Can The Stihl Ms291 Chainsaw Muffler Screw Threads Be Saved?

Рет қаралды 13,407

2 ай бұрын

STIHL MS291 Muffler Screw Threads Damaged! Can It Be Fixed?
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Пікірлер: 59

@zoranpetrovic2778 2 ай бұрын

When you have the right tools, the job is done easy and proffesional.

@80SWoods 2 ай бұрын

I have to say, a Helicoil repair is one of the most satisfying repairs there are. You take something that would normally be a huge issue and fix it better than new. I bought both the metric and SAE kits from Amazon. They aren’t Helicoil brand, but are cheap and work well.

@InTheVise 2 ай бұрын

Nice job! I usually add high strength loctite on the helicoil and grease or anti seize on the screw, to prevent the risk of it coming out if someone screws the screw out.

@jamesc9327 2 ай бұрын

It's always a great day when Dony shares a new video repair. 👍👍👍👍

@BearE9090 2 ай бұрын

You should use Tap Magic or Quick Tap when tapping aluminum. The metal is soft, and the chip sometimes binds and tears the thread. Plus, tap deeper than you need because you have to compensate for the taper of the tip. If the hole is not deep enough you can Tap it with the taper Tap and then go in again with a flat bottom Tap. Great video.

@famasmaster2000 2 ай бұрын

Awesome fix Don !! That kit is perfect too , Princess Auto, here I come 😊

@fishin11 2 ай бұрын

Put red lock tite on insert threads. Then let sit for a few hours for the lock tite to harden. Then if any of the lock tite is in the threads of the insert, use a thread chaser, not a tap, to clean out the insert threads. Retired marine tech here, outboard motors are aluminum and we have stripped threads once in a while. But if we don’t put red lock tite on, the insert has come out a couple times.

@shabadoo24 2 ай бұрын

I've ordered one of those thread checkers that you were talking about. It should be here by Monday coming. Going to see if they are good

@henerker 2 ай бұрын

