My JP Minor Mk2 Restoration

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Martin1972
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My JP Minor Mk2 Restoration

Hi everyone.

New to the site today, always had an interest in all things old/vintage so I recently had the chance to purchase a somewhat rare I’m told jp minor mk2 push mower.

i thought I would have a go at restoring it, to be honest it was in reasonable condition at best to start with & the worst of it was the grass box with the usual dents & dings along the front so I started with that.

I am planning on posting regularly with regards to the restoration as I go along so I hope you will have the time to check it out & follow it as I do so.

This is my first attempt at a restoration so please bear with me.

i also found out from this site that the original paint code for this mower (or one of them) is middle bronze green or BS381C 223 so I am going with that as my color choice.

thank you 

Martin 

Clive1997
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Welcome to the forum Martin

Welcome to the forum Martin

You have certainly made a good start with the grass box, there is plenty of information on JP's both on the forum & direct from club members. As to the Mk 2's rarity, there are quite a few around I believe with several Mk1's having cropped up in recent years. Nevertheless a nice little mower to start off with. 

If you can locate the serial number we can date the mower for you, the Minor Mk 2 serial number is usually stamped on the left side frame near the front rollers & just below the top edge. Very occasionally the number is on the right side frame but more in the middle.

Keep the forum posted of the continuing restoration.

 

Regards

Clive

Martin1972
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Thank you Clive.

Thank you Clive.

i must confess this is my first foray into the vintage/antique lawnmower scene & thank you for the information regarding location of serial number.

i will be sure to have a look tomorrow for it & I’ll get back to you,it would be great if the mower could be dated as for me it would really add to to the authenticity of the mower.

as you will no doubt have seen from the images I posted earlier today I have just completed the grass box & at the moment I am in the process of finishing restoration of the handle bars which will have new grips as the originals were split & with the bars on this particular model made from 5/8 tubing i was extremely lucky to find a set of grips that fit, I am also making progress with the wooden front rollers which I might add are original.

ill be sure to keep you posted with my progress.

kindest regards

martin

Antbr123
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Hi Martin and welcome to the

Hi Martin and welcome to the forum.

Good job on the grass box restoration.  It is a 12" version? As Clive has said - advise us of the serial number and we can date it for you.  Also a photo of the mower would help as there are certain indicators to its age, eg blade thickness, colour of the balde adjustment knob, and how the bearings are mounted into the chassis sideframes.etc.It should have XM in the middle of it.  I am totally guessing here - but looking at the original colour of the grass box - I strongly suspect it is between 1955 and 1959.  For some reason JP changed the colour of the grass boxes to this lime green colour and it is difficult to trace the exact BS381C colour code.  Henry Ellis and myself have been researching this and it is becoming apparent that some mower boxes between these dates were painted this lime green colour, but the rest of the mower was painted in a different colour.  The reason for the change is not yet clear - whether it was a change in box manufacturer.  We are investigating if JP even had their own internal paint line or whether they purchased them already painted.

 

If you want any assistance - send me a message and we can discuss.  I am a total JP nut and have a number of different models, including 2 different JP Minors.  We can help direct you on where to buy replacement fasteners, the type and other details.

Antbr123 (Tony)

Antbr123 (Tony)
Consider grass in terms of how you would like to be treated yourself - and you won't go wrong!

Martin1972
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Good afternoon Clive.

Good afternoon Clive.

i successfully located the serial number for my jp minor mk2.

if you could use your knowledge and date it for me I would very much appreciate it, with regards to the continuing restoration I have included these pictures as well as the serial number, handlebar bracket (completed) handlebars primed but not painted yet! The front roller adjuster wheel/knob (completed) & the original front rollers & spindle (completed).

i appreciate your help & I hope you enjoy the pictures.

kind regards 

martin

Martin1972
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Martin1972
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Thank you Clive

Thank you Clive

i have located & added a picture of the serial number for my mower, if by chance you could date it I would appreciate it greatly.

i have also added a few more pictures of parts completed in regards to my ongoing restoration of the mower.

(By the way I am still getting to grips with the picture posting process)

kind regards

martin

 

Martin1972
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Hey tony

Hey tony

thank you for all the information it’s very much appreciated.

i have posted a picture of the serial number along with other pictures of my ongoing restoration.

kind regards 

martin

Antbr123
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Hi Martin1972,

Hi Martin1972,

Thanks for the serial number which dates the mower to May 1959 and it was the 222nd machine manufactured in that month..  I have two models dated 1956 and 1961 which shows a number of  differences in the 11" model, namely in the casting used for the grass deflector, the blade thickness, and the way the bearings were mounted into the chassis.  I would be interested to see a photo of the grass deflector on your mower as we are trying to pin down a date when the tooling changed.  Unfortunately JP do not appear to have changed the part number for the grass deflector which is XM4 3/2. Later Minor MK2 had a chequered pattern between the lettering. So, if yours is plain and not chequered we have narrowed down the tooling change to somewhere between 1959-1961.  The dating of your mower falls exactly in line with previous research suggesting that the lime green colour of your grass box was its original colour and that the rest of the mower was painted a different colour.

regards

Antbr123 (Tony)
Consider grass in terms of how you would like to be treated yourself - and you won't go wrong!

Antbr123
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Correction to dating.  It was

Correction to dating.  It was made in June not May 1959. Apologies to all for any confusion

 

Antbr123 (Tony)
Consider grass in terms of how you would like to be treated yourself - and you won't go wrong!

Martin1972
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Hi Tony

Hi Tony

picture of grass deflector as requested, it would appear that I have the chequered pattern between the lettering.

kind regards

martin

Antbr123
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Thanks Martin.

Thanks Martin.

This now confirms that the tooling for the grass deflector changed between 1956 and 1959.  Research continues!

Buy in plenty of 1/4" x 1/2" Hex Head BSF set screws and nuts.  I normally buy bright zinc plated or stainless steel.  You will need them!

Secondly, you will also need some m6 rubber washers for each side of the eccentric bar under the clips - I normally use 2 each side.

JP painted the blades the same colour as the main chassis and not red, which was a later fashion - but this is a matter of personal choice. The rear roller does not come apart - it is welded together.

Any questions - feel free to ask.

 

Antbr123 (Tony)
Consider grass in terms of how you would like to be treated yourself - and you won't go wrong!

Martin1972
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Handlebars finished with new

Handlebars finished with new grips

Triumph66
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Martin,

Martin,

Great to see another JP being restored; I have three in my collection awaiting restoration. Tony and Henry are the JP experts. Look forward to updates as and when you get there!  

Cheers

 

Andrew