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Thread: Engine Belt Tensioner Pulleys -- 2 Types?

  1. #1
    Join Date
    Jul 2010
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    Central Coast, Calif.
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    174

    Engine Belt Tensioner Pulleys -- 2 Types?

    As part of my front-engine re-build, I am trying to source and/or understand what's up with the two belt-tensioner pulleys. I have seen another thread whereby the bearings can be replaced, but mine don't seem to have the clip for freeing up the pressed-in bearing. My local automotive machine shop said he couldn't press them out b/c there's only one-way in.
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    Ideas?

    Tx,

    Paul
    '93 LWB, one of many L-R's over the years (GDE bumper w/Warn 8k, Disco axles, RTE 2" springs, Viair)
    1964 88" Truck Cab -- Stolen, then re-appeared locally after 20 yrs
    1966 88" Station Wagon -- Sold
    1967 NADA 109" -- Sold (after I wedged a 300 CID Ford 6 into it)... Help locate! Green 1967 NADA 109
    1990 RRC -- caught fire while wife driving solo... Good times!

  2. #2
    Join Date
    Sep 2014
    Location
    Belmont, CA
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    54
    Are these for the serpentine or 4 belt version of the engine? -

    found this and answered my own question.


    http://brakehorsepower.com.au/3186/r...g-replacement/

    From looking at the pics on that thread - yours look different on the top face - Is that raised lip at all removable to reveal the bearing?

    Are they original or after market?
    Last edited by Timbo; 01-07-2016 at 03:28 PM.
    94 - Range Rover LWB - 241000 miles!

  3. #3
    Join Date
    Jul 2010
    Location
    Central Coast, Calif.
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    My rig is a '93 LWB, 4-belt.

    --Paul
    '93 LWB, one of many L-R's over the years (GDE bumper w/Warn 8k, Disco axles, RTE 2" springs, Viair)
    1964 88" Truck Cab -- Stolen, then re-appeared locally after 20 yrs
    1966 88" Station Wagon -- Sold
    1967 NADA 109" -- Sold (after I wedged a 300 CID Ford 6 into it)... Help locate! Green 1967 NADA 109
    1990 RRC -- caught fire while wife driving solo... Good times!

  4. #4
    Join Date
    Sep 2014
    Location
    Belmont, CA
    Posts
    54
    Looking at you first picture - it looks like you have a cap on the top of the 2nd pully (alt I think) as I can see a dark line round the edge below the raised lip.
    94 - Range Rover LWB - 241000 miles!

  5. #5
    Join Date
    Jul 2010
    Location
    Central Coast, Calif.
    Posts
    174
    That was the source I had seen earlier. Guess I have some aftermarket pulleys. I am going to try and drill-out what feels like a recessed cap on the one side.

    Will report back.

    Tx Timbo,

    --Paul
    '93 LWB, one of many L-R's over the years (GDE bumper w/Warn 8k, Disco axles, RTE 2" springs, Viair)
    1964 88" Truck Cab -- Stolen, then re-appeared locally after 20 yrs
    1966 88" Station Wagon -- Sold
    1967 NADA 109" -- Sold (after I wedged a 300 CID Ford 6 into it)... Help locate! Green 1967 NADA 109
    1990 RRC -- caught fire while wife driving solo... Good times!

  6. #6
    Join Date
    Jul 2010
    Location
    Central Coast, Calif.
    Posts
    174
    I sacrificed the pulley making the most noise (the A/C one). There was a thin cap over the outer part. I partially drilled it and pried up the cap, then pounded the bearing out of the pulley. Now I wonder if a machine shop can get that bearing off the shaft. Then I have to see if I can source that bearing. It doesn't look like a 6023.
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    --Paul
    '93 LWB, one of many L-R's over the years (GDE bumper w/Warn 8k, Disco axles, RTE 2" springs, Viair)
    1964 88" Truck Cab -- Stolen, then re-appeared locally after 20 yrs
    1966 88" Station Wagon -- Sold
    1967 NADA 109" -- Sold (after I wedged a 300 CID Ford 6 into it)... Help locate! Green 1967 NADA 109
    1990 RRC -- caught fire while wife driving solo... Good times!

  7. #7
    Join Date
    Sep 2014
    Location
    Belmont, CA
    Posts
    54
    Just found this one similar to yours on eBay.

    http://www.ebay.com/itm/LAND-ROVER-D...item19f5eed6f7

    Not exactly cheap, when compared to the pulleys and tensioner I've just replaced on my bmw. Not sure if LR changed the design. Will check on my 94 when I get it back from my son.

    If so I suspect it's to offer the bearing a bit better protection than the open one on that diy site.

    tim
    94 - Range Rover LWB - 241000 miles!

  8. #8
    Join Date
    Jul 2010
    Location
    Central Coast, Calif.
    Posts
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    I have it soaking in a can of solvent now. Will attempt to re-infuse it with grease and find a plastic cap to replace the one I pried off. If this low-budge method doesn't work, I'll pop for a new one. That link is for Lucky8's eBay store. Just bought a water pump there last week.

    --Paul
    '93 LWB, one of many L-R's over the years (GDE bumper w/Warn 8k, Disco axles, RTE 2" springs, Viair)
    1964 88" Truck Cab -- Stolen, then re-appeared locally after 20 yrs
    1966 88" Station Wagon -- Sold
    1967 NADA 109" -- Sold (after I wedged a 300 CID Ford 6 into it)... Help locate! Green 1967 NADA 109
    1990 RRC -- caught fire while wife driving solo... Good times!

  9. #9
    Join Date
    Sep 2014
    Location
    Belmont, CA
    Posts
    54
    Had a look at my 94 - has these sealed pullys as well.

    could find nothing in the workshop manual about just replacing the bearing, so suspect it's a sealed for life unit.
    Last edited by Timbo; 01-10-2016 at 09:57 AM.
    94 - Range Rover LWB - 241000 miles!

  10. #10
    Join Date
    Jul 2010
    Location
    Central Coast, Calif.
    Posts
    174
    My bearing re-pack is partially successful, but the thing is still pretty noisy. I am running w/o A/C belt for now. Will pop for a new pulley after I get a timing problem worked out.

    Edit: timing problem fixed. Runs great, right @ 8 degrees BTDC. Turns out I had twisted the oil pump dog when tightening the water pump pulley back into place (with the dizy out), thereby moving my timing about 14 degrees too retarted. That was a bitch...!

    Now I have a "Check Engine" light on... probably from running the truck too lean when messing with the timing. Might have pissed off an O2 sensor. Will check to see if there is a code manana.

    --Paul
    Last edited by ccec; 01-10-2016 at 06:23 PM.
    '93 LWB, one of many L-R's over the years (GDE bumper w/Warn 8k, Disco axles, RTE 2" springs, Viair)
    1964 88" Truck Cab -- Stolen, then re-appeared locally after 20 yrs
    1966 88" Station Wagon -- Sold
    1967 NADA 109" -- Sold (after I wedged a 300 CID Ford 6 into it)... Help locate! Green 1967 NADA 109
    1990 RRC -- caught fire while wife driving solo... Good times!

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