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Peninsular high flow water pump

Discussion in 'GM 6.2 Diesels' started by motiszm, Mar 12, 2014.

  1. motiszm

    motiszm New Member

    16
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    Jun 19, 2013
    Utah
    I've been thinking about upgrading my cooling and I figure it would cost less to buy this pump than to upgrade to a serpentine belt system and buy the 2000 model HO water pump. Anyone on here running one of these? If so how is it working for you? Doing the serpentine belt conversion might gain me a few hp, but there is something to be said about keeping it simple. Another question for those in the know: is there a better fan that I could run on this pump?
     
  2. WarWagon

    WarWagon Well it hits on 7 of 8...

    7,731
    1,763
    Nov 15, 2009
    AZ
    If you have the OBS (1980's) you really don't have the cooling issues that the reverse rotation water pump and aerodynamic no airflow through the radiator issues the NBS has (1990's). Likely for cooling issues on the OBS you have a worn out fan clutch that is over 5 years old and crud built up in and on the outside of the radiator.

    You turbo'd or other hot rod setup? What you cooking with under the hood?
     
  3. motiszm

    motiszm New Member

    16
    0
    Jun 19, 2013
    Utah
    I'm just gathering info for my future build. Right now I'm mostly trying to get it to stop pissing oil all over the place. I just recently replaced the radiator and finally have no cooling issues (though I still want to replace the fan clutch). I haven't tested it on any big hills yet though. It's a 1990 V1500 burb, non turbo for now. I was just under the impression that the stock water pump wasn't up to snuff but apparently that's mostly just with the new body style?

    Sent from my LG-D801 using Tapatalk
     
  4. WarWagon

    WarWagon Well it hits on 7 of 8...

    7,731
    1,763
    Nov 15, 2009
    AZ
    If you have to change the water pump - price it out. Won't hurt to have a HO pump, but, IMO it isn't needed on the OBS with NA. The HP was lower and thus the heat output didn't really benefit from it until you get turbo'd.
     
  5. motiszm

    motiszm New Member

    16
    0
    Jun 19, 2013
    Utah
    Good to know, so it's not a concern until I turbo it then. I'm planning on getting a banks kit in about a year or so. Still debating on whether I want to piece one together or buy a new one.
    A new one would be nice, but it just depends on how my wallet feels in a year. I don't mind putting money into the truck as I'm planning on having it for a long time. Trying to do things right the first time.

    Sent from my LG-D801 using Tapatalk
     
  6. WarWagon

    WarWagon Well it hits on 7 of 8...

    7,731
    1,763
    Nov 15, 2009
    AZ
    Leroy diesel, a vendor on here, can get the Banks manifold, then you drop a good turbo on it (aka not a GMx or Sidewinder) like a HX40II or A Team Turbo, used 6.5 intake... This can be done for less than the Banks kit.

    Change or machine out the precups, head studs... How far down the rabbit hole you going?

    Keep in mind MPG vs. power. You got the best MPG now. Turbo's will get it out of it's own way but cost as much as 25% of your MPG with the GMx. This is one reason the other turbo's are now popular.
     
  7. motiszm

    motiszm New Member

    16
    0
    Jun 19, 2013
    Utah
    I want to go at least that far down the rabbit hole :p

    I realise that mileage may suffer a bit, but being in Utah it's already down because of the altitude. I'd like to be able to go up hills faster than loaded semis. I drive out to MN at least once a year and getting over the mountains is a painful, smoke-filled experience.

    Sent from my LG-D801 using Tapatalk
     
  8. WarWagon

    WarWagon Well it hits on 7 of 8...

    7,731
    1,763
    Nov 15, 2009
    AZ
    You are 100% correct in needing a turbo for that use. Smaller ones work well with the 6.2 NA precups. Otherwise you will need bigger precups put in to clear the smoke from a larger turbo. Course we are talking a 6.5 DB2 injection pump to replace that small 6.2 pump turned up all the way...

    Lots of things to look at in planning your build.
     
