1641 valve clearance setting

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Stevep
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1641 valve clearance setting

Post by Stevep » Tue Feb 06, 2018 10:01 am

Hi. Would like to know the correct valve clearance for 1641 engine Vw say 0.004 but some say 0.006 any advice please! Thanks steve


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flatbeat
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Re: 1641 valve clearance setting

Post by flatbeat » Tue Feb 06, 2018 3:50 pm

If it's got stock pushrods then 6 thou. If steel rods then you can set at 0 gap. Make sure engine is left overnight so stone cold before adjustment.
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Re: 1641 valve clearance setting

Post by JonnyCJ » Tue Feb 06, 2018 9:51 pm

Hi FB - Going to do my valve clearances in the next couple of months. Do you use sealant or just good quality cork gaskets ? I’ve heard a school of thought to use sealant on the cover side only, due to different expansion rates do the heads and the covers, but would prefer to use gaskets only if I can.

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Re: 1641 valve clearance setting

Post by vwJim » Tue Feb 06, 2018 10:20 pm

No sealants. Just a gasket, clean heat, good cover and strong bails.
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Re: 1641 valve clearance setting

Post by JonnyCJ » Tue Feb 06, 2018 10:29 pm

Thanks Jim


ted698
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Re: 1641 valve clearance setting

Post by ted698 » Wed Feb 07, 2018 2:18 pm

They changed from 0.04 to 0.06 due to the smaller setting causing burnt exhaust valves - particularly on No.3
The factory increased it to 0.06 to give a bit more clearance and tolerance on the valves.
You can run 0.04 but be very careful with frequency of gap checks and note if any keep going tight - this means the valve is stretching.

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Re: 1641 valve clearance setting

Post by Stevep » Wed Feb 07, 2018 2:47 pm

Thanks for all your advice


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Re: 1641 valve clearance setting

Post by Stevep » Sun Feb 11, 2018 12:43 pm

Just serviced my bus valves set to 0.006 and is fine no extra noise. Thanks


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Re: 1641 valve clearance setting

Post by Huw » Fri Feb 16, 2018 8:46 pm

ted698 wrote:
Wed Feb 07, 2018 2:18 pm
They changed from 0.04 to 0.06 due to the smaller setting causing burnt exhaust valves - particularly on No.3
The factory increased it to 0.06 to give a bit more clearance and tolerance on the valves.
You can run 0.04 but be very careful with frequency of gap checks and note if any keep going tight - this means the valve is stretching.


Why do it then, VW say 0.06 8)

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