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Darmic1
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Quote Darmic1 Replybullet Topic: Restoration of Rotary Hoes Gem series 2
    Posted: 26 Nov 2010 at 9:47pm
I have been looking for a while for a site to post the pictures of a project I have just completed.  This is the day it arrived......
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lawnmowerboy
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Quote lawnmowerboy Replybullet Posted: 26 Nov 2010 at 9:53pm
looks as if its sat outside judging by the colour of the top of the mag
Grow old, not up!!!
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Darmic1
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Quote Darmic1 Replybullet Posted: 26 Nov 2010 at 9:55pm
It had been stored in a garage for some years, no spark when it arrived, and a liberal coating of non standard red paint with just a touch of rust and oil....
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lawnmowerboy
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Quote lawnmowerboy Replybullet Posted: 26 Nov 2010 at 9:56pm
the decals look good though
can you get a pic of the whole machine or the serial number and one of the howasd experts may be able to date it!
Grow old, not up!!!
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Darmic1
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Quote Darmic1 Replybullet Posted: 26 Nov 2010 at 9:58pm
Decals were not original, underneath the red paint lurked the remains of the original rotary hoes decals. I do have more photos, but im not able to post them for some reason?? Help
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mowersman
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Quote mowersman Replybullet Posted: 26 Nov 2010 at 10:06pm
Originally posted by lawnmowerboy

the decals look good though
can you get a pic of the whole machine or the serial number and one of the howasd experts may be able to date it!
The mag cap is aluminum. it was the military spec sheilded type mag, often seen fitted to these for some reason
The more I work with petrols, the more I like diesels...
Yeovil, Somerset
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Darmic1
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Quote Darmic1 Replybullet Posted: 26 Nov 2010 at 10:09pm
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Darmic1
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Quote Darmic1 Replybullet Posted: 26 Nov 2010 at 10:12pm
Is the 3rd picture the serial number? or just the engine number?
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lawnmowerboy
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Quote lawnmowerboy Replybullet Posted: 26 Nov 2010 at 10:18pm
im not sure wait for series1gem to pop up hed the expert on howards on here
Grow old, not up!!!
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Darmic1
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Quote Darmic1 Replybullet Posted: 26 Nov 2010 at 10:27pm
I found some information relating to a rough age and series by researching when the differences were made. ie no reverse and reverse, series 1 and 2 then lever gear change to quadrant gear change series 2 and 3. This one definately has a reverse lift gear lever and also has lever gear change. So by process of elimination it must be a series 2 approx age 1947 to 1948 possibly?
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Darmic1
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Quote Darmic1 Replybullet Posted: 26 Nov 2010 at 10:37pm
The machine was missing some parts and had obvious damage to others.
The air cleaner was missing completely. The chain case was holed, I guess the chain had snapped previously and was repaired with either window putty or chewing gum..... The valve chamber was damaged at the exhaust outlet and burned right through. The rotors were seized solid, having been stood for a while up to its axles in water, The rust line around chain case indicated this.,
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Darmic1
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Quote Darmic1 Replybullet Posted: 26 Nov 2010 at 10:48pm
Decided the best way was to start with the engine, Degrease it with parts wash. Then a wire wheel on a drill to remove all the rust and old paint... Once cleaned to bare metal it was degreased with cellulose thinners to remove any contaminants. Then had several coats of etch primer... 
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Darmic1
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Quote Darmic1 Replybullet Posted: 26 Nov 2010 at 11:40pm
Once the engine was in primer, I decided to start on the rest, Fuel tank, Oil filter, Frame and Gearbox.... Same treatment as the engine.
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Darmic1
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Quote Darmic1 Replybullet Posted: 26 Nov 2010 at 11:45pm
I have a good friend who is an excellent steel fabricator, as the rotor case was as rotten as, I asked him to replicate the old one for me. He made a fantastic job! These picture show it being refitted so the  bolt holes could be drilled.
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Darmic1
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Quote Darmic1 Replybullet Posted: 26 Nov 2010 at 11:56pm
The new parts had arrived, New air cleaner, replacement valve chamber, gaskets etc.... Engine reassembled, valve clearances set, Engine now painted in 4 coats of 2K. What a transformation! Other parts now painted include Oil Filter and control levers.
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lawnmowerboy
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Quote lawnmowerboy Replybullet Posted: 27 Nov 2010 at 8:18am
looking great nice one!!!
youre lucky with those rotor covers as there like 200 from standens
Grow old, not up!!!
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series1gem
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Quote series1gem Replybullet Posted: 27 Nov 2010 at 9:31am
Hi, the number shown was just the engine number, you will find the serial number between the fuel tank and the handle bolt, starting G, contact forum member roses dad if you want some original decals.
If it isnt orange it isnt a rotavator
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lawnmowerboy
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Quote lawnmowerboy Replybullet Posted: 27 Nov 2010 at 9:36am
dont you think the crack on the cylinder head bolthole will be a problem especially as it gets hot and makes it worse possibly cracking the whole barrel
ive used 2 pack epoxy resin to fix holes and cracks in cylinder heads
Grow old, not up!!!
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series1gem
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Quote series1gem Replybullet Posted: 27 Nov 2010 at 9:37am
Originally posted by Darmic1

