Post #1
Hi all, is there any way of knowing if a second hand head has been skimmed? Also can you get a thicker gasket for 1 that has been skimmed. I'm gonna fit some cams but dont want to touch the bottom end
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displaying posts 1 to 12 of 12
| Author | Subject: cylinder head |
 markylee
Regular  Location: benfleet Registered: 05 Jan 2011 Posts: 393 Status: Offline |
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 Posted 25th Oct 2013 at 10:42
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stan_306gti6
Forum Admin Location: Kent Registered: 18 Jan 2004 Posts: 21,768 Status: Offline |
Post #2
Yes, you can buy the repair gasket from Pug which is 1.4mm thick as opposed to 1.2mm which is the thickness of the standard one.  ________________________________________ "Supercharged - 454.1bhp/317.5lb/ft"Peugeot 306 GTi-6 2000 (X), Moonstone  |
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Posted 25th Oct 2013 at 11:06
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markylee
Regular Location: benfleet Registered: 05 Jan 2011 Posts: 393 Status: Offline |
Post #3
Excellent, why do people bother pocketing pistons then. Seems like a lot of extra work and cost for no reason |
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Posted 25th Oct 2013 at 11:13
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markylee
Regular Location: benfleet Registered: 05 Jan 2011 Posts: 393 Status: Offline |
Post #4
I suppose you could do that without splitting the engine |
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Posted 25th Oct 2013 at 11:15
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jeffers
Forum Admin Location: Leeds Registered: 14 Dec 2003 Posts: 3,702 Status: Offline |
Post #5
markylee wrote: Excellent, why do people bother pocketing pistons then. Seems like a lot of extra work and cost for no reason The reason people pocket the pistons is simple, to fit anything more than very mild cams to one of these cars is difficult due to the very limited valve to piston clearance. Even relatively mild cams which according to the manufacturer will fit in an otherwise standard engine have later found to be causing the valves to "kiss" the pistons which obviously is detrimental. There is a very interesting thread on the subject Here Hope this helps!  ________________________________________ Team Running Engine again!Team Negative Camber! My Budget track engine build thread! Now appearing at a Trackday near you!!  |
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Posted 25th Oct 2013 at 12:12
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markylee
Regular Location: benfleet Registered: 05 Jan 2011 Posts: 393 Status: Offline |
Post #6
Cheers jeffers, I know that my head has been skimmed, I'm going for a mild cam, would you suggest a thicker gasket or pistons pocketed |
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Posted 25th Oct 2013 at 12:43
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jeffers
Forum Admin Location: Leeds Registered: 14 Dec 2003 Posts: 3,702 Status: Offline |
Post #7
You need to know how much has been taken off the head plus how big a lift the cams have... Then you can work out what should work....________________________________________ Team Running Engine again!Team Negative Camber! My Budget track engine build thread! Now appearing at a Trackday near you!! |
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Posted 25th Oct 2013 at 13:21
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cully
Seasoned Pro  Location: Cullompton Registered: 12 Jun 2013 Posts: 1,093 Status: Offline |
Post #8
anyone have the part number for the repair Gasket from Pug which is 1.4mmand is it the MLS gasket or is it the one for the XU10J4 engine not the RS |
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Posted 25th Oct 2013 at 18:48
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dangti6
aka JKshooter  Location: Taunton, Somerset Registered: 15 Jun 2006 Posts: 10,305 Status: Offline |
Post #9
There is a marker on the head face that will indicate how much has been removed.________________________________________  |
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Posted 25th Oct 2013 at 19:30
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cully
Seasoned Pro Location: Cullompton Registered: 12 Jun 2013 Posts: 1,093 Status: Offline |
Post #10
dangti6 wrote: There is a marker on the head face that will indicate how much has been removed. you have to measure it and calculate it against the original new measurment the marks you probably speak of are the cast marks and if the are machined off its well scrap unless you invest in some serious machining to sink the valves in the head and i was asking about the gasket |
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Posted 25th Oct 2013 at 22:29
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stan_306gti6
Forum Admin Location: Kent Registered: 18 Jan 2004 Posts: 21,768 Status: Offline |
Post #11
cully wrote: anyone have the part number for the repair Gasket from Pug which is 1.4mm and is it the MLS gasket or is it the one for the XU10J4 engine not the RS 0209 T9 is the part number you need. It's not MLS but you do use the same torque settings.  ________________________________________ "Supercharged - 454.1bhp/317.5lb/ft"Peugeot 306 GTi-6 2000 (X), Moonstone |
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Posted 26th Oct 2013 at 19:05
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cully
Seasoned Pro Location: Cullompton Registered: 12 Jun 2013 Posts: 1,093 Status: Offline |
Post #12
cool thanks stan |
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Posted 26th Oct 2013 at 20:47
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