Ransomes Ajax Mk5 refurb

26 posts / 0 new
Last post
Warpa
Offline
Last seen: 23 hours 2 min ago
Joined: 21/09/2019 - 14:46
Ransomes Ajax Mk5 refurb

I have some questions as I've never restored anything before.

Do you wire brush the nuts and bolts up so they look newish again?

Is the silver cover supposed to be painted or an aluminium finish?

Are my selection of flappy discs good to clean up all the heavier corroded parts?

Can I refurbish the cylinder myself or is that best to be sent off and dipped?

I also need the following parts if anyone can help.

Part 50 Carriage left hand

Part 35 Setscrew scraper

 

Lee Smallwood
Offline
Last seen: 5 hours 3 min ago
Joined: 12/02/2018 - 16:41
The side plates aren't

The side plates aren't painted,, I've seen them highly polished or left with a patina,  I've sent some cylinders off to get media blasted, I've also used a wire wheel in a cordless drill to clean them up followed by sanding by hand, depends on the restoration and if it warrants any expenditure, for the nuts and bolts, a wire brush is fine, wire wheel on a bench grinder gives a little more control though, a flappy disc will take metal with it so be gentle if you use one, but it will sort the pitting out a little faster than sanding,( especially by hand) 

Lots of mk 5s around for sale on eBay and the like, shouldn't be hard to find a doner.

What I have found on the the handful of mowers I've tidied up, you can never have enough notes, photos and little labels,  it can be weeks before the mower is being put back together, especially if sourcing spare parts, or waiting for refurbished parts to be returned, it can get confusing if you have everything in one oily box... 

 

 

Warpa
Offline
Last seen: 23 hours 2 min ago
Joined: 21/09/2019 - 14:46
I've found the roller part I

I've found the roller part I need, just need the set screw, but may just buy 2 new ones. I've not stripped it fully but will label everything in sandwich bags ( I should know better as all i watch on TV are car restoration programs)

I have metal polishing equipment albeit not professional but I can still make a mirror finish from a rusty piece of metal. I have a brand new grass collector and it doesn't look like there is any lacquer, did they use it in the old days or is the Ransomes green paint the final finish?

One last question, when I grind down all the pitted corroded parts, will metal primer and undercoat be enough before the green goes on?

cwj123
Online
Last seen: 4 min 34 sec ago
Joined: 17/04/2016 - 18:32
All mine have painted sides.

All mine have painted sides.

Warpa
Offline
Last seen: 23 hours 2 min ago
Joined: 21/09/2019 - 14:46
Was that the factory finish

Was that the factory finish or a part of restoration? Mine looks untouched and still had green paint on the inside of the rollers, if the sides are aluminium I dont see why Ransomes would paint it.

wristpin
wristpin's picture
Offline
Last seen: 1 hour 41 min ago
Joined: 23/05/2012 - 22:09
Bear in mind that although a

Bear in mind that although a better quality machine of their day they were just a working tool and any form of bling would have been out of the question. As far as nuts and bolts and other hardware goes it would probably have been "black iron" in natural finish - no stainless, no plating and no polishing. possibly a bit of silver paint. 

Patina is only original once!

cwj123
Online
Last seen: 4 min 34 sec ago
Joined: 17/04/2016 - 18:32
Original from factory there

Original from factory there is one for sale on ebay at the moment clearly showing paint.

wristpin
wristpin's picture
Offline
Last seen: 1 hour 41 min ago
Joined: 23/05/2012 - 22:09
Original from factory there

Original from factory there is one for sale on ebay at the moment clearly showing paint.

If it's the one with the "white marble" front roller , I very much doubt that the green painted side plates are original.

Edit. Second thoughts! The drive side, cover looks similar to the Anglia so were the Mk2s painted iron/steel  and not alloy? One for Clive, me thinks.

Antbr123
Offline
Last seen: 18 hours 10 min ago
Joined: 02/08/2018 - 09:51
Do you wire brush the nuts

Do you wire brush the nuts and bolts up so they look newish again?

Two options open to you.

1.  Buy new fasteners.  Readily available from sources on this website (Namrick).  I use Mike Peters at www. Polished-Stainless.com also known as Surplus Supplies.  Tel 01636 636735 He is always helpful, and very quick delivery.  You will need to know the thread type. BSF? It is personal choice if you go this route as most modern manufactured fasteners have rounded edges and not flat surfaces as old imperial fasteners.

2.  Soak the original fasteners in white wine vinegar or cider vinegar. for 2 days  Its cheap from supermarkets. Afterwards use a small wire brush.  It is worthwhile investing in a set of die nuts which can be used to clean threads of shafts, bolts, set screws etc, particularly if you get the bug and intend to restore multiple mowers. I use Tracey Tools Tel 01803 328603

Regarding the vinegar - I buy it in bulk from Amazon, but it is superb at getting rid of rust.  I use it in a plastic garden planter and even soak larger items, such cylinder blades after paint stripping. It is apparently sold to Chinese takeaway restaurants..It is 5% acidic so is safe to get on your hands, and even after 2 weeks of soaking parts have not been eaten away...but the rust removal is effortless. I do recommend washing your hands afterwards...just to be on the safe side.

regards,

Tony

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

cwj123
Online
Last seen: 4 min 34 sec ago
Joined: 17/04/2016 - 18:32
The sides see ebay 

The sides see ebay 

283634014056

Clive1997
Offline
Last seen: 1 hour 50 min ago
Joined: 14/10/2010 - 20:41
A bit expensive I often

A bit expensive I often struggle to get £10 for a whole mower or sometimes can't give them away, there are many Ajax's out there.

cwj123
Online
Last seen: 4 min 34 sec ago
Joined: 17/04/2016 - 18:32
Not to buy but to show paint

Not to buy but to show paint.Clive could you see if sides painted on others you have?Thanks

Warpa
Offline
Last seen: 23 hours 2 min ago
Joined: 21/09/2019 - 14:46
Rather than going the full

Rather than going the full restoration on this Ajax would I be better off using it as a learning curve for a Certes? The mowers i do will be used by myself.

