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B18 Distribution Pipe Removal and cleaning. 444-544

posted by  5444me on  Thu Apr 26 19:53 CST 2007
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last visit: Mon Apr 30 13:10 CST 2007
[RELATED]

Hi all,

In response to my recent post "B18 overheating"

I have followed most of the suggestions I got from the list including replacing my temp sending unit / guage and putting in a new bosch coil. The old coil was 6vt and needed to be changed out anyway. I cant find any intake leaks and no signs of a lean mixture to the rear cylinder. The thermostat is correct and opens when it should.


Since the same problem of a hot rear cylinder head persists, I'm inclined to believe that there is something plugging the rear most holes in the distribution pipe.

I have all the parts/gaskets/freeze plugs here ready for me to pull the head and check the distribution pipe. I also have my Volvo parts catalog and an old Hanes manual covering the B18.

Does anyone have any suggestions or things I need to look out for when pulling the cylinder head?

Is the Distribution pipe bolted in, or indexed inside the head in any way?
Does the distribution pipe slide out the front, or the back of the head easier?

Thanks, any help would be appreciated. The manual just doesn't cover this.

Cheers
Rob








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    B18 Distribution Pipe Removal and cleaning. 444-544

    posted by  walrus3 on  Fri Apr 27 01:53 CST 2007
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    last visit: Mon Dec 2 14:20 CST 2013
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    It's a long thinwall brass tube rolled from sheet in sort of an oval shape
    with a longitudinal kink and 4 slots in it to spray the water over the hot
    spots. I believe it is most easily pulled out of the front. If there is a
    lot of scale or rust in the jacket it may be kinda hard to pull.
    --
    George Downs Bartlesville, Heart of the USA!








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      B18 Distribution Pipe Removal and cleaning. 444-544

      posted by  5444me on  Mon Apr 30 12:55 CST 2007
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      last visit: Mon Apr 30 13:10 CST 2007
      [RELATED]

      Thanks George!!

      I got the Pipe pulled and cleaned and everything back together.

      Thanks a lot.
      Rob






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