McCulloch 640 gear drive oil weight

[stihl_collector]

I'm about to use the big gear drive 640 mac and need to oil up the gear case, what weight oil is recommended?

Thanks.

 

[gmax]

Sae 90

 

[stihl_collector]

Thankyou gmax i thought it would be around 80 or 90 weight but best to check.

 

[Guido Salvage]

Pictures?????

Here is my 640 when I bought it.

 

[stihl_collector]

Here is the big 640 Guido Salvage, very hard to come across over here is Aus this one just feel into my hands and cheap also.

<a href="http://s917.photobucket.com/albums/ad20/neilpatrol/?action=view&amp;current=mac640003.jpg" target="_blank"><img src="http://i917.photobucket.com/albums/ad20/neilpatrol/mac640003.jpg" border="0" alt="Photobucket"></a>
<a href="http://s917.photobucket.com/albums/ad20/neilpatrol/?action=view&amp;current=mac640002.jpg" target="_blank"><img src="http://i917.photobucket.com/albums/ad20/neilpatrol/mac640002.jpg" border="0" alt="Photobucket"></a>
<a href="http://s917.photobucket.com/albums/ad20/neilpatrol/?action=view&amp;current=mac640001.jpg" target="_blank"><img src="http://i917.photobucket.com/albums/ad20/neilpatrol/mac640001.jpg" border="0" alt="Photobucket"></a>

 

[GASoline71]

I have a 640 as well... I also converted it over to a Tillotson HL carb, and got rid of the McCulloch Flatback.

Gary

 

[stihl_collector]

Gary are your running a .404 chain or is that 1/2'?

 

[ray benson]

I'm about to use the big gear drive 640 mac and need to oil up the gear case, what weight oil is recommended?

Thanks.

Fill gearcase to level of filler plug with "type A automatic transmission fluid. Do not overfill.

 

[CM76]

Here is the big 640 Guido Salvage, very hard to come across over here is Aus this one just feel into my hands and cheap also.

Nice 640 SC. Although you do not see many of these saws come up, they are indeed around over here in Australia. I have a couple of 640's which I picked up a while ago - here is one which came in with a really nice 1-86 gear drive, CP125, and SP105.

Enjoy that Mac geardrive - they are good old saws to play around with.

Regards,

Chris.

 

[gmax]

Fill gearcase to level of filler plug with "type A automatic transmission fluid. Do not overfill.

That's interesting, this is from the the workshop manual

 

[struggle]

No way no how is tranny fluid to be used in a gear case like this. It would be like pouring in water well not that bad but you get the idea:msp_cursing:

 

[GASoline71]

Gary are your running a .404 chain or is that 1/2'?

.404" chain.

Gary

 

[stihl_collector]

Nice 640 SC. Although you do not see many of these saws come up, they are indeed around over here in Australia. I have a couple of 640's which I picked up a while ago - here is one which came in with a really nice 1-86 gear drive, CP125, and SP105.

Enjoy that Mac geardrive - they are good old saws to play around with.

Regards,

Chris.


Chris that is a nice looking line up you have there. I have seen very little in Aus but i know they were popular years ago in NTH QLD where i was from but most went to the junk heap i was told.

 

[ray benson]

That's interesting, this is from the the workshop manual

Boy that is odd, Got the trans fluid info from the 4th edition of Intertec chainsaw service manual. The gear oil makes more sense.

 

[Teddy.Scout]

You freakin newbees are all wrong!

Just use the what your suppose to!!!!!!!!!!!!!

(got to be honest, got this from a fellow AS member! Was a freakin sweat gift!)

 

[wigglesworth]

You freakin newbees are all wrong!

Just use the what your suppose to!!!!!!!!!!!!!

(got to be honest, got this from a fellow AS member! Was a freakin sweat gift!)

Now, that's what Im talking about...

 

[stihl_collector]

Matt i hope that McCulloch has had a clean since this photo.

 

[Teddy.Scout]

Now, that's what Im talking about...

Ya, it is nice to get cool stuff like this!!!!!!!!!!!!
Never thought I would be one for flair, but to get gear oil! That is some cool flair!

Matt i hope that McCulloch has had a clean since this photo.

Heck no Neal!
This is a work saw!
But then it is 2 Advils and shakey hands the rest of the night.

 

[stihl_collector]

Ok bringing this one back from the archives, I pulled the 640 out of the shed and gave it a run and it ran like s..t. It is in need of a carb kit but i want to put a tillotson carb and get rid of the old flat back, can anyone give me a tillotson carb number i should use. Thanks.

 

[heimannm]

I kept the McCulloch flat back in mine, runs well too...

Most of the HL will work, 63 are pretty easy to find as they were used in the 250 saws, I think the 113 would fit just as well.

Mark