    1983 Ford E-350 6.9
    1982 VW Rabbit Diesel

  7. #107
    Join Date
    Feb 2008
    Location
    Northeast CT
    Posts
    111

    Default

    Update.
    I spoke with a tech at Fluidampr. They are in Buffalo NY and said unless it gets down to around -40f don't worry about it.
    1886 M1008 CUCV
    GM4 Turbo,DB24911 turned up.
    Raptor 100 lp.
    NV4500(the way they should have come)
    5 inch Redneckmaster Ex
    Autometer Fullsweeps
    Serp Belt conversion. HO WP. Dmax Fan

    Previuosly owned:
    2000 K3500 6.5TD
    1993 K3500 6.5TD
    1983 K5 6.2
    1998 GMC Suburban 2500 6.5TD
    1991 GMC Jimmy 6.2
    1989 GMC Vandura 2500 Hi Top 6.2
    1983 GMC K2500 6.2
    1999 Ford Suerduty 350 7.3PS
    1983 Ford E-350 6.9
    1982 VW Rabbit Diesel

  8. #108
    Join Date
    Aug 2010
    Posts
    419

    Default

    Low temp info direct from the fluidamper site:

    http://www.fluidampr.com/what/why-do...e-silicone-56/
    2005 Chev K3500 CCLB

  9. #109
    Join Date
    Feb 2000
    Location
    Montana
    Posts
    11,161

    Default

    Though it's taken much longer than I expected to complete the project, we've been driving the Blazer and rebuilt 6.5 (with Fluidampr) since last fall (fall-2021). The engine is very smooth running, and I have not noticed any damper-related roughness this past winter as a result of cold temps.... though it didn't get driven much during the coldest days that winter provided.

    Out of curiosity, from time to time I have looked at the damper's outer circumference while the engine was idling. It was always spinning dead true, without a hint of wobble that can sometimes be seen in a factory type damper. The serpentine belt also seems to spin around the pulleys with less flapping.

    All in all, I'm happy with the FD.

    If you are registered and logged in, you can visit another forum topic thread that discusses our Fluidampr installation as well as the entire 2021/22 build for our 1994 6.5L Turbo Diesel Blazer - from bare block to camping/kayaking.

    Registration is always free...
    Last edited by More Power; 07-04-2022 at 10:40.

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