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 Post subject: Sprint valve seals
PostPosted: Mon Jun 11, 2018 6:26 pm 
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Just been dismantling a scrap sprint head ( warped :( :( ) to salvage the valves collets collars rockers etc and found the inlet valves had valve stem seals fitted ( much bigger than the exhaust seals ), I cannot find any parts manual that show valve stem seals for the inlet valves, anyone else seen this :?: :?:

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 Post subject: Re: Sprint valve seals
PostPosted: Mon Jun 11, 2018 7:01 pm 
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Valve stem seals weren't fitted to the inlets, only exhausts.

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 Post subject: Re: Sprint valve seals
PostPosted: Mon Jun 11, 2018 7:17 pm 
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Yeah I know Mart but this head had them fitted and was wondering if anyone had come across this :)

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1977 Flamenco sprint (VGY NOW TAX AND MOT FREE :D )


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 Post subject: Re: Sprint valve seals
PostPosted: Wed Jun 13, 2018 12:40 pm 
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odd this as I would have thought you fit oil seals to inlets, otherwise the oil enters the cylinder via the inlet valve and burns giving a blue exhaust.

My Audi 100 has them on the inlets and I know when they need replacing!

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Malcolm


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 Post subject: Re: Sprint valve seals
PostPosted: Wed Jun 13, 2018 12:53 pm 
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Yeah I am perplexed by the fitting of valve stem seals to a sprint head as they have the cam buckets above , the seals fitted where larger than the exhaust ones, maybe someone being extra cautious and probably from another model , I guess I will never know as the head was from a job lot from Ebay some years back ( which also came with ST Hs8's :) ).

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1977 Flamenco sprint (VGY NOW TAX AND MOT FREE :D )


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 Post subject: Re: Sprint valve seals
PostPosted: Wed Jun 13, 2018 8:44 pm 
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I have heard of this before but not sure where the seals came from. I think those that did fit them were either being overly cautious, ignorant of the standard spec or just trying to camouflage another issue with the valves or guides.

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Mike

1980 Vermillion Sprint - 174bhp


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 Post subject: Re: Sprint valve seals
PostPosted: Wed Jun 13, 2018 8:56 pm 
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I'm sure I read somewhere that mini series engine valve stem seals fit?................Then again I do read a lot......... :shock:


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 Post subject: Re: Sprint valve seals
PostPosted: Wed Jun 13, 2018 9:52 pm 
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I'm sure I read somewhere that mini series engine valve stem seals fit?................Then again I do read a lot......... :shock:
I think we've read the same book.

Jeroen

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