My Sprint engine gets a bit smokey on hot idling and produces a big blue cloud on hot starting. It doesn't seem to use hardly any oil though so I am assuming its the valve stem seals and I am just refurbishing another Sprint head to swap over.
Stripping the spare head I discover its got seals on all 16 valves which was a surprise!
Anyone else have any opinions on this?
Sprint Valve Stem Seals
Sprint Valve Stem Seals
Russ Cooper
Dursley
UK
Dursley
UK
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SprintMWU773V
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Re: Sprint Valve Stem Seals
I used to find that my Sprint would smoke quite a bit on startup following an extended layup. I put this down to oil leaking from the head into the combustion chamber caused by tired valve stem oil seals. Mine was much more of a white smoke though rather than Blue.
Mark
1961 Chevrolet Corvair Greenbrier Sportswagon
1980 Dolomite Sprint project using brand new shell
2009 Mazda MX5 2.0 Sport
2018 Infiniti Q30
1961 Chevrolet Corvair Greenbrier Sportswagon
1980 Dolomite Sprint project using brand new shell
2009 Mazda MX5 2.0 Sport
2018 Infiniti Q30
Re: Sprint Valve Stem Seals
Someone has tried to cure a smokey issue before maybe? Cant do much harm fitting them If you plan on adding to the new head get a set or 2 of mini a + engine valve seals. Better quality seals are available for a series and they are the same size as sprint 
Tony
Tony
Membership 2014047
Re: Sprint Valve Stem Seals
tony g wrote:Someone has tried to cure a smokey issue before maybe? Cant do much harm fitting them If you plan on adding to the new head get a set or 2 of mini a + engine valve seals. Better quality seals are available for a series and they are the same size as sprint
Tony
Already done that!
Russ Cooper
Dursley
UK
Dursley
UK