OutdoorKing Repair Forum Forums Repairs and Maintenance Questions on Chainsaws and Concrete Cutters McCulloch Chainsaws McCulloch Chainsaw Parts For Sale McCulloch Wildcat Chainsaw

Hello, Can anyone tell me if the (McCulloch Wildcat) chainsaw has just a manual oil pump on this model? I can't find a parts list for this old saw to see a exploded parts diagram.

I don't see a automatic oiler that McCulloch also used along with a manual pump. I believe they were introduced in 1989.

Thanks for any help with this!

Hi FoMoCo1 and welcome to Outdoorking. I can suggest three approaches you might try.

1. Check this internet page:
http://www.arboristsite.com/chainsaw/183549.htm
The person who posted the answer seems sure it has an automatic oiler, and tells you where to find it on the saw.

2. Check out this Outdoorking thread:
https://www.outdoorking-forum.com.au/forum/ubbthreads.php?ubb=showflat&Number=4368
It appears that Bruce, the Outdoorking site-owner, has the parts list, or had it half a dozen years ago. You might try sending him a Private Message (see MyStuff at the top of this page).

3. Try this internet selling site:
http://www.ioffer.com/i/wildcat-38cc-mcculloch-chain-saw-parts-list-1989-144711631
It appears that guy is prepared to photocopy the parts list and supply it - I don't know him so I can't recommend him, I just found him with a Google search

Thank you for your links & help, I do appreciate!

I'm a member on ArboristSite and of course that's my post. I read the guys reply and respect what hes saying but I have this saw completely disassembled and there is no oil pump forward of the carburetor.

I believe the saw is strictly a manual oil pump unit on this model. I think?

Again, thanks for your effort & help.

Thanks for updating us FoMoCo1. I know there is at least one other McCulloch chainsaw that has the automatic oiler where he said and adjusted in that way, but it was a 110, not a Wildcat. It sounds as if the person posting just assumed all McCullochs were the same. If you've dismantled the machine and haven't found either an automatic oiler or the place where one would go, there can't be an automatic oiler. They tend to have a little piston pump which is combined with the manual oil pump, and it is operated by crankcase pressure pulsations, so there is no mechanism to drive it.

I noticed in the list of contents the guy selling the photocopied parts list has supplied, there is an item for the chain oiler, but it could easily be the manual pump, not an automatic one.

Because the Wildcat is a small saw I guess it could be reasonably workable without an automatic oiler, but at 38 cc it is not all that small really. I won't say it is impossible, but I'd be a bit surprised. On the other hand, it isn't rare for me to be surprised. McCulloch did make the worst chainsaw I've ever seen (a baby electric one with a built in "sharpener" that simply pressed a grinding stone against the top of the chain while it was running).

Here is a link for the 1989 McCulloch Wildcat exploded view assembly.

http://www.searspartsdirect.com/par...rts/Model-WILDCAT1160016003/0684/1503200

Thanks for that FoMoCo1. As far as I can make out, that is the most elaborate automatic chainsaw oiler I've ever seen. The piston (Item 10 of Figure 2) appears to be operated by crankcase pulsations. Overall, the manual and automatic pumps are combined into a single body, but operate by using separate moving parts. Items 2-9 are the manual pump, while items 10-16 are the automatic pump. I haven't found a way to adjust the amount of oil delivered by the pump, though.

Are you telling me that at the base of the manual pump where it is seated on the crankcase, that this section of the pump is automatic?

That is what the diagram seems to show. On the base of the large cylindrical part of the pump, inside the crankcase, should be a fair-sized piston which is exposed to crankcase pressure fluctuations. Crankcase induction two strokes, like just about all chainsaws, have quite heavy crankcase compression once every revolution of the engine, changing to slight suction in the opposite half of the revolution. Those pulsations act powerfully on the piston in the base of the pump, causing it to reciprocate.

Your right!, there is a open port going to the inside of the crankcase where the base of the pump seats.

My mind has been so focused on researching this with a my computer I've moved away from actually studying the engine itself. It is in fact a combination pump design. I thank you for pointing this out to me, the mystery has been solved and the McCulloch Wildcat specification sheet is simply wrong on the oiler type spec..

Thanks Grumpy!

You're welcome FoMoCo1, it was a pleasure to have the opportunity. Ty or Deejay, would you mind closing this thread please? Chainsaws don't seem to be one of my forums.