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Different weight oil to help bad rings? #4759386
05/17/18 12:40 AM
05/17/18 12:40 AM
Joined: Mar 2016
Posts: 83
iowa
sh40674 Offline OP
sh40674  Offline OP
Joined: Mar 2016
Posts: 83
iowa
i've used 5/30 synthetic in almost all of my small engines (unless calling specifically for something else) and never an issue. i usually buy a 5 quart jug of a synthetic 5/30 and that's my small engine oil. Well, i was going to get a new lawnmower this year (push mower) but new windows in the house and a new snowblower this last winter i'm hoping for 1 more year out of my old trusty grass chopper. the last 2 seasons it occasionally blows some blue smoke at start up (not all the time). had it looked at back then and the guy told me the rings were just getting worn, and if i was planning on replacing it anyways no big deal, when shes done just let her go (didn't pay much for it, it's a poulan with a briggs engine). i've mowed twice now, a week ago and today. today i noticed after it warmed up just a slight amount of blue smoke while running... which is kinda new. is there a different type or weight of oil that can help out a little bit? i know it wont fix the problem, just need this mower to last 1 more season if possible

Re: Different weight oil to help bad rings? [Re: sh40674] #4759387
05/17/18 12:48 AM
05/17/18 12:48 AM
Joined: Sep 2010
Posts: 7,485
S California
OneEyeJack Offline
OneEyeJack  Offline
Joined: Sep 2010
Posts: 7,485
S California
It only takes a small amount of oil. Try some 20w-50. You haven't got much to lose.

And you can try removing the spark plug, pour some penetrating oil in the cylinder, turn the engine over and let it sit overnight. Flush it out carefully and then try the 20w-50.

Re: Different weight oil to help bad rings? [Re: sh40674] #4759404
05/17/18 02:57 AM
05/17/18 02:57 AM
Joined: Dec 2013
Posts: 3,989
Manchester, England
Olas Offline
Olas  Offline
Joined: Dec 2013
Posts: 3,989
Manchester, England
Worn rings are worn, only replacing them will help to have less worn rings.

Thicker fluid may leak through the gap more slowly and 'band aid' the symptom but this is not helping the rings.

Piston soak may unstick them (if they're stuck) which could improve compression and reduce consumption, but you'll need to diagnose the issue first.


Cable ties should hold it
Re: Different weight oil to help bad rings? [Re: sh40674] #4759418
05/17/18 04:19 AM
05/17/18 04:19 AM
Joined: Sep 2013
Posts: 10,692
Indiana
dlundblad Offline
dlundblad  Offline
Joined: Sep 2013
Posts: 10,692
Indiana
Youíre wanting it to last 1 more season so just keep it topped off with what youve been using and mow.

If you want to tinker, try some cheap 20w50.


03 Jeep WJ 4.0 202k Castrol Edge 10w40 HM Fram XG16
02 Volvo S60 2.4T 186k M1 0w40 Mahle OX149D
97 Chevy Blazer 4.3 153k Synpower 5w30 Supertech ST3980 (Ecore)

Re: Different weight oil to help bad rings? [Re: sh40674] #4759419
05/17/18 04:23 AM
05/17/18 04:23 AM
Joined: Mar 2016
Posts: 83
iowa
sh40674 Offline OP
sh40674  Offline OP
Joined: Mar 2016
Posts: 83
iowa
i understand that they're worn and wont fix the issue... just thinking of ways for reducing the smoke a bit... get's a little annoying and slightly embarrassing with the neighbors watching laugh

Re: Different weight oil to help bad rings? [Re: sh40674] #4759429
05/17/18 04:42 AM
05/17/18 04:42 AM
Joined: Dec 2017
Posts: 3,044
SE British Columbia, Canada
Snagglefoot Offline
Snagglefoot  Offline
Joined: Dec 2017
Posts: 3,044
SE British Columbia, Canada
Just out of curiosity can you look at the name plate and tell us what year it was manufactured?


If you want the job done right......do it yourself.
Re: Different weight oil to help bad rings? [Re: sh40674] #4759431
05/17/18 04:49 AM
05/17/18 04:49 AM
Joined: Oct 2009
Posts: 3,530
Wet side WA
JohnnyJohnson Online content
JohnnyJohnson  Online Content
Joined: Oct 2009
Posts: 3,530
Wet side WA
It's a Poulan how old?


2004 Corolla 126884
Out: VML 5w-30 TG4967 OCI 5007 Miles
In: EDGE EP 5W-30 Bosch 3311 122537 7-18-18
2006 Duramax 74478
Out: T6 5W-40 M1-303
In: T6 5W-40 XG9100 73705 4-22-18
Re: Different weight oil to help bad rings? [Re: sh40674] #4759470
05/17/18 05:48 AM
05/17/18 05:48 AM
Joined: Oct 2012
Posts: 4,825
Taiwan
Ducked Offline
Ducked  Offline
Joined: Oct 2012
Posts: 4,825
Taiwan
Originally Posted By: sh40674
i understand that they're worn and wont fix the issue... just thinking of ways for reducing the smoke a bit... get's a little annoying and slightly embarrassing with the neighbors watching laugh


Farmers here sometimes stick a knitted work glove on the end of their ancient 2-smoke Kawasaki B2 motorcycle exhausts, though I'm pretty sure they aren't embarrassed by the neighbours watching.

