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PV, 120 (Amazon), 1800 General Forum for the Volvo PV, 120 and 1800 cars |
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B20 Cylinder head refurbViews : 755 Replies : 7Users Viewing This Thread : |
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#1 |
arcturus
Last Online: Today 08:22
Join Date: Mar 2006
Location: Sagres Portugal
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So I have the engine out and my mechanic doesn't think it needs re bore, just replace worn rings. I have the head on the bench for valve re grinding etc. I have a question re' replacing the valve seals. First of all removal, what's the best way and how to go about fitting new seals?
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life's too short to drink bad wine ![]() Last edited by arcturus; Jun 30th, 2017 at 13:53. |
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#2 | |
VOC Member
Last Online: Jun 3rd, 2024 19:45
Join Date: Nov 2004
Location: fareham
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If the former then the seals on a B18 head are different to the later B20. The B18 are umbrella type and fitted after assembly. Not sure what they do but Volvo must have had a reason. The B20 may not even have seals, I don't recall as my head came assembled from KG Trimning. The guides are something different and need an engineering shop unless you have a fly press. The alternative which has served me well is KLines which are fitted by broaching the original fitted guide with a special reamer then installed with a KLine tool. They are good as they allow some additional lubrication. With simple hand tools and engineering knowledge KLines can be installed at home Russ |
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#3 |
arcturus
Last Online: Today 08:22
Join Date: Mar 2006
Location: Sagres Portugal
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Seals. The removal was no problem because just after I wrote my question The package with de carb' kit was delivered and I was able to see how the seals looked and fitted. I don't expect too much difficulty in fitting the new ones but would appreciate any tips.
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#4 |
VOC Member
Last Online: Jun 15th, 2024 11:39
Join Date: Jul 2006
Location: Chatham
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Are you considering fitting exhaust valve seat inserts for better wear with unleaded petrol? Now is a good time.
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#5 |
arcturus
Last Online: Today 08:22
Join Date: Mar 2006
Location: Sagres Portugal
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I would if I could find someone here reliable enough to do the work. The Algarve is not known for it's engineering expertise!
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#6 |
arcturus
Last Online: Today 08:22
Join Date: Mar 2006
Location: Sagres Portugal
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How does it work. Do I have to provide the parts,seats valves etc and roughly how much would it be likely to cost.
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#7 |
arcturus
Last Online: Today 08:22
Join Date: Mar 2006
Location: Sagres Portugal
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So, head off and valve regrind. I think that the valves have seen better days. Pitting a bit too deep to grind out. Will put it all back together with a view to fitting an exchange head during the winter lay off. It will have to do for the Summer program. Must be better than it was.
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#8 |
Trader Volvo in my veins
Last Online: Today 13:11
Join Date: Dec 2004
Location: Anglesey
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For unleaded you fit bronze liners to the valve guides. Some also choose to fit a hardened valve seat to the exhaust side. The engine builders normaly supply the parts
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