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328 cooling thermostat

Discussion in '308/328' started by Strike328, Jul 23, 2012.

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  1. Strike328

    Strike328 Rookie

    Mar 12, 2007
    25
    Heiloo,Netherlands
    Full Name:
    Richard
    #1 Strike328, Jul 23, 2012
    When replacing my thermostat yesterday for a new, original, one I noticed the bottom of thermos (ring) not touching the body of the housing so effectively allowing flow through all 3 openings...(the 2 between the V and the one on the block). Could this be correct?
    Regards, Richard
     
  2. Matto

    Matto Formula 3

    Dec 26, 2011
    2,085
    Mooresville, NC USA
    Full Name:
    Matthew
    #2 Matto, Jul 23, 2012
    The thermostat should have a black rubber seal/ring around the edge, which seals off any water path around it. Do you have a photo of what you're describing?
     
  3. Strike328

    Strike328 Rookie

    Mar 12, 2007
    25
    Heiloo,Netherlands
    Full Name:
    Richard
    #3 Strike328, Jul 23, 2012
    Unfortunately no,no picture. It does have the rubber seal and it fits perfectly. When I turn the assembly around and look in the top of the two openings ( on which the hoses going through the v-shape are connected ) I can see the bottom of the valve approx 1/2 inch above the seat?!
     
  4. Matto

    Matto Formula 3

    Dec 26, 2011
    2,085
    Mooresville, NC USA
    Full Name:
    Matthew
    #4 Matto, Jul 23, 2012
    It will sit right there until the thermostat opens. Then it will begin to move back. Per Dave Helms in an earlier post: "The stat is a two stage unit, as it opens the passage to the radiator it blocks the re-circulation port going back to the engine."

    What you're seeing is normal, no worries.
     
  5. Strike328

    Strike328 Rookie

    Mar 12, 2007
    25
    Heiloo,Netherlands
    Full Name:
    Richard
    #5 Strike328, Jul 23, 2012
    Tnx 4 your reply! I did read the cooling system of a 328 was different but never thought it was that different....back to school I guess. Once again,thanks for taking away my fear of some previous mechanic screwing up my 328...Since it has always been running on the cool side (yeah, really) I thought this had to be the problem,I'd better check my gauges...
    Best regards,
    Richard
     
  6. Matto

    Matto Formula 3

    Dec 26, 2011
    2,085
    Mooresville, NC USA
    Full Name:
    Matthew
    #6 Matto, Jul 23, 2012
    You should be fine. Just be sure that a new one has all of the seals/gaskets, is seated well and that it has the "12 o'clock" air bleed hole :) I drilled my own, it's no big deal to do.
     
  7. Constance

    Constance Karting

    Apr 10, 2009
    213
    Kembs - France
    Full Name:
    Constance
    #7 Constance, Jul 24, 2012
    Last edited by a moderator: Sep 7, 2017
  8. Matto

    Matto Formula 3

    Dec 26, 2011
    2,085
    Mooresville, NC USA
    Full Name:
    Matthew
    #8 Matto, Jul 24, 2012
    Constance always rocks the photos :)
     
  9. Constance

    Constance Karting

    Apr 10, 2009
    213
    Kembs - France
    Full Name:
    Constance
    #9 Constance, Jul 25, 2012
    Of course, all maintenance activities as photografied and archived. That's the reason why I can alway provide pictures to ilustrate your comments.

    Regarding the thermostat, the photopraph comes from the file containing the last periodic operational test .
     

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