[ 3 / biz / cgl / ck / diy / fa / ic / jp / lit / sci / vr / vt ] [ index / top / reports ] [ become a patron ] [ status ]
2023-11: Warosu is now out of extended maintenance.

/diy/ - Do It Yourself

View post   
File: 978 KB, 1536x2048, Image-766935039.jpg [View same] [iqdb] [saucenao] [google]
1456083 No.1456083 [Reply] [Original]

Found this chainsaw at the dump, the thing won't start up and I think it's the coil.
I measured the resistance between the tree contacts: ≈ 2000, 4000, and 4 ohms.
I'm pretty sure this means I'ts bust..?

I think I have found the good replacement, but how can I be sure before buying that it's a good replacement?

>> No.1456085
File: 866 KB, 1536x2048, Image-1312038721.jpg [View same] [iqdb] [saucenao] [google]
1456085

The spark plug gets wet so I ruled out the carburator, also tried a working plug and same results..

Pic is the new piece.

Chainsaw is from 2007 and never even been sharpened.. must have just been sitting idle in a garage all along.

>> No.1456086
File: 745 KB, 2048x1536, Image-1663940933.jpg [View same] [iqdb] [saucenao] [google]
1456086

The chainsaw: shitty no brand, but still just replacing the coil could be worth it.
But it's an annoying home model so to access the part I literally have to take it apart, 15-20 screws and all..
Please give your advice!

>> No.1456087

Also could anyone give advice on where else to look for the part? I feel uncomfortable buying it off ebay..

>> No.1456090

If the two small wires go to a switch disconnect the top one and try spinning the flywheel with a good spark plug sitting on top of the head. If it works its the switch or wiring at fault.

>> No.1456097

>>1456083

someone threw it away for a reason. i wouldnt just rely on one part being bad. maybe the engine is shot. maybe the carb is shot. by the time you replace the coil and carb if they are both bad, you might as well just have invested in a new one.

>> No.1456103

>>1456087
Part numbers are your friends. Look up a parts catalog online for it find the part numbers of what you need google just the brand name and the part number and it you get taken to eBay and the parts and numbers checkout then you’re probably safe. Lots of people sell tiny engine stuff on eBay. I’ll buy carbs off eBay all day long compared to amazon.

>> No.1456124

>>1456090
I have already disconnected the switch, still no results..

>>1456097
Someone threw it away because it just stopped working and has never seen a torx screw head. Let alone take apart the whole chassis to see what can be fixed.
The chain hasn't even been sharpened and still serviceable...

>>1456103
I have tried googling the part number on the coil but no luck.
This is the replacements page, but the coil is no more. Also no part number, just internal references:
https://www.ikra-ersatzteile.de/index.php?page=produkte&cat=15&prod=593

>> No.1456142

>>1456124
Anon. I will help you find these numbers or equivilent parts that will work. Everything is in German that I’m finding so it’ll take a bit but I’m not going to give up. I’ll be out of town this weekend so I’ll do what I can from my phone. You’ve given me a project and I’ll accept.

>> No.1456147

>>1456142
Thank you very much!

I have just received a reponse from IKRA and they say the part is no longer in production.. sad.

This is another coil I found on ebay, looks exactly the same, same 11A.

https://m.ebay.fr/itm/piece-moteur-Bobine-dallumage-electronique-9288-332101-Einhell-MSB-28-11A/192444145531?hash=item2cce909f7b:g:ZfgAAOSwvc1Za2cC

EAN: 0644221402191
The written brand and model number is just the shop and internal reference I think..

Sent the link to ikra, waiting for a reply with their advice.

>> No.1456157

>>1456147
Can you post a pic of the old coil? I have found some that claim to be OEM for the 35cm and 40cm but I’ve never seen a white coil before.

>> No.1456166 [DELETED] 

>>1456157
Look in OP.

>> No.1456169

>>1456157
Look in OP.
That is the best I have now as I left the chainsaw in the shop.
Sorry!

>> No.1456183

>>1456169
Dumbass me missed that in the op I’ll get back to you with anything I find.

>> No.1456191

>>1456083
That chainsaw is a failry generic clone made in Aisa somewhere and sold under ~20 different names. If you can post a bunch of good pics the parnet company/model can be figured out then you can fairly easily track down spares.

>> No.1456200

>>1456191
Continued by looking for the original.
It is based on a McCulloch MS1838 so most any of the 32-38cc coils from them will work.
https://store.chainsawr.com/collections/mcculloch/products/mcculloch-mac-32cc-to-38cc-chainsaw-ignition-coil-mc-302138

>> No.1456202

>>1456200
45$ for a used coil! Isin't that a bit much?

>> No.1456204

>>1456191
I guess I will only be able to get other pictures on monday..
But that ikra is just the same model

>> No.1456207
File: 227 KB, 938x656, 3d9639d97716aef43432c66cbdfac6d6.jpg [View same] [iqdb] [saucenao] [google]
1456207

Here is the best picture I could find of the saw.

>> No.1456210

>>1456202

fuck that, might as well buy a new one

>> No.1456211

>>1456202
The coil is working and originals can be a bit hard to find. His parts may be dirty but are guaranteed to be functional.
Big one is the part numbers. Can look up new parts or the equivalent clones.
Current;ly digging through the manusla looking for a shop manual. But the parts list can be found https://www.manualslib.com/manual/100618/Mcculloch-Ms1635av.html

>> No.1456257

You might have a rotten front or rear crank seal. This is a common place to lose compression in two stroke split case engines. Check after ignition system

>> No.1456343

>>1456083
The tree contacts should all have low resistance between each other. I suppose it may depend on how sharp they are.