I found some information relating to a rough age and series by researching when the differences were made. ie no reverse and reverse, series 1 and 2 then lever gear change to quadrant gear change series 2 and 3. This one definately has a reverse lift gear lever and also has lever gear change. So by process of elimination it must be a series 2 approx age 1947 to 1948 possibly?
Series 2 production started at G4800,in we believe 1947 some very late series 1s are believed to have had a reverse, but they didnt have the words The Gem on the chain case cover. The quadrant gear lever was introduced in late 1949 with the introduction of the series 3. for more info see my website www.howardgem.webs.com
If it isnt orange it isnt a rotavator
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Darmic1
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Quote Darmic1 Replybullet Posted: 27 Nov 2010 at 11:16am
The damage to the valve chamber in pictures 6,7,8 and 9 meant it was beyond repair. It had a crack as you said which had been brazed by previous owner, The exhaust outlet was burnt through in 2 places and the outlet itself was broken. I did enquire about cast welding... Much cheaper to source replacement. Mr Hudson was able to help with that.
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Darmic1
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Quote Darmic1 Replybullet Posted: 27 Nov 2010 at 11:29am
The Number on the frame is G8534, so I would be right to think a series 2?
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series1gem
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Quote series1gem Replybullet Posted: 27 Nov 2010 at 11:35am
Yes a series 2 ,series 3 started at G14785
If it isnt orange it isnt a rotavator
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Quote Darmic1 Replybullet Posted: 27 Nov 2010 at 11:36am
Here are some more pictures from the restoration, note the damaged clutch plate top right. Its like crumbling...
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series1gem
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Quote series1gem Replybullet Posted: 27 Nov 2010 at 11:38am
they often look like that, its caused by a combination of the age, the amount of use and the flywheel luggs catching as the engine is slid off.
If it isnt orange it isnt a rotavator
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Darmic1
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Quote Darmic1 Replybullet Posted: 27 Nov 2010 at 11:53am
More Pictures as things progress... Had a huge amount of difficulty removing the clutch from the shaft, Took nearly a week of soaking with penetrating spray, then using freeze unlock. Tried using a bearing puller on the metal parts, still wasnt playing fair... was about to give up and make the call.....DAD? When it decided to fall off overnight having been left with tension on from the bearing puller!
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Darmic1
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Quote Darmic1 Replybullet Posted: 27 Nov 2010 at 12:04pm
More pictures, New clutch plate fitted, unfortunately no pictures of this as trying to lift engine, hold camera and insert bolts whilst working solo is a bit of a no no.... I didnt realise just how heavy the completed engine is!
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Darmic1
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Quote Darmic1 Replybullet Posted: 27 Nov 2010 at 12:16pm
Tank and Handlbars back on machine, Oil pipes and fuel lines refitted. Had to get some pipes repaired as they were flattened. Just had the damaged part cut out and a new piece joined in with compression fittings.
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Darmic1
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Quote Darmic1 Replybullet Posted: 27 Nov 2010 at 12:31pm
New Tyres, Air Filter Hose and other parts refitted. Attempted to start it, wouldnt run, kept popping and backfiring. Timing suspect? Also no oil returning to the filter and tank. Removed oil pipes to discover oil feed to sump ok, but no return. Removed oil pump to discover it faulty and not able to turn. I dismantled the oil pump and discovered it had taken a whack to the brass on the front near to the fulcrum bolt, thus pinching the plunger and rendering the pump seized. Yet another call to Mr H.
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Darmic1
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Quote Darmic1 Replybullet Posted: 27 Nov 2010 at 12:36pm

Timing issues resolved, about 5 degrees out... New oil pump fitted, pipes refitted, fueled........ We have lift off! Shes alive!

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Darmic1
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Quote Darmic1 Replybullet Posted: 27 Nov 2010 at 12:44pm
Now for the finishing touches, Exhaust! COS ITS LOUD! Rotor and replacement blades
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Darmic1
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Quote Darmic1 Replybullet Posted: 27 Nov 2010 at 12:48pm
Just needs the decals....
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Darmic1
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Quote Darmic1 Replybullet Posted: 27 Nov 2010 at 12:55pm

Decals applied and laquered, finished..... almost?

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Darmic1
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Quote Darmic1 Replybullet Posted: 27 Nov 2010 at 1:00pm
Just need to attend to the poor starting, Tried to start her after a very cold night, found the spark to be weak and intermittent. Diagnosed the plug and condensor to be lazy. The plug is an original champion 8 comm rebuildable plug. When warmed it works fine, but when cold, nah! The inspection of the condensor revealed a crack across the plastic insulation. Also worked better when gently warmed with the blow lamp. New ones ordered and on the way.
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ransomesmg6
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Quote ransomesmg6 Replybullet Posted: 27 Nov 2010 at 1:01pm
That is a smashing Gem you have there Darmic1, and your hard work in prep for paint and repairs has certainly paid off in the end result with the decal finishing it off lovely, well done to you!!!!

Will you be showing it, using it or...?
Remember!!
Nothing runs like a Deere!!
But..
Nothing trots like a Horse!!
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Quote pmackellow Replybullet Posted: 27 Nov 2010 at 1:03pm
I agree with Henry, thats a top job, well done !!
Collector of Tarpen, Wheelhorse, International Cub Cadet, Landmaster, Cooper Stewart, Farmfitters, Jobber, Jalo, Ro-lo, Sisis and literature
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