Replacing vaves in AMC heads? |
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FannyBawz
Newbie Joined: 28 Mar 16 Location: Scotland Status: Offline Points: 7 |
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Posted: 15 Jan 17 at 18:00 |
Quick question - if I want to replace the valves on an AMC head with VW parts, will I need to get the seats recut or can I just lap them in?
Just wondering how the work involved in improving the AMC heads would compare to getting my originals refurbed... Thanks
David |
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rowlesy
Vanorak murdered the murderwagen Joined: 09 Oct 05 Location: up unit! Status: Offline Points: 6466 |
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if its like for like then lapping them will work if its a different valve seat angle then they need re-cutting then lapping.
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UberFukz broke another! sucky sucky five dollah!
always out numbered never out gunned! RWS welding 07846 380 467 (worcs) |
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FannyBawz
Newbie Joined: 28 Mar 16 Location: Scotland Status: Offline Points: 7 |
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Yeah that's the trouble, I dunno if AMC use the same seat angles as the originals!
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ob1
Yardie FOUND IT, IT WAS HIDING! Joined: 11 May 08 Status: Offline Points: 732 |
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I've got a brand new AMC head here for an AAZ - they look like straight copies so it would make sense that the valve seats are the same? Hope so anyway!
Edited by ob1 - 16 Jan 17 at 08:18 |
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BeJay
Vanorak Joined: 03 Jun 09 Location: Leicester Status: Offline Points: 1325 |
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Use a little bit of engineers blue on one of the valves and spin/lap it a couple of times in the head, (hand lap not electric drill!), you'll soon see if the valve face angle and seat angle are the same or not, by whether the blue trace left on them is on the full width of the seat or just the high spot.
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NIL ILLIGITIMUS CARBORUNDUM
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