www.ukengineforum.forumotion.com
Please log in , the forum is open to guests who are now able to view most sections, feel free to become a member , you will then be able to post and reply to topics.

Join the forum, it's quick and easy

www.ukengineforum.forumotion.com
Please log in , the forum is open to guests who are now able to view most sections, feel free to become a member , you will then be able to post and reply to topics.

Valve Lapping

5 posters

Go down

Valve Lapping Empty Valve Lapping

Post by Woodsman Wed Jul 06 2022, 15:51

Just in case anyone hasn't come across this one I thought I'd post a tip from an old car restorer friend.
Short length of flexible pipe to suit valve stem and ditto piece of sawn off bolt/nail at t'other end.  
Connect drill and away you go.

Valve Lapping 20220715


Last edited by Woodsman on Thu Jul 07 2022, 10:41; edited 1 time in total (Reason for editing : typo)

_________________
Regards Paul
Tha can alus tell a Yorkshireman - but tha can't tell him much.
Woodsman
Woodsman
Admin

Posts : 2810
Join date : 2014-08-24
Age : 73
Location : God's own county

Back to top Go down

Valve Lapping Empty Re: Valve Lapping

Post by maryalice Wed Jul 06 2022, 23:27

You obviously dont like hard work Very Happy Very Happy

maryalice
Life Member
Life Member

Posts : 1302
Join date : 2010-01-23
Age : 70
Location : Bedfordshire

Back to top Go down

Valve Lapping Empty Re: Valve Lapping

Post by wristpin Tue Mar 14 2023, 13:52

I was taught that continuous rotation was the wrong thing to do, and that back and forth, lift, move round a bit and repeat - several times. Then wipe off, inspect and repeat again as necessary.
Spinning with a drill was known as "a hanging offence"!!
wristpin
wristpin
I really need to post more
I really need to post more

Posts : 7
Join date : 2013-03-31
Location : Romney Marsh, Kent

Back to top Go down

Valve Lapping Empty Re: Valve Lapping

Post by Woodsman Tue Mar 14 2023, 17:04

Agree entirely -  should have been more explicit . Apologies.


Last edited by Woodsman on Mon Mar 11 2024, 16:18; edited 1 time in total

_________________
Regards Paul
Tha can alus tell a Yorkshireman - but tha can't tell him much.
Woodsman
Woodsman
Admin

Posts : 2810
Join date : 2014-08-24
Age : 73
Location : God's own county

Back to top Go down

Valve Lapping Empty Re: Valve Lapping

Post by tony RA Thu Mar 16 2023, 01:17

I totally agree with Wristpin having been a mechanic for 60 years and using a drill was no no back and forth is the only way to seat a valve properly

tony RA
A credit to the forum
A credit to the forum

Posts : 279
Join date : 2013-11-16
Age : 77
Location : newtown powys

Back to top Go down

Valve Lapping Empty Re: Valve Lapping

Post by mattblack Thu Mar 16 2023, 06:32

https://www.ebay.co.uk/itm/354067905320?hash=item5270177b28:g:nUEAAOSwwORihiky&amdata=enc%3AAQAHAAAA4OZyZexv656MhT80f4q42EAFBoZ9aVaRAjw9BP0y8VnnvJEmC4e%2FbSdjh724VenthLJJoMw1Y%2Fe8TGlWva%2Fm58ew3nLt9psQWoXcg0QBEet%2FK06x4nblZLysnrcIa%2BtTe44KTaHCt0DAVXmQR2vajHItS%2B0XzegIpg0PVNPYuFX7Ido90jwKFDpWUkgucZQ%2F%2BiTs2F91LG9Pu26xVVn%2FT6Rmp8oVd3ppD5fGA2kKOTJpTFOcduM6hqMB0GPczffvEZ0zxqhp1stpNoC2wAtLv73g4gWmvNYrxguJEZUSs9fy%7Ctkp%3ABk9SR6ii35HdYQ

_________________
Specialist in precision guesswork.
mattblack
mattblack
Life Member
Life Member

Posts : 886
Join date : 2019-06-21
Location : Leicester, me duck...

Back to top Go down

Valve Lapping Empty Re: Valve Lapping

Post by Sponsored content


Sponsored content


Back to top Go down

Back to top

- Similar topics

 
Permissions in this forum:
You cannot reply to topics in this forum