Valve Adjustment The Rule of 9

The rule of 9 is sequence is for British built 4 cylinder push rod engines with a firing order of 1-3-4-2 build in the 1960-70 for valve adjustment. It's is really it is really important to know this before carrying out any adjustment using the Rule of 9. If unsure then refer to the manufactures workshop manual

Before I decided to strip this engine, it occurred to me that I could pass on some useful information on a mechanics life hack. Sometimes on engines we only know the feeler gauge gap for the tappet adjustment, but what if we need to adjust the tappets and we don't know the sequence on how to do it because of lack of information. Well the rule of 9 is a handy mechanics life hack to learn

#RuleOf9 #LifeHack #MechanicsHack

[randybeaumier]

Awesome video, Steve. I’m 64 years old and been around cars all my life and never heard about the rule of nine. Just used it on my 1991 Nissan Figaro. Your video made it a lot easier. Thanks

[shanecrawford]

Steve, I have owned my 1976 spitfire since 1977 when I joined the RCN as a very junior officer (still serving) I never knew that trick. Thanks for teaching an old commander a new trick.

[lazyschevyvracingcapri-le]

Never heard of the rule of 9, great info was looking to adjust valve clearances on a old tractor I will make life easy..Thanks

[manumores]

Apart from being very informative, the sound in this video is ace!

[johnnorth]

My first car (a 1963 mini bought as a high mileage wreck in the mid 1970's) went through several scrap yard engines and gearboxes before I found one that was decent. Valve adjustment was a well practiced art at the end and the rule of 9 was a key component as manuals of the day advised. Nowadays there is YouTube - more skill and knowledge than my brain can absorb - instantly on tap :).

[markevans]

Hi Steve i just purchased a 1970 MGB ( my first classic). I find your video's very informative for a non mechanic as myself. Great information to give me the confidence to carry out the work myself

[seanfay]

And the rule of 13 applies to 6 cylinders. Great video Steve

[njaahkbackyardbodyworks]

I have heard of the rule of nine but never understood how it was used or how to actually do it....thanks for sharing....stay healthy mate....see you in the next video

[huffysheraton]

Thanks so much! Gonna use this technique on my 1955 Ferguson tractor.

[skipgould]

Thank you Steve! I had never heard this before.

[Steve-boht]

It's a fantastic method Steve and I also use a dial test indicator on a mag base for finding the absolute valve down position, just gives that little bit of more accuracy on my Landrover series 2 petrol engine.

[roscoe]

Nice video brother, many people do not know this.

[Matijp]

Thanks for the video. I’m doing my indenor Volvo engine 1969 with 6 cylinders. Rule of 13 applies ! Thanks.

[museumlvr]

Was taught this by my dad when I was 13 still use it today. Took it to America and they freaked out.

[dodgeguy]

Thanks Steve, , , , hope your keeping well my friend, , ,

[MyBrilliantChannel]

Just done this on my Mini. Great information thank you! Would it matter if the valves were adjusted hot or cold? Thanks.

[domingoepondulan]

Thank you steve. I know now rule of 9.

[AthelstanEngland]

Thanks for the clear explaination. I've used this but a theoretical question if I may. Do you have to start with one or could you start anywhere providing you still follow the rule of 9? A follow up have you ever used the Gunson ClickAdjust tappet adjuster? I claims to replace feeler guage, spanner and screwdriver with one tool but even watching there video I can't really see how it works.

[Nikolas-qhzk]

Thanks mate, credits to you for adjusted the valves on my spit!

[philgreenges]

Great Video Steve !! Can I ask which action camera you’re using and your thoughts
Very good work ‘