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700/900 Series General Forum for the Volvo 740, 760, 780, 940, 960 & S/V90 cars |
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Pipes to the oil filter housingViews : 522 Replies : 6Users Viewing This Thread : |
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Apr 14th, 2018, 19:08 | #1 |
Master Member
Last Online: Oct 31st, 2023 21:23
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Location: Oban
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Pipes to the oil filter housing
Carrying out yet another oil/filter change today and looked at the two "rubber" pipes that clip onto the oil filter housing.
They are looking a little tired and I think it's time they were changed. One looks easy enough,the other would be easier to do without the filter in place so guess it'll have to wait for the next change but, when I disconnect them what'll empty out? Just the oil filter or a whole lot more? Assume these aren't under pressure at all? Thanks |
Apr 14th, 2018, 20:27 | #2 |
Trader Volvo in my veins
Last Online: Today 14:21
Join Date: Dec 2004
Location: Anglesey
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Those rubber hoses are coolant pipes
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Apr 14th, 2018, 22:16 | #3 |
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Last Online: Nov 23rd, 2023 14:26
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Location: Haltwhistle
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One of my Volvos died from a rupture in the short S-shaped pipe under there.
I think it was a poor design, but replacing them with good new ones is a great idea.
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1993 2.0 Turbo SE with 1991 2.0 Turbo engine. Older is better! |
Apr 14th, 2018, 22:42 | #4 |
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While you have them off thoroughly check the steel pipe that sits above them. At the age of these cars and with just a little poor maintenance the wall thickness of the waterpump bypass pipe can get VERY thin...
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The Following User Says Thank You to aardvarkash10 For This Useful Post: |
Apr 15th, 2018, 09:51 | #5 |
ericbeaumont
Last Online: Apr 22nd, 2024 19:38
Join Date: Oct 2004
Location: London
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I'll second that.
When you take off the hoses the drain valve will need cleaning out, but that's easy. Coolant pipes are a different matter, and if previous owners used rad sealants or hard water then all sorts of crud will reduce the diameter of the pipes - rubber and metal - and an unamusing search will have to be made to ensure the system is clear. I started out with an HG job and ended up stripping the entire turbo coolant system, the water pump & heater pipes and anything else nearby. Those little rubber pipes were completely blocked and so was much of the pipework - oil and water, and the metal filter box down there took up several days of poking and soaking in various chemicals, shaking and washing before it was clear. Never worked out why the turbo didn't pack up. Water pump was the only part that didn't need much cleaning. Good tool to poke and scrape: strip off half an inch of plastic sleeve from a length of net-curtain wire, unwind the end coil to give a pigtail, and rotate up a pipe. Ash's comment is spot-on: the red spur pipe (from the little rubber water hose and up to the block) may rust near the bottom end where the hose overlaps the pipe. Mine had rusted through; I cleaned the hole (wire brush/file inside & out) and sealed it with J&B weld. Could be a can of worms, but one best opened. |
Apr 15th, 2018, 10:00 | #6 |
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Last Online: Oct 31st, 2023 21:23
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Thanks everyone, hadn't realised they were carrying water, assumed (never assume I was once told) they were an oil drain or something.
Look forward to replacing that lot in the near future. Sounds like I need to allocate more than half an hour to it! |
Apr 15th, 2018, 17:58 | #7 |
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Last Online: Nov 23rd, 2023 14:26
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This is, like, a cool quote ;
While we're on the subject I swapped in a whole 1991 engine after mine died of that damned hose down under and I was pleasantly surprised that my new (old) engine has a much better coolant pipe and oil pipe arrangement.
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1993 2.0 Turbo SE with 1991 2.0 Turbo engine. Older is better! |
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