Abby's Guide to Outdoor Power Equipment (Lawn Mowers, Snow Blowers, Chain Saws and more)
Username Password
Discussions Reviews More Guides
Abby’s Guide > Outdoor Power Equipment (Lawn Mowers, Snow Blowers, Chain Saws and more) > Discussions > Question on Honda GX340 engine

Outdoor Power Equipment (Lawn Mowers, Snow Blowers, Chain Saws and more) Discussions

Search For:
tkrotchko


Location: Maryland
Joined: Feb 9, 2010
Points: 143

Question on Honda GX340 engine
Original Message   Apr 11, 2014 8:42 pm
I was changing oil on a GX340 engine on my snowblower. The manual says it holds 1.1 quarts of oil (which I read as about 35 ounces) Yet, the manual also shows that you fill up the crankcase until it's touching the threads for the dipstick. This is pretty common in the GX line (same in the GX160). However, if you add 1.1 quarters, the oil comes halfway up the dipstick, nowhere close to the threads. If you fill it until it reaches the threads, it's closer to 1.4 quarts, or 45 ounces. I am frankly baffled by how much oil this engine needs. Thoughts? Also, this winter is the first the engine has really worked for more than an hour, and when I changed the oil, I could see flecks of metal (microscopic) glinting in the sun. I am inclined to add a magnetic drain plug to the machine, and was wondering if anyone had any opinions on doing this.
Replies: 1 - 4 of 4View as Outline
MN_Runner


Location: St. Paul, Minnesota
Joined: Dec 5, 2010
Points: 618

Re: Question on Honda GX340 engine
Reply #1   Apr 11, 2014 9:00 pm
My GX270 (Honda HS 928WAS) takes about 1.2 Qts of Mobil 1 5W-30. I change the oil and spark plug every other year. I would just fill the oil until it looks full on the stick
tkrotchko


Location: Maryland
Joined: Feb 9, 2010
Points: 143

Re: Question on Honda GX340 engine
Reply #2   Apr 11, 2014 9:35 pm
MN_Runner wrote:
My GX270 (Honda HS 928WAS) takes about 1.2 Qts of Mobil 1 5W-30. I change the oil and spark plug every other year. I would just fill the oil until it looks full on the stick


Yeah, the design of the engine looks to me like it's impossible to overfill unless you put the whole snowblower on a hill. I put in 10-30, and a magnetic dipstick, I'll run it a few minutes each week to cycle the oil through the summer, catch any remaining metal, and I have Mobil 1 5-30HM (high mileage) oil that I'll put in before winter. People have told me the high mileage synthetic is more appropriate for this engine in a snowblower. I don't see a downside to it.
This message was modified Apr 11, 2014 by tkrotchko
trouts2




Location: Marlboro MA
Joined: Dec 8, 2007
Points: 1289

Re: Question on Honda GX340 engine
Reply #3   Apr 12, 2014 11:24 am
   Many spec's have slight differences like that.   I have a few GX's and # of exact GX200 clones and go to the threads.  It's  not a big deal either way but when an option I go for whichever is more.  There is still plenty of oil to splash around when the oil level is at the end of those short level sticks.
   The silver sparkeling is not a big deal and expected.  For a new engine or rebuild I change oil at 5 minutes, 10 minutes and 20 minutes.   I used to do a bunch so would recycle the oil after tanking for a week or run the oil through a filer before reuse.  I know about magnetic plugs but never heard of a magnetic dip stick which seems useful.
 
RedOctobyr


Location: Lowell area, MA
Joined: Nov 5, 2011
Points: 273

Re: Question on Honda GX340 engine
Reply #4   Apr 12, 2014 7:58 pm
Mobil 1 High Mileage has more zinc (ZDDP), which is supposed to be better for typical small engines, from what I've read. This is because of the way the valves/pushrods ride on the cams; there are no roller-bearings riding on the cams, the way car engines do it.

I'm transitioning from regular Mobil 1 to Mobil 1 High Mileage in my small engines.

Amsoil also makes an oil specifically for small engines, which I believe has even more ZDDP. The ZDDP is apparently bad for catalytic converters, so they've been reducing the amount in car oils. But that concern doesn't apply to small-engine-specific oils.

Mobil's chart about the ZDDP levels in their Mobil 1 oils:

http://www.mobiloil.com/USA-English/MotorOil/Files/Mobil_1_Product_Guide.pdf

Admittedly, this likely counts as over-thinking it. I doubt I'll actually wear out any of my engines, based on how I use them. But it's kinda cheap insurance/peace of mind.
Replies: 1 - 4 of 4View as Outline
Outdoor Power Equipment (Lawn Mowers, Snow Blowers, Chain Saws and more) Guide   •   Discussions  Reviews  
AbbysGuide.com   About Us   Terms of Use   Privacy Policy   Contact Us
Copyright 1998-2014 AbbysGuide.com. All rights reserved.
Site by Take 42