  9. motiszm

    motiszm New Member

    16
    0
    Jun 19, 2013
    Utah
    Unfortunately my truck just ate another starter bolt, this time with the bracket on. When I bought it it had no bracket, and I didn't know this until it snapped a bolt. This time it shouldn't have happened, I think I may have reused one of the bolts, which may have been weakened already. I'll never do that again :(.
     
  10. ak diesel driver

    ak diesel driver 6.5 driver

    12,121
    1,607
    Feb 7, 2009
    alaska
    might check that your advance is working correctly
     
  11. WarWagon

    WarWagon Well it hits on 7 of 8...

    7,731
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    Nov 15, 2009
    AZ
    How well does this engine start? Do you have to spin it with the engine firing a couple times but not starting?
     
  12. motiszm

    motiszm New Member

    16
    0
    Jun 19, 2013
    Utah
    It actually starts pretty quickly now; however, I had to crank it quite a bit during the winter to get it started until I went through and replaced the whole glow plug system.

    Sent from my LG-D801 using Tapatalk
     
  13. motiszm

    motiszm New Member

    16
    0
    Jun 19, 2013
    Utah
    Well, got the snapped bolt drilled out. The guys at the shop ordered some better bolts for me from the dealer, apparently this was a big issue back in the day and these bolts helped fix the issue. Hopefully they'll do the trick. At any rate, I rented a car for the week so I can get my oil cooler lines rebuilt and reseal the valve covers to hopefully take care of some of the oil leakage going on under the hood.
     
  14. turbovanman

    turbovanman I has boost, :O)

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    May 20, 2008
    Abbotsford
    Turbo will only help mpg, if it goes down, get off the loud pedal. My city stayed the same and highway/hills/towing went up 4 mpg plus its more relaxing to drive. I have a 6.5 pump turned up and I get a light hazing, no rolling coal with the stock 84 heads and precups.
     
  15. Will L.

    Will L. Well-Known Member

    6,489
    4,115
    Jan 25, 2013
    Boulder City Nv
    x2 on better mpg if you can keep your foot out of it. I added a gm 6 with homemade tm, turned up the db2 1/2 turn. I have the same city driving mpg- but I accelerate a lot faster now. Always foot to the floor until up to speed. kinda obvious if I would accelerate as slowly as I used to I would burn less fuel. Just can't bring myself to prove it yet :hihi:
     
  16. turbovanman

    turbovanman I has boost, :O)

    1,554
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    May 20, 2008
    Abbotsford
    LOL. I don't need to make an appointment to merge on the highway anymore. :rof:
     
  17. Missy Good Wench

    Missy Good Wench Wild Blonde from Cloud Mt

    1,683
    41
    Nov 19, 2008
    Newberg Oregon
    The HO water pump ?? are these made for the V belt drive systems ???

    The normal HO pumps are for the serp drives and turn backwards as compared to the V belt systems
     
  18. bowtiebutler956

    bowtiebutler956 Active Member

    581
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    May 22, 2010
    Harlingen, Texas
    Robyn, I believe this is the pump they're talking about. http://www.peninsulardiesel.com/WP-...ine-fresh-water-pump-high-flow-v-belt-wgasket
    Its a high flow v-belt water pump for the old 6.2's. I bought one several years ago for a 6.2 sevice truck I use to own. Don't quote me on this, but if I recall its rated at 110 gph, which is a little less than the 130 gph of the HO pump, but is a big improvement over the OE pump. It made a difference on mine.

    Matt
     
  19. AVM62Diesel

    AVM62Diesel New Member

    2
    0
    May 14, 2016
    Washington, DC
    I put one on my 1983 6.2 powered motorhome, made a big difference, I no longer have to watch the temperature gauge like a hawk. Made a bigger difference than having the radiator recored.
     
  20. GM Guy

    GM Guy Manual Trans. 2WD Enthusiast

    4,662
    440
    May 6, 2008
    NW Kansas and SC Idaho
    @AVM62Diesel, since you drug up an old thread, the un-written rule is you have to post pics of the motorhome! :)

    Is it a pickup body or a G series van body?

    I actually found a 6.2L powered pickup cabbed motorhome for sale, but considering there were raccoons in the bathroom, I decided it would be a money pit. ;)
     
    WarWagon likes this.

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