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PV, 120 (Amazon), 1800 General Forum for the Volvo PV, 120 and 1800 cars |
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122S head gasketViews : 1147 Replies : 18Users Viewing This Thread : |
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Sep 23rd, 2019, 11:11 | #11 |
66 Amazon
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Sep 23rd, 2019, 15:01 | #12 |
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If you are going to change the water pump while you’re in there, you want the OEM style with the cast impeller. The after market ones have an impeller stamped from sheet metal. The cast impeller provides better circulation at idle to keep the temps down while stuck in traffic on warm days.
Also a good idea to flush the block with a garden hose through the thermostat hole in the head and remove the draincock on the side of the block near the oil filter and blow compressed air in there while flushing. Last edited by c1800; Sep 23rd, 2019 at 15:05. |
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Sep 24th, 2019, 11:46 | #13 |
66 Amazon
Last Online: Jun 14th, 2022 16:45
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Well I took the water pump off and it is fine, very clean and all apparently working well. So I decided to take the head off and found bubbles of water in the rearmost exhaust port which would seem to indicate the head gasket had been leaking and would account for the steam from the exhaust after I had topped up the water when it had cooled down and restarted. Just need to check for warping, no cracking that i can see so fingers crossed. Will change the waterpump and both of the metal water pipes as they are pretty cruddy inside.
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Sep 24th, 2019, 11:50 | #14 | |
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Sep 24th, 2019, 11:52 | #15 |
66 Amazon
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Not had chance as yet to do a really close look will have to wait till the morning as am out this afternoon.
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Sep 24th, 2019, 13:36 | #16 |
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I'm no expert on these engines, but I would think that with a bad head gasket you would get water in the cylinder, not in the port. So I would be concerned with a cracked head.
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Sep 24th, 2019, 15:57 | #17 |
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niveketak;
Following with interest...I'd recommend removing Exhaust Valves (at least for #4) and checking for cracks...and as others have noted...our Cyl Heads are quite strong...I had a Cooling Sys leak on an acquaintance's car leak out and overheat the head to the point of browning the paint, and melting a piston, but everything remained straight as an arrow...no machining required... Good Hunting! |
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Sep 24th, 2019, 17:38 | #18 | |
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gasket
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It's most likely a dirty radiator than the gasket as these don't usually blow gaskets that easily. Flush out the radiator and this should keep the temp down Ta Kassie |
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Sep 24th, 2019, 20:59 | #19 | |
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