Honda GX100 question

[ShopHelp]

I am curious about separating the crank case cover and replacing the liquid gasket to fix an oil leak. Can I simply pull the bolts, lift the cover, apply new gasket maker and then set the cover back down? Will I need to replace the oil seal when doing this if it isnt leaking? Are there any precautions I need to take? I have never tore into a small engine before and the equipment currently works without issue. Minus the oil leak.

 

[hacskaroly]

Welcome to the forum!! I have not had any experience with a Honda engine, but I did rebuild a Briggs engine for my tiller and I didn't replace the oil seal on it. I took it all apart, cleaned it up really good, put it back together carefully and it fired up and ran. I would think if you are careful then you should not have to replace the oil seal, but then there are others who say, you are that far into the project, better to be safe than sorry.

If I had had one on hand then I probably would have replaced it, but since I wasn't sure if the engine was going to run or not (I found it at the dump, it had not run up to that point) I just took a chance and put it back together after giving it a good clean.

 

[Junk Meister]

I am curious about separating the crank case cover and replacing the liquid gasket to fix an oil leak. Can I simply pull the bolts, lift the cover, apply new gasket maker and then set the cover back down? Will I need to replace the oil seal when doing this if it isnt leaking? Are there any precautions I need to take? I have never tore into a small engine before and the equipment currently works without issue. Minus the oil leak.

This is a GX (Horizontal shaft) mine was a "GC" My answer would be Yes on the GC but mine was for a governor repair and had no leak before or after.

 

[ShopHelp]

Sounds like I am going to tear it and give it a go. I appreciate the insight.

 

[EFSM]

This is a GX (Horizontal shaft) mine was a "GC" My answer would be Yes on the GC but mine was for a governor repair and had no leak before or after.

Most of the GX engines have a typical flat sump/oil pan. However, the GX100 have a similar block to the GC190, which is a tapered split. The tapered sump uses sealant, the flat use a gasket. The GX indicates the engine series; it would be GXV if it were a vertical shaft. Same with GCV—that is a pushmower engine.

 

[Wonkydonkey]

I split a gx160 on a generator (Chinese clone ) because of a governor problem ( previous owner), however i split it and sorted the governor problem. And put it back together and it’s still in use. I’ve had carb problems since however I spilt it over 5yrs ago

 

[066 redeye]

make sure the shaft is clean before pulling the seal over it.
no rust etc.

 

[RCBS]

If oil seal is still supple it'll be fine. Don't get any crud in there. Can use Hondabond or equivilent to reseal the case.