S1g

One thing that's really been bugging me is the

pitting in the cover over the top of the cylinder

head, so today when I was applying stopper to

the under belly of my Sachs Gem I also gave

this a quick skim.

Also fitted the new badges to this one aswell.

When I had a proper look at the bonnet I decided

that it would need flatting back as there was some

contamination im guessing in the primmer.

Today I also managed to get the under belly

sanded and primed. Just going to need a small

skim of stopper and then it should be ready for top

coat.  

A while back  I purchased a load of N.O.S badges

for Gem's, every one up till now had been fine,

however when I peeled back the cellophane layer

on the clutch one it peeled some of the paint off, I

don't know why, but as luck would have it I had

another new one that was good.

Try googling simply bearings. The do pulleys quite cheap in all sorts of sizes.

Managed to get another hour or so on this project today.

The air filter was refitted, followed by the exhaust and the

injector.

Next the radiator and fan was properly plumbed in and I

loosely refitted the fuel lines. The fuel lines could really do

with replacing, can anyone recommend a good source

please?

The final job today saw the under belly tray get a skim of

filler as after blasting it came up just way too rough to

paint.

The final decal for the engine arrived off Titch, here it is in place.

1 hour ago, Wristpin said:

Pity about the box, people will leave them out side to fill with water. I've reskinned a few with "tin" from 25ltre oil drums, the trick is finding a drum that's nor pre-dented. The 17" Super punch was a good machine and a perfectly useable Classic now: as is the 14" MkVII Punch .Here's a few of mine , the one on the right is the quite uncommon ten bladed "Professional" .

 

Awesome looking machines of yours. Would I be right in thinking about the date of 1960's?

Just picked this up on my travels. Can anyone tell me much about it?

I'm guessing its 1960's? Overall it looks quite good, just the bottom of the box has rotted out.

Just done the same with my mobile phone, result another £120 saved with more minutes included as well.

Heres a few photos of todays progress. New tyres fitted

( don't know where they came from but found them in my

shed). New exhaust fitted (again was on the shelf in my

shed).  And the pipe was painted in some VHT silver.

The final photo shows how bad the recoil starter and the

flywheel screen was. The screen had to come from America

but the recoil...yep you've guessed it!

Heres the main chasis with the top coat on. And in the 3rd

photo the engine is back together. Just the exhaust needs

changing and waiting on one more decal.

17 minutes ago, pmackellow said:

Great addition to your collection Gareth, and a great comparison between this and G206

 

Thanks Paul, that's the plan.

One of the things that I got on with first was the engine. It was stripped

down, valves reground etc(no points on this one). Then the paint was

stripped, the air filter housing and tank repaired (new ones were redicoulas

prices) then everything was painted in the nearest shade of red that I had.

Then some excellent decals from Titch were applied.

After a few months of waiting I finally received a call from the

blaster to say that it was ready. He doesn't charge a lot, just

wish he was more reliable.

One of the reasons that work on my Sachs Gem has been slow recently

is that I have dug this 650 out. As a lot of you may know in 1985 Howard

went into receivership and Dowdeswell purchased the design rights to

The Gem.

In 1986 production started back up with a few small changes. As ive got

G206 ( I still haven't yet managed to turn up a Gem with a lower serial

number) I thought that they would look good side by side to show how little

the design changed over 50 odd years.

I spotted this example on good old ebay. It looked in quite a sorry state but

after having the factory records checked it showed up that this very machine

was Dowdeswells exhibition model on their stand at The Windsor show in

1987-Does anyone have any photos from this year please? It is also quite

likely but I don't have definite proof that it was also featured in the one sales

Brochure and Dowdeswell's magazine called Tillage.

I just noticed that BT had sneaked my bill up to £46.00, so I gave them a call and asked them what's the best price they could do, to begin with they said £40.00 was the very best, so I told them to cancel it, the next thing you know they dropped to £26.00, result. That's a saving of £240 a year! Next I guess I'll have a go at the electric company!

1 hour ago, Wristpin said:

There is a very good manual "Small Engine Secrets and Solutions) written by John Carrow a BS MST and Technical Manager in Australia for many years. Unfortunately now out of print but worth searching for. 

This is a quote from the book and one of my favourites.  (boringly so !)

 

"Technicians who are valve critical will always have a better record of repair success than those who take a near enough approach"

 

A lot of time can be wasted fiddling around with carburettion and and ignition to no effect unless the valves are right.

 

 

Probably one of the truest statements that I've ever read. Years ago I gained a bit of a reputation locally as a Gx Honda guru, ( before all the Chinese stuff got about)people used to ask me what my secret was in sorting out so many problem engines and I said there was none, simply pop the head off,de coke, grind the valves in, new plug and air filter plus fresh fuel and then 99% of them would be sorted. It was rare that I had to delve deeper,usually took less than two hours from start to finish.

As a rule I allways do both valves when servicing any engine, however I guess I have got so used to people telling me that I'm wrong that valves cause fuel issues that I've developed the habit of only recommending the exhaust. Always do both reguardless of how good compression seems.

Through my website I've been offered a two stroke Villiers bantam for free( well almost he says he'd like a beer for it). It's in Devon but being realistic I haven't got the room for it. If anybody would like it pm me and I'll give you the chaps details. I don't know anything about it other than its been stood in his parents garage for a long time.

Carrying on with the build up...

Personally I'd reg rind the exhaust valve and replace the diaphragm.

Have now started fitting up the Gem. First on was the wheels

followed by the radiator. On the nearside wheel I had to fit an

extra wheel disc to act as a spacer due to the tyre rubbing on

the bellhousing (such a shame the original Dunlop tyres are

no longer available.) This in turn will mean the springs need

shortening. I have also trail fitted the bonnet. Now it has dried

Im hoping that I may get away with sanding it smooth with

2500 wet and dry.

24 minutes ago, pmackellow said:

Looking good mate

Thanks, still a long way to go though.

Im afraid none of you were quite right. This evening I took advantage

of the lack of rain and sprayed it up. On the whole it came out ok,

however I think im going to have to flatten back the bonnet and redo it,

as I not 100% happy with the finish.

Thankyou for your wishes.

Having re engine a few hayterettes, id suspect either something was rubbing or have you got a bit of hydraulic lock in the cylinder?

A couple of nights ago I gave the main chasis a going over with the wire brush.

Tonight the engine got masked up and a couple of coats of etch primmer,

followed by a couple more of high build primmer. Just got to wait for a dry

evening now to prime the rest and apply topcoat. Bet you cant guess the colour!