If they were they'd probably take it off, so the neighbours wouldn't be able to see them.

Mow at night?

Last edited by Ducked; 05/17/18 05:49 AM.
Re: Different weight oil to help bad rings? [Re: sh40674] #4759474
05/17/18 05:54 AM
05/17/18 05:54 AM
Joined: Jan 2012
Posts: 4,813
Florida
hatt Offline
hatt  Offline
Joined: Jan 2012
Posts: 4,813
Florida
Originally Posted By: sh40674
i understand that they're worn and wont fix the issue... just thinking of ways for reducing the smoke a bit... get's a little annoying and slightly embarrassing with the neighbors watching laugh
SAE 30, SAE 40, 15W-40, or 20w-50 will probably help. I wouldn't ever use typical thin 30s like you're using in OPE.


2013 F150 5.0, PUP 10W-30, Wix 57502
2010 Camry 2.5, GTX 5W-20, Fram Ultra XG9972
Re: Different weight oil to help bad rings? [Re: sh40674] #4759477
05/17/18 05:58 AM
05/17/18 05:58 AM
Joined: Apr 2018
Posts: 619
Canada
nap Offline
nap  Offline
Joined: Apr 2018
Posts: 619
Canada
Originally Posted By: sh40674
i understand that they're worn and wont fix the issue... just thinking of ways for reducing the smoke a bit... get's a little annoying and slightly embarrassing with the neighbors watching laugh


You must be young. At my age I donít care anymore what others might or might not think of me. laugh

Re: Different weight oil to help bad rings? [Re: Ducked] #4759480
05/17/18 06:03 AM
05/17/18 06:03 AM
Joined: Aug 2010
Posts: 5,951
Champlain/Hudson Valley
Kira Offline
Kira  Offline
Joined: Aug 2010
Posts: 5,951
Champlain/Hudson Valley
Has anyone here ever done a compression check on a new mower just to establish a base line?

Do a dry compression check then add a squirt of oil.

Is reringing a single cylinder engine a big deal? ....after all, it is a Briggs engine!


Re: Different weight oil to help bad rings? [Re: sh40674] #4759488
05/17/18 06:08 AM
05/17/18 06:08 AM
Joined: Aug 2003
Posts: 741
ottawa
nicholas Online content
nicholas  Online Content
Joined: Aug 2003
Posts: 741
ottawa
The rings could also be gummed up - not necessarily worn.
If your oil control rings are clogged some can be cleaned.

I have had amazing success with BG EPR on an oil drinking audi.

Stuff works VERY well.

Re: Different weight oil to help bad rings? [Re: nap] #4759491
05/17/18 06:13 AM
05/17/18 06:13 AM
Joined: Feb 2010
Posts: 58
SW Oklahoma
Dwane17 Offline
Dwane17  Offline
Joined: Feb 2010
Posts: 58
SW Oklahoma
Originally Posted By: nap
Originally Posted By: sh40674
i understand that they're worn and wont fix the issue... just thinking of ways for reducing the smoke a bit... get's a little annoying and slightly embarrassing with the neighbors watching laugh


You must be young. At my age I donít care anymore what others might or might not think of me. laugh


+1

Re: Different weight oil to help bad rings? [Re: sh40674] #4759499
05/17/18 06:24 AM
05/17/18 06:24 AM
Joined: May 2005
Posts: 10,570
ROCHESTER, NY
Char Baby Offline
Char Baby  Offline
Joined: May 2005
Posts: 10,570
ROCHESTER, NY
I've never been able to slow down the burning in an OPE by using a thicker oil or even that STP or Motor Honey. It all just thins out with the )))HOT((( engine.


"Retired"
-----------------------------------

'80 Firebird FORMULA V8/4bbl-purchased "NEW"
'15 Nissan Altima 2.5 SV
'15 Honda Civic LX
Re: Different weight oil to help bad rings? [Re: sh40674] #4759507
05/17/18 06:30 AM
05/17/18 06:30 AM
Joined: Jun 2011
Posts: 1,132
Texas
wag123 Online content
wag123  Online Content
Joined: Jun 2011
Posts: 1,132
Texas
Most Poulan branded mowers use B&S engines that have aluminum cylinder bores. Rings are not the problem, a worn cylinder bore is the likely problem. Aluminum bore B&S engines will run for years burning oil like this if you keep oil in them. Just use an HD SAE30 motor oil to minimize oil use (don't use a multi-weight motor oil), check the oil level before EACH fuel fill (add as needed but DO NOT OVERFILL), and run it till it blows. You will probably be surprised at how long the mower will run like this. If your neighbors question your smoking mower, tell them you are killing mosquitoes smile

Last edited by wag123; 05/17/18 06:47 AM.
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