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+--- Thread: Stripping head, more engine questions :) (/showthread.php?tid=19944)
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RE: Stripping head, more engine questions :) - Chris_90 - 24-01-2014
Bumping this up again.
How do I remove the valve stem seals/refit them with out killing them?
I see there threaded so do I use pliers to twist them on/off? Or is there another way?
Thanks in advance
RE: Stripping head, more engine questions :) - powerandtorque - 24-01-2014
Valve stem seal pliers is the proper/easy way.
You can normally fit new ones (don't ever re-use old ones) using an appropriate deep socket to gently tap them into place
(29-12-2013, 04:12 PM)Piggy Wrote: And I wana come to your engineering firm...my local charged me over a £100 for a skim n test
Depending which side of the Cotswolds you're on, give Gardias Engine Services in Witney a shout - that's who has done all my engine machining work for years now. They do an excellent job and they're reasonably priced - from memory a skim is about £35 for example.
RE: Stripping head, more engine questions :) - Frosty - 24-01-2014
Rip the old valve steam seals off with pliers and then fit new 1s. They aren't very expensive and if you get a head set they should be included
RE: Stripping head, more engine questions :) - Piggy - 24-01-2014
go steady with pliers...the valve guides are quite soft, I have damaged one in past being too hasty
(24-01-2014, 12:46 PM)powerandtorque Wrote:(29-12-2013, 04:12 PM)Piggy Wrote: And I wana come to your engineering firm...my local charged me over a £100 for a skim n test
Depending which side of the Cotswolds you're on, give Gardias Engine Services in Witney a shout - that's who has done all my engine machining work for years now. They do an excellent job and they're reasonably priced - from memory a skim is about £35 for example.
thats the firm I used!!!...it was near whitney anyway, two old blokes ina well kitted two storey workshop on a little trading estate
RE: Stripping head, more engine questions :) - Chris_90 - 24-01-2014
I've got a genuine Peugeot head set so I am replacing them just want to no how to get them on with out damaging as there threaded so carnt see tapping them on doing them any good?
RE: Stripping head, more engine questions :) - Piggy - 24-01-2014
threaded?! they will have little ridges, but seals arent threaded!?
a 11mm or 12mm socket I think it is (deep) wiil hold nicely over one, and gently tap with a rubber mallet till the tone changes
make sure its nice n square before you tap it
RE: Stripping head, more engine questions :) - Chris_90 - 24-01-2014
(24-01-2014, 02:06 PM)Piggy Wrote: threaded?! they will have little ridges, but seals arent threaded!?
a 11mm or 12mm socket I think it is (deep) wiil hold nicely over one, and gently tap with a rubber mallet till the tone changes
make sure its nice n square before you tap it
Oooo thought it was threaded
this is why u ask questions cos I would have been sat trying to twist it on ha ha! We'll I will tap them on then
just stripping it down ready to take it to be skimmed And tested.... Will update when I brake something
RE: Stripping head, more engine questions :) - Piggy - 24-01-2014
then when you got to refit the valves, make sure they are super clean with a little lube on the top end of valve so as to not damage the new seals
RE: Stripping head, more engine questions :) - powerandtorque - 24-01-2014
I would fit the new seals after the head has come back from being skimmed and cleaned, not before.
RE: Stripping head, more engine questions :) - Chris_90 - 24-01-2014
(24-01-2014, 02:23 PM)Piggy Wrote: then when you got to refit the valves, make sure they are super clean with a little lube on the top end of valve so as to not damage the new seals
Ok will do that thanks
(24-01-2014, 02:37 PM)powerandtorque Wrote: I would fit the new seals after the head has come back from being skimmed and cleaned, not before.
Yer that's the plan anyway thanks
RE: Stripping head, more engine questions :) - Chris_90 - 11-02-2014
Bump up on this head come back from its skim and pressure Test, gonna start rebuilding it tomorrow.
How do I remove the injector fire seals?
RE: Stripping head, more engine questions :) - Tom - 11-02-2014
Dig em out with a screw driver
RE: Stripping head, more engine questions :) - Chris_90 - 11-02-2014
(11-02-2014, 04:00 PM)Tom Wrote: Dig em out with a screw driver
Is that only way? Bit risky if they fall inside head and carnt get them back out? Or can they only come one way?
RE: Stripping head, more engine questions :) - zx_volcane - 11-02-2014
You talking the silver fire seals or the copper injector seals?
Ideally you'd get them out with some picks
But tapping with a small screwdriver and tap them gently with a hammer to loosen them if they're stuck.
Easier to see what you're doing if you get a torch in there too.
The copper washers can be a bit of a bugger, but tapping them round gently with a screwdriver until they break loose is the way. You may have to tap away to bend them, almost cut them in half if they're that seized in.
Again, be careful to try and not damage the the ali under them. The copper is pretty soft and you can end up marking the injector seat underneath.
You can get the injector seats cut again if you do mangle them. You may have to run slightly thicker copper washers to compensate though if you do.
Is the head thats off the car? If so, any bits do fall down the hole, you can blow them through with an airline and they'll come out through the precup holes.
RE: Stripping head, more engine questions :) - Chris_90 - 11-02-2014
That's good info there zx thanks it is the small silver seals I'm on about, got the copper washers out already, I will give it ago ttomorrow but if worst comes to worst shal I just leave them as they are and not bother replacing them?
RE: Stripping head, more engine questions :) - zx_volcane - 11-02-2014
If you can't get them out, put new one in on top of the old ones
You deffo want them in
RE: Stripping head, more engine questions :) - Chris_90 - 11-02-2014
(11-02-2014, 08:32 PM)zx_volcane Wrote: If you can't get them out, put new one in on top of the old ones
You deffo want them in
Ok mate thanks will update how I get on with it tomorrow
RE: Stripping head, more engine questions :) - Chris_90 - 12-02-2014
removed the fire seals easy!
Next issues are one injector in the old head is just spinning and will not come out what so ever any one got any tips on how i can get it out?
next is valve clearances what do i need to do???
RE: Stripping head, more engine questions :) - Tom - 12-02-2014
For the injector get a screwdriver on it leavering it out whilst you turn it slowly. Didnt know you do valve clearances on these?
RE: Stripping head, more engine questions :) - Chris_90 - 12-02-2014
(12-02-2014, 02:25 PM)Tom Wrote: For the injector get a screwdriver on it leavering it out whilst you turn it slowly. Didnt know you do valve clearances on these?
Tied that no joy, and no didnt check because i didnt no i needed to
RE: Stripping head, more engine questions :) - zx_volcane - 12-02-2014
valve clearances are in haynes
off the top of my head i think they are
0.15mm intake and 0.3mm exhaust
but do double check
Thing is even if its out, you would need to find some different sized shims from somewhere to get them to spec. Peugeot do sell them, but not sure how much they are.
My engine recon place checks and reshims if necessary with a head skim, prob worth asking your place if yours is out as they should have a tin of shims
RE: Stripping head, more engine questions :) - Chris_90 - 12-02-2014
(12-02-2014, 03:46 PM)zx_volcane Wrote: valve clearances are in haynes
off the top of my head i think they are
0.15mm intake and 0.3mm exhaust
but do double check
Thing is even if its out, you would need to find some different sized shims from somewhere to get them to spec. Peugeot do sell them, but not sure how much they are.
My engine recon place checks and reshims if necessary with a head skim, prob worth asking your place if yours is out as they should have a tin of shims
Yer there right measurements just reading the Haynes now, gonna be a pain as I messed the buckets up with the shims in as didn't realise it made a difference, never mins live and learn will have a look at it tomorrow, just picked up a feeler gauge to test the gaps.