Re: [DMCForum] Re: Those darn y-pipe o-rings

[DMCVIN6683 <dmcvin6683@xxxxxxxxx>]

I used just a little RTV sealant all around the o-rings because i did 
not want to go back there again and installed new bolts.

Mark V




On Apr 17, 2005, at 11:57 AM, therealdmcvegas wrote:

>
>
> I had a leak in the exact same place on my PRV. I used the O-Rings
> from John Hervey's kit, and it worked just fine for me. They're nice
> and thick.
>
> To torque everything down, I first chased the threads with a tap, and
> installed new bolts, just in case the old ones were streched out.
>
> When I torqued everything down, I held the Y-pipe in place with one
> hand to keep it flush, as I hand tighened down the bolts, and then
> backed the one bolt out, so I could install the heater pipe. I then
> slowly torqued everything by hand, using a star pattern on the 4
> bolts. And THEN I installed the water pump with new silicone hoses.
>
> Pressure tested @ 14psi for 20 minutes, and nothing leaked then, nor
> since.
>
> How do you like the 760? I know the motors, but nothing about the
> trans, or even the overall feel of the cars. One day when I get a
> house, and some garage space to store my future toys, I'd like to
> pick up a Volvo Bertone coupé.
>
> -Robert
>
>
>
> --- In DMCForum@xxxxxxxxxxxxxxx, "cartermartin" <cartermartin@xxxx>
> wrote:
>>
>> Hi,
>>
>> I'm new here and although i do not have a DeLorean, I do have a
> Volvo
>> 760 with the B280F engine.
>>
>> I am hoping to find the solution to a coolant related problem I am
>> having. This is with the y-pipe that runs from the water pump to
> the
>> back of the engine block. Connected to the waterpump by the rubber
>> hose (short in length, large in diameter) and to the block with a
>> flange sealed (or was once sealed) with o-rings.
>>
>> My problem is that one of these failed was 'repaired', however it
>> still seeps a small amount of coolant, typically after the engine
> is
>> cold but when there is still pressure in the system. I replaced
> these
>> o-rings (again) and used a modest amount of gasket sealer torqueing
>> the bolts to 15ft-lbs (11n-m).
>>
>> I found my way here from an earlier post, "That darn water return
>> pipe" from last year. Some of the gallery photos showing coolant
>> inbetween the heads has been most helpful and very familiar.
>>
>> My temptation is to crank these bolts down a bit more but don't
> want
>> to risk stripping the threads. Then i would have real problems.
>>
>> Does anyone have an idea as to what torque should be used for these
>> bolts? Or have anyother ideas for sealing this thing up?
>>
>> Many thanks in advance and sorry for the longish post.
>>
>> Carter
>
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> Yahoo! Groups Links
>
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>

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