>> No.1456371
File: 108 KB, 851x241, mcculloch_coil_in_Chainsaw_Parts_and_Accessories_eBay.png [View same] [iqdb] [saucenao] [google]
1456371

>>1456202
$14 for a new coil. used chainsaw under $100

>> No.1456618

>>1456211
Thank you so much, have been looking but they all seem soo expensive!
And the one I first found looks exactly the same.. maybe I should just go with it.

>> No.1456619

>>1456371
That one looks like it won't fit.

>> No.1456622

>>1456257
I doubt it's loosing compression, it's making a real good startup noise and the spark plug is always getting well wet.

>> No.1456630

OP ARE YOU EVEN 100% SURE ITS THE COIL? DID YOU CHECK IT FOR SPARK? DID YOU PUT A SPARK PLUG IN THE CONNECTOR AND PULL THE STARTER CORD AND WATCH FOR A SPARK WHEN IT TURNS?

>> No.1456633

>>1456622
before replacing a coil, I would definitely test it.
as another anon already said, you have to unplug it to test. could be just a short in the on off switch grounding it out. the off switch shorts the coil so it wont spark. if you unplug the switch wire from the coil, and you still have no spark, then the coil is bad, if you do have spark then you have a short in the on off switch wiring. and you can live without that.

>> No.1456634

>>1456630
yes, I saw a spark but very very faint..

>> No.1456635

>>1456633
I also unplugged it.

>> No.1456636

>>1456630

FORGOT TO MENTION YOU NEED TO TOUCH THE THREADED END TO THE ENGINE AND WATCH FOR A SPARK IN THE GAP!

IF ITS GOT SPARK YOU HAVE OTHER PROBLEMS! JUST BECAUSE THE PLUG GETS WET DOESNT MEAN THE CARB IS OK. IT COULD BE FLOODING AND CAUSING THE SPARK TO GET DROWNED OUT. YOU NEED TO CHECK ALL POSSIBILITIES BEFORE YOU JUST RULE OUT ONE PART AND ASSUME ITS THE CAUSE!

fucking hell

>> No.1456639

>>1456636
What I did.. very very faint spark.

>> No.1456641

>>1456634

you dont need much spark to get a shitty 2 stroke engine to fire. it could be getting flooded. check the carb. usually 2 stroke carbs are easier to replace than fix. i think this whole project is a lost cause you wasting too much time on it when you have no idea what the exact problem is.

I suggest taking it back to the dump where it belongs

>> No.1456643

>>1456641
no

>> No.1456647 [DELETED] 

>>1456643

well fuck you then im done giving you advice. enjoy your worthless piece of shit dump chainsaw that you are too stupid to figure out how to diagnose it

>> No.1456648

>>1456634
>I saw a spark but very very faint..
if you have any spark then the coil is good
take some 120 grit sandpaper to the magneto
the metal bottom of the coil next to the flywheel, and the magnet in the flywheel.
loosen the coil screw, and adjust the gap.
replace the spark plug

>> No.1456650

https://www.youtube.com/watch?v=ry-oBVC-Tt4

>> No.1456653

it's NEVER worth trying to fix a chink saw. for the money and time you end up putting into it you could just buy a real saw like Echo

>> No.1456657

>>1456653
I think it's worth it if I can have a working saw for the price of a component.

>>1456647
I just don't want to thow it away just like that. you don't have to get so pissed.

>>1456648
Thanks, will try that tomorrow in the shop!

>> No.1456658
File: 56 KB, 412x600, 186.jpg [View same] [iqdb] [saucenao] [google]
1456658

>>1456653
>it's NEVER worth trying to fix a

GTFO buyfag

>> No.1456660

>>1456657
it's really not. i don't think you understand just how shitty chink saws are. you'll spend more time fucking around trying to get the fucking thing to start then actually cutting

>> No.1456681
File: 18 KB, 651x312, echo_chainsaw_made_in_china_-_Google.png [View same] [iqdb] [saucenao] [google]
1456681

>>1456660
Echo is not made in USA it's made in the people's republic of China
There's a difference between being pro-American, and being an ignorant racist, you are the latter.

OP isn't shopping for a saw he already has one.

>> No.1456809

>>1456660
Not OP but that pretty much describes my experience with every 2smoke engine I've ever used, regardless of brand, origin, and application. Except one Stihl chainsaw, that thing split it's time evenly between starting with single digit pulls and being a total assbandit.

>> No.1456860

>>1456681
What are you arguing? That chink shit is indeed chink shit and not made in the US like the op claimed?

>> No.1457168

>>1456681
Echo is jap you stupid fuck

>>1456809
Stihl is generally shit to start but once started they actually stay running. probably because they've started making a lot of their shit in china. Echo and Husky are pretty decent to start, never had an issue with them

>> No.1457191
File: 1.55 MB, 2000x1041, H110-0243.png [View same] [iqdb] [saucenao] [google]
1457191

all hail the master race

>> No.1457201
File: 11 KB, 400x400, 410718-alk.jpg [View same] [iqdb] [saucenao] [google]
1457201

Ok got a reply from IKRA and of course they can't confirm the ebay coils, but they told me the originals are produced by ALKO: 410718-ALK!
They have no clue of the specs and I found nothing online..
On ebay they run for 40euro, a bit expensive for a chink saw.

>> No.1457206

>>1457191
>not Stihl

>> No.1457214
File: 1.76 MB, 2938x2204, IMG_0776.jpg [View same] [iqdb] [saucenao] [google]
1457214

>>1457206
Stihl is shit unless you buy a pro model. too much plastic and chink parts

>> No.1458048
File: 13 KB, 900x900, Deal-With-It.jpg [View same] [iqdb] [saucenao] [google]
1458048

>>1457214
>MFW using my Stihl made in W. Germany