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displaying posts 1 to 18 of 18
| Author | Subject: head bolt size |
 joevts
Senior User  Location: barnsley Registered: 21 May 2008 Posts: 608 Status: Offline |
Post #1
just pinched some M12 nuts from work to clamp down the liners on my XU7 when i take the head off and tried one on the VTS head bolts i have only to find it doesn't fit  IIRC the standard pitch is 1.75 but does anybody know what pitch the head bolts are? i'm guessing at 1.25, awkward french gits  |
 Posted 13th Dec 2010 at 23:18
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welshpug!
Capt Pedantic  Location: Bigend, Wales. Registered: 27 Mar 2007 Posts: 25,847 Status: Offline |
Post #2
alloy XU blocks are M11 x 1.5.________________________________________ need a part number? get on here - http://public.servicebox.peugeot.comBring on the Trumpets. |
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Posted 13th Dec 2010 at 23:19
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joevts
Senior User Location: barnsley Registered: 21 May 2008 Posts: 608 Status: Offline |
Post #3
what?!  i didn't even know M11 existed and i test nuts and bolts for a living  even M7s are like rocking horse shit so what are the XU10 bolts? and what effect does the difference have when swapping heads?also, how the hell do i clamp down the liners without some M11 nuts?  |
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Posted 13th Dec 2010 at 23:26
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welshpug!
Capt Pedantic Location: Bigend, Wales. Registered: 27 Mar 2007 Posts: 25,847 Status: Offline |
Post #4
xu10 are M12 x 1.5 IIRC.use the original head bolts (maybe cut down) with spacers. M7 are relatively common on pugs  ________________________________________ need a part number? get on here - http://public.servicebox.peugeot.comBring on the Trumpets. |
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Posted 13th Dec 2010 at 23:38
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joevts
Senior User Location: barnsley Registered: 21 May 2008 Posts: 608 Status: Offline |
Post #5
yeah but i'm a tight git and chopping up the bolts will mean i need to buy new ones by relatively common you mean there are one or two i pinched one out of a BE gearbox and ground the head to a mushroom to replace the rocker adjuster bolt that snapped on my 309 |
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Posted 13th Dec 2010 at 23:49
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welshpug!
Capt Pedantic Location: Bigend, Wales. Registered: 27 Mar 2007 Posts: 25,847 Status: Offline |
Post #6
They're only £15 or so for a set.________________________________________ need a part number? get on here - http://public.servicebox.peugeot.comBring on the Trumpets. |
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Posted 14th Dec 2010 at 00:00
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joevts
Senior User Location: barnsley Registered: 21 May 2008 Posts: 608 Status: Offline |
Post #7
and i don't even have so much as a hacksaw at the garage. how important is it that the liners are clamped? and how securely do they need to be clamped? |
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Posted 14th Dec 2010 at 00:17
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welshpug!
Capt Pedantic Location: Bigend, Wales. Registered: 27 Mar 2007 Posts: 25,847 Status: Offline |
Post #8
depends if you have ensured the bottom end has no chance of moving till the head is back on and bolted down.its all just in effort to save having to replace a few quid's worth of liner seals to replace said seals would mean dropping the sump off and unbolting the big ends, and removing the liner and piston in one go. ________________________________________ need a part number? get on here - http://public.servicebox.peugeot.comBring on the Trumpets. |
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Posted 14th Dec 2010 at 00:21
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rallyeash
Seasoned Pro  Location: Devizes Registered: 11 Dec 2006 Posts: 4,424 Status: Offline |
Post #9
if youre fitting new liner seals use grease or vaseline around the seal at the bottom of the liner. i split a seal once fitting a liner... lucky i thought i did so i checked before i fitted the head________________________________________ 230 hp 2.1 16v XU 205 rallye on jenveys Project thread here309 3dr K20 Type R |
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Posted 14th Dec 2010 at 00:38
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rallyeash
Seasoned Pro Location: Devizes Registered: 11 Dec 2006 Posts: 4,424 Status: Offline |
Post #10
joevts wrote: and i don't even have so much as a hacksaw at the garage. how important is it that the liners are clamped? and how securely do they need to be clamped? how are you building an engine without any tools  ________________________________________ 230 hp 2.1 16v XU 205 rallye on jenveys Project thread here309 3dr K20 Type R |
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Posted 14th Dec 2010 at 00:39
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joevts
