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How to extract valve seats from cylinder head?

There is no extraction tool to extract valve seats from cylinder head. What is the correct way to dismantle them to install new ones?

asked 25 Mar '17, 02:07

March 25, 2017, 2:07 a.m.
KnowledgeBase's gravatar image


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accept rate: 0%

edited 28 Mar '17, 05:13

Answer:

Welding of valve to the valve seat is required in this case

  1. Cut the old valve from 2 sides to give enough space for welding

Cut old valve edges

  1. Choose correct welding rods about 2-2.5 mm so no damage done to cylinder head area close to seat

Weld valve to seat

  1. Weld the valve to the seat

Welded valve

  1. Knock out welded part by hitting the valve stem by hammer.

Knock out seat and valve

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answered 25 Mar '17, 02:21

March 25, 2017, 2:21 a.m.
SeamenExchangeExpert's gravatar image


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accept rate: 4%

edited 24 May '17, 03:40

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