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I'm curious about the tightening sequence of this water pump. The manual says nothing about it. I have included 2 pictures and assigned numbers to the bolts. What sequence do you recommend for this type of water pump?

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2 Answers 2

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If there is no tightening sequence listed in the service manual, I would just use a star pattern. Probably 1,3,5,2,4.

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  • Can I use a pattern like cylinder head bolts? Starting from the middle and going towards the ends.
    – LFY MP7.3
    Commented Jul 29, 2021 at 22:34
  • @NarimanAsgharian which order would you suggest that is like a cylinder head? A cylinder head is not circular like this water pump.
    – HandyHowie
    Commented Jul 30, 2021 at 7:27
  • @HandyHowie - I was thinking about the common cylinder head tightening sequence for most cars. What is your suggestion for the above water pump?
    – LFY MP7.3
    Commented Jul 30, 2021 at 8:51
  • @NarimanAsgharian. I would do it very similar to what this answer says. I upvoted this answer.
    – HandyHowie
    Commented Jul 30, 2021 at 11:13
  • @HandyHowie - So, you also agree with the star pattern. Ok, I'll go for it.
    – LFY MP7.3
    Commented Jul 30, 2021 at 11:26
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Tighten evenly, and to the torque specified but you have that from the manual.

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  • Unfortunately, the manual says nothing. It just simply says install or remove the water pump! In some Peugeot forums, they say tightening torque is 10 nm but others say 15 nm.
    – LFY MP7.3
    Commented Jul 29, 2021 at 21:08
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    Some manuals have a page of bolt sizes and associated torques. The manuals I have bought - from the dealer / manufacturer do have the torques listed and they include Peugeot, Citroen and Talbot as well as Chrysler, Rolls Royce, Bentley, Jaguar, Hillman, Landrover to name but a few. Don’t have them all to hand but I do know Peugeot does list torques as I used to work on them.
    – Solar Mike
    Commented Jul 29, 2021 at 21:23
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    A google search can work wonders: static.piecesauto.com/images//medias/docs/0050/… Now you do have a torque wrench and know how to use it I presume...
    – Solar Mike
    Commented Jul 29, 2021 at 21:31
  • Yes, Peugeot definitely lists torque specs and I have the specs for most bolts. That's why I wonder why they haven't listed water pump torque specs for my specific engine. I have a torque wrench but I think I have to use my hands because there is not enough room around some bolts.
    – LFY MP7.3
    Commented Jul 29, 2021 at 22:32

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