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PV, 120 (Amazon), 1800 General Forum for the Volvo PV, 120 and 1800 cars |
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Amazon radiator return pipe problemsViews : 625 Replies : 10Users Viewing This Thread : |
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May 5th, 2024, 21:50 | #1 |
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Amazon radiator return pipe problems
Hi all,
Just wondering if anyone had some useful advice for this as you usually do! Managed to localise the source of the persistent puddle under the car to the junction between the hose from the bottom of the radiator and the pipe heading up to the water pump. Essentially the metal had corroded to the point that that tube is functionally never going to be able to make a suitable deal. After disassembling (and ensuring no remnants of anything remain in the pump) I tried inserting a new pipe from Brookhouse with a new o ring to no avail, trying o ring lube etc. On inspection the dimensions of the new pipe Vs old pipe do appear slightly different with the new one being longer, but even with the new o ring I'm struggling to get the old pipe to align so I can fit the bolt into the engine block even with significant force. Short of modifying the pipe, has anyone got any suggestions as to what might be going on? Searching the forums and Haynes manual hasn't provided much help! |
May 6th, 2024, 19:47 | #2 |
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You may have tried this, can you slot both the old and new pipes into the water pump (minus the o ring) and fit the bolt through the timing cover.?
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May 6th, 2024, 19:49 | #3 |
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Thanks for your reply! I have, they both only just line up, but I can't see how it would fit with the o ring there?
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May 7th, 2024, 09:34 | #4 |
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Try fitting the new pipe minus the o ring. Pencil mark the pipe at the pump base.
Remove pipe, fit o ring to pencil line, attempt to fit the pipe. |
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May 7th, 2024, 09:41 | #5 |
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It is many years since I replaced the water pump, my above idea will be useless if the pipe has a shoulder/collar inbuilt to support the o ring.
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May 7th, 2024, 10:12 | #6 |
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Thoroughly clean the W. Pump port with emery cloth or wire wool. Put a thin layer of rubber grease on pipe and o ring. Good luck.
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May 7th, 2024, 13:18 | #7 |
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Increase the size of the hole in the bracket to give some shuffle room for the bolt. Tighten bolt after fitting. I am editing this as I see that the Brookhouse pipe has a tube for the bolt. I thought it was just a tab. If it fits OK without the bolt you might have to cut off the tube and reweld it so it fits. Have a word with Brookhouse. An original might fit OK.
Last edited by Derek UK; May 7th, 2024 at 13:24. |
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May 7th, 2024, 14:03 | #8 |
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SS;
I understand the old one was beyond reuse, but when fitting a replacement is the plan, it is always good practice to physically compare form and fit of the replacement part with the original...this will show if parts are identical, or if a "slight adjustment" will be necessary, or even if return to vendor is the next step. Cheers |
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May 7th, 2024, 22:35 | #9 |
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Thank you all for all the help! the original is now with my mechanic for some light fettling, i'll keep people updated with the outcome. I think that essentially it fits nicely into the pump but the tube for the bolt doesn't align with the hole in the block.
Given some of the bodge jobs done on the car prior to me getting it, i half wonder if someones sheared the bolt off and drilled a new one into the block! slowly getting through them one way or another! |
May 8th, 2024, 23:00 | #10 |
1800necwinner
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Simple use two o rings and bolt that baby up sorted and use rubber grease to insert with the new water pipes are toooooo long so your just taking the slack up as it is not sealing correctly that’s how I have fitted them past four - five years ever since the new repro pipes been on market
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