Author	Subject: Valve run-out tolerance
mikebee Regular Location: Northampton Registered: 17 Aug 2010 Posts: 122 Status: Offline	Post #1 Have my cylinder head in the machine shop today. Does anyone know the tolerance on the run-out for inlet and exhaust valves? Just curious in case they come back saying they're okay but used the wrong tolerance
Posted 27th Sep 2010 at 14:34 Profile

welshpug! Capt Pedantic Location: Bigend, Wales. Registered: 27 Mar 2007 Posts: 25,838 Status: Offline	Post #2 surely a machine shop would know that I can't find the specific details for the RFS head, but for the old Mi16 head it is 0.035 to 0.042mm. ________________________________________ need a part number? get on here - http://public.servicebox.peugeot.com Bring on the Trumpets.
Posted 27th Sep 2010 at 15:39 Profile

mikebee Regular Location: Northampton Registered: 17 Aug 2010 Posts: 122 Status: Offline	Post #3 Magic. I'd be suprised if it's different to that. Just want to have a figure in my head as I've not used that machine shop before. They have a very good reputation, but need to be prepared to fend off any potential BS they might feed me!
Posted 27th Sep 2010 at 15:49 Profile

welshpug! Capt Pedantic Location: Bigend, Wales. Registered: 27 Mar 2007 Posts: 25,838 Status: Offline	Post #4 the main thing is the relationship between the stems and the valve seats, many need re-cutting if they have been damaged even though the damage may not be visible. the stems IIRC are both the same size, a nominal 7mm, 6.96-6.98 inlet, 6.94-6.96 exhaust. ________________________________________ need a part number? get on here - http://public.servicebox.peugeot.com Bring on the Trumpets.
Posted 27th Sep 2010 at 15:53 Profile

mikebee Regular Location: Northampton Registered: 17 Aug 2010 Posts: 122 Status: Offline	Post #5 Ok makes sense. Thansk for the info!
Posted 27th Sep 2010 at 15:54 Profile

The Peugeot GTi-6 & Rallye Owners Club - ©2024 all rights reserved.

Please Note: The views and opinions found herein are those of individuals, and not of The Peugeot 306 GTi-6 & Rallye Owners Club or any individuals involved.
No responsibility is taken or assumed for any comments or statements made on, or in relation to, this website. Please see our updated privacy policy.