Warpa
Offline
Last seen: 23 hours 2 min ago
Joined: 21/09/2019 - 14:46
Part 35 setscrew scraper I

Part 35 setscrew scraper I cant find to replace as I have no idea what its technical name is.

 

hortimech
Offline
Last seen: 2 hours 1 min ago
Joined: 08/04/2013 - 17:02
Yes you do, it is a setscrew

Yes you do, it is a setscrew that holds the scraper on ;-)

A bolt is, well, a bolt that isn't threaded all the way down, a setscrew is a bolt that is threaded all the way down.

Are you sure that is the right setscrew ? (the one in the pictures), I would have expected one with a hexagon head and that appears to be one with an allen key head. The other thing to note, it will not be a metric fixing, it will probably be a BSF fixing, but may be a UNF one.

AUTO CERTES 1
Offline
Last seen: 1 day 8 hours ago
Joined: 14/04/2017 - 22:32
This is a picture of my mk5

This is a picture of my mk5 Ajax. You should be able to see the original hammerite silver paint on the aluminium side plates.

cwj123
Online
Last seen: 4 min 34 sec ago
Joined: 17/04/2016 - 18:32
Yes thats the paint that

Yes thats the paint that mines are,so must be original.

wristpin
wristpin's picture
Offline
Last seen: 1 hour 41 min ago
Joined: 23/05/2012 - 22:09
This is a picture of my mk5

This is a picture of my mk5 Ajax. You should be able to see the original hammerite silver paint on the aluminium side plates.

Yes thats the paint that mines are,so must be original.

I think that you may be going down a dangerous road with the use of "must".  I have two unrestored Ajax , a Mk3 and a Mk5  and neither have  any sign of hammer finish paint on the side plates . Note "hammer finish" not Hammerite which was the trade mark of the hammer finish paint sold by Finnigans  of Prudoe  and still is that of the  AkzoNobel company who now own the brand.

Set screws. I would suggest that those socket head set screws are not original as I've never seen socket head hardware on Ajax machines. As observed by Hortimech , hex head would be more likely.

As has already been discussed, it was common practice for cutting cylinders to be stripped and repainted . We would often tidy up a used Ajax for sale by rubbing down the side plates and giving them a blow over with whatever silver paint was to hand or even just a clear lacquer.  The deflector plates would also be stripped, de-rusted and repainted with whatever green or black paint was in the gun. While on the subject of deflector plates, did all genuine Ransomes ones have pressed in vertical stiffening swages ? One of my machines has, the other has not, but has a neat horizontal turned over stiffener along the top edge  - original or a dealer made replacement? 

cwj123
Online
Last seen: 4 min 34 sec ago
Joined: 17/04/2016 - 18:32
You are quite right,should

You are quite right,should have said looks as though.

Warpa
Offline
Last seen: 23 hours 2 min ago
Joined: 21/09/2019 - 14:46
I did wonder about the

I did wonder about the setscrew being an alen key head on it. I also see in the last photo the roller is not painted, mine has a bit of green paint left on the inside. I prefer the un painted finish myself.

Am I safe to say that I can pretty much go for whatever colour scheme I want whether its sold on as a refurb or kept for myself? My choice would be unpainted roller and polished and lacquered sides. I also prefer the handle joiner in silver instead of red.

When I refurb a Certes it will be a personal bling model with new stainless fixings.

Warpa
Offline
Last seen: 23 hours 2 min ago
Joined: 21/09/2019 - 14:46
How do I remove this last cog

How do I remove this last cog? It doesn't feel as though it wants to pop off so I'm assuming it needs to be unscrewed somehow?

Warpa
Offline
Last seen: 23 hours 2 min ago
Joined: 21/09/2019 - 14:46
The quality was awful, here's

The quality was awful, here's another.

 

Warpa
Offline
Last seen: 23 hours 2 min ago
Joined: 21/09/2019 - 14:46
I found an old post on here

I found an old post on here about how to remove it. The final piece to remove is the spindle from the plate, how do I manage that?

 

Antbr123
Offline
Last seen: 18 hours 10 min ago
Joined: 02/08/2018 - 09:51
You should be able to knock

You should be able to knock or gently tap the pin through the shaft.  I use a flat centre punch.  Do not welly it...you are likely to burr over the end of the pin making life difficult for yourself....Once you have got movement keep tapping it all the way through the shaft until you have enough purchase on the other end to pull it out.

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

Warpa
Offline
Last seen: 23 hours 2 min ago
Joined: 21/09/2019 - 14:46
Erm, what could go wrong is

Erm, what could go wrong is that I sheared it. I cant for the life of me find a spare any where.

wristpin
wristpin's picture
Offline
Last seen: 1 hour 41 min ago
Joined: 23/05/2012 - 22:09
What diameter ?

What diameter ?