070 manual

[Robert Raven]

Hi guys,

 

So, my 070 showed up. I have posted pics of the serial number (MEgatron), the muffler which is missing the louvred steel cover plate, and also the air filter which to me looks a bit threadbare.

 

Does anyone have the part number for the missing plate?

 

I will order a new air filter I think because I can see a lot of daylight through this one. Because I'm not keen on the filter, I haven't run it a lot- just enough to check it fires up ok and blimey, it certainly does! Feels pretty ridiculously powerful, can't wait to get milling with it. I will order the 36" hard nose and filter and have a go.

 

One thing I noticed- the manual oil pump works perfectly. However when running it up, I watched the oil hole and only saw a tiny weep coming out . If the auto oiler is not working properly, where is the best place to start looking? Is there a feed hose that may have cracked or blocked or something? How fast would you expect to see oil emerging from the hole when running it barless? Like I said, I didn't like the look of the filter so I didn't run it long at all, maybe it will take a while to prime the system.

 

Thanks all,

 

Rob

[Robert Raven]

Oh and RXE, it is a hard handle one. Guess I'll get the AV gloves out.......

 

How do you check for air leaks?

[Megatron]

Unfortunately my database doesn't go back quite that far to be able to pinpoint the year. It is an early version, judging by the colours (red shroud, cream crankcase and white handle) I would say it is most likely in the 1968-1972 era.

 

The missing muffler deflector is part number 1106 145 2900. You will also need two of the locking plates 1106 148 3900 (need to order twice) and four hexagon head screws M4x10 part number 9008 319 0659 (need to order four times).

 

I would definately replace the filter with the modern flleece one (1106 120 1602). You don't want the wire mesh one.

 

With regards to the oil pump. If the manual pump works well then it is unlikely there is a problem with the pickup as they both use the same one. FYI, the automatic oil pump is adjustable though. Exactly how much oil is coming out when compared to any other saws you have?

 

To check for leaks you need to clamp a piece of rubber between the muffler and cylinder (to seal the exhaust) and another piece of rubber between the carb and inlet manifold (to seal the intake). For this series of saw it is easiest to apply vaccum/pressure through the spark plug hole using an old spark plug base as an adaptor. Arbtalk member Spudulike has several pictures of the process on different saws in the What's on your bench today thread.

 

I have found when these saws leak air it tends to be the decomp button or oil pump impulse hose at fault a lot of the time rather than the oil seals. Due to the age of the saw I would recommend a new set of oil seals regardless of whether they leak or not.

 

Edit;

Looks like the lower felling spike fixing is busted off? Shouldn't be a problem when milling though as you don't use them.

Edited November 13, 2011 by Megatron

[Robert Raven]

Thanks Megatron, its great to be in touch with someone who knows these saws inside out. I'll get the parts on order.

 

I have both felling spikes, they were removed for shipping, like you said for milling, they're just in the way.

 

A for the oil, it seems ok now. Don't think I ran it for long enough to get it through, tried again and I get a decent trickle once it's up to speed.

 

I'll order those oil seals and save them for a quiet day in the winter. I downloaded the workshop manual, it looks reasonably straightforward.

 

Should get the bar this week and then I can put it to some good use, will let you know how it goes!

[Robert Raven]

Oh and thanks for the info on the age- I'm pleased to have a vintage saw! Saw a pic if your big old saws on another thread, very nice collection in tip-top order there.