Senior User Location: barnsley Registered: 21 May 2008 Posts: 608 Status: Offline |
Post #11
i wasn't aware that a hacksaw was one of the tools necessary to build an engine i'm not planning on stripping the whole bottom end down to replace the seals unless i really have to. why do they move so easily anyway? are they really that loose in the block? |
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Posted 14th Dec 2010 at 00:53
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rallyeash
Seasoned Pro Location: Devizes Registered: 11 Dec 2006 Posts: 4,424 Status: Offline |
Post #12
joevts wrote: i wasn't aware that a hacksaw was one of the tools necessary to build an engine your doing it all wrong then! but saying i don't even have so much as a hacksaw gives the impression youve no tools atall.. they move easily (ish) but dont need to be any tighter as obviously the head holds the secure. i guess you have the bottom end on a stand and want to swing it upside down hence bolting the liners? or are they lifting up when trying to turn the engine over by hand ________________________________________ 230 hp 2.1 16v XU 205 rallye on jenveys Project thread here309 3dr K20 Type R |
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Posted 14th Dec 2010 at 00:59
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joevts
Senior User Location: barnsley Registered: 21 May 2008 Posts: 608 Status: Offline |
Post #13
rallyeash wrote: joevts wrote: i wasn't aware that a hacksaw was one of the tools necessary to build an engine your doing it all wrong then! but saying i don't even have so much as a hacksaw gives the impression youve no tools atall.. they move easily (ish) but dont need to be any tighter as obviously the head holds the secure. i guess you have the bottom end on a stand and want to swing it upside down hence bolting the liners? or are they lifting up when trying to turn the engine over by hand i know i made it sound like i had no tools, sorry i have access to more tools at work if i need them, but i just want to take the head off tomorrow because someone might want to buy it, and then the engine will have paid for itself  i was hoping just a few sockets etc and a female torx bit would do the job.obviously they aren't going anywhere at the minute cos the head is still on, but i don't want to create a load more work for myself i.e. having to strip the whole bottom end down for the sake of a few shitty seals and no, it's not on a stand, it was leaned on a bag of sand last time i saw it |
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Posted 14th Dec 2010 at 01:09
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joevts
Senior User Location: barnsley Registered: 21 May 2008 Posts: 608 Status: Offline |
Post #14
ok so if push comes to shove and i end up chopping the bolts, how long do they need to be? and how wide do the washers need to be? |
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Posted 14th Dec 2010 at 01:28
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rallyeash
Seasoned Pro Location: Devizes Registered: 11 Dec 2006 Posts: 4,424 Status: Offline |
Post #15
im sure ive actually got a set of old Xu7 head bolts from my old alloy blocked mi16/gti6 Hybrid.will have a look when im next up my workshop ________________________________________ 230 hp 2.1 16v XU 205 rallye on jenveys Project thread here309 3dr K20 Type R |
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Posted 14th Dec 2010 at 01:32
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joevts
Senior User Location: barnsley Registered: 21 May 2008 Posts: 608 Status: Offline |
Post #16
so how did you clamp the liners down then? or did you strip the whole thing down? |
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Posted 14th Dec 2010 at 06:19
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joevts
Senior User Location: barnsley Registered: 21 May 2008 Posts: 608 Status: Offline |
Post #17
got the head off, i was expecting to need a female torx socket for the head bolts, but it was a male T55, not only that but the ½" drive T55 wouldn't fit down the hole so i had to buy a 3/8" drive one for the job. can't really see the liners going anywhere, they felt pretty solid to me. crank pulley looks to have slipped about 150 degrees but i had the top end timed up and don't think the crank's moved. should the pistons be at about the same level but with the outer two a few mm higher? |
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Posted 15th Dec 2010 at 05:56
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welshpug!
Capt Pedantic Location: Bigend, Wales. Registered: 27 Mar 2007 Posts: 25,847 Status: Offline |
Post #18
should all be dead level, sounds like the pulley had started to move last time the belt was done or its moved, either way I'd get the liners clamped some way or another then sort the bottom end's timing.________________________________________ need a part number? get on here - http://public.servicebox.peugeot.comBring on the Trumpets. |
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Posted 15th Dec 2010 at 22:30
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