Post #1
Hi,I am preparing a set of standard pistons for Kent PT82 cams. I need to know how much is recommended to increase the piston cuts. What should be the depth? And what is the maximum safe depth?
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displaying posts 1 to 11 of 11
| Author | Subject: Pistons cut outs - what depth? |
 edhunter
Regular  Location: Sofia Registered: 29 Nov 2009 Posts: 118 Status: Offline |
I am preparing a set of standard pistons for Kent PT82 cams. I need to know how much is recommended to increase the piston cuts. What should be the depth? And what is the maximum safe depth? |
 Posted 13th Apr 2014 at 10:12
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daveyboy
aka Jim Davey  Location: Southampton Registered: 01 Oct 2007 Posts: 8,648 Status: Offline |
Post #2
It's about 2mm I think, not much at all. PM Allenallen, he's done lots of these and will be able to tell you all you need to know.________________________________________ R H Davey Welding Supplies. I sell new and used welding equipment in the Hampshire area. I take on welding jobs in the evenings, ally casting repairs are one of my specialities but I can weld pretty much anything. PM me with your requirements.Some of my services: (See my for sale threads) Engine mount/chassis repair Solid Beam Mounts BACK IN PRODUCTION Harness bars |
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Posted 13th Apr 2014 at 10:34
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welshpug!
Capt Pedantic  Location: Bigend, Wales. Registered: 27 Mar 2007 Posts: 25,847 Status: Offline |
Post #3
1mm.I doubt there is space to run PT82's, given they run 2.03mm @ TDC. ________________________________________ need a part number? get on here - http://public.servicebox.peugeot.comBring on the Trumpets. |
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Posted 13th Apr 2014 at 10:36
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allanallen
Seasoned Pro  Location: Buxton Registered: 01 May 2007 Posts: 1,399 Status: Offline |
Post #4
No idea how much in 'x', you'd have to use trig to work it out. We machine them 1mm deeper at the correct valve inclination. I wouldn't recommend going much deeper as the crowns are thin and they're not renowned for being the strongest pistons anyway.If the head has never been skimmed you 'should' be ok running pt82s, a dummy build is always wise though. ________________________________________ www.bridgecraftmotorsport.co.uk |
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Posted 13th Apr 2014 at 11:01
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edhunter
Regular Location: Sofia Registered: 29 Nov 2009 Posts: 118 Status: Offline |
Post #5
Thanks to all of you  The head that is going to be used has not been skimmed, I also think to buy new original gasket from Peugeot. I also have another damaged head and block, they will be used for drilling the pistons and testing the setup before the cams and pistons go into the real engine I have one more question - When drilling the pistons through the head I think that the gasket should be in place. Is that correct? |
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Posted 13th Apr 2014 at 13:29
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allanallen
Seasoned Pro Location: Buxton Registered: 01 May 2007 Posts: 1,399 Status: Offline |
Post #6
Drilling pistons through the head?! You're on your own with that one fella________________________________________ www.bridgecraftmotorsport.co.uk |
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Posted 13th Apr 2014 at 14:38
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edhunter
Regular Location: Sofia Registered: 29 Nov 2009 Posts: 118 Status: Offline |
Post #7
May be I have not expressed my self correct.I could not find near me no one to machinery pistons for reasonable price So we've decided the to use this primitive method - we will be using modified valves as drills. So we will drill after that measure and again and and again .... I admit that I have no experience with this at all, but my buddy has done this many times before, but not exactly for gti-6. |
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Posted 13th Apr 2014 at 15:15
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allanallen
Seasoned Pro Location: Buxton Registered: 01 May 2007 Posts: 1,399 Status: Offline |
Post #8
I have heard of people doing it but I personally wouldn't. You could do it with or without the head gasket fitted, can't see that it'd make much difference. If you can source a set of pistons/rods in this country I'm happy to machine them and post them to you  ________________________________________ www.bridgecraftmotorsport.co.uk |
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Posted 13th Apr 2014 at 15:30
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eddy_gti6
Seasoned Pro  Location: Durham Registered: 20 Oct 2008 Posts: 8,716 Status: Offline |
Post #9
I have a set of spare pistons and rods if you need any? £50 set of 4________________________________________ Clicky: [url =http://www.306gti6.com]click here[/url] remove the space between [url & = |
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Posted 13th Apr 2014 at 15:32
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edhunter
Regular Location: Sofia Registered: 29 Nov 2009 Posts: 118 Status: Offline |
Post #10
Thanks Alan I'll keep this in mind if we dont succeed with our method.Eddy thanks, I also have two sets of pistons with rods. |
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Posted 14th Apr 2014 at 11:37
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welshpug!
Capt Pedantic Location: Bigend, Wales. Registered: 27 Mar 2007 Posts: 25,847 Status: Offline |
Post #11
you could just get Allan to do them.________________________________________ need a part number? get on here - http://public.servicebox.peugeot.comBring on the Trumpets. |
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Posted 14th Apr 2014 at 11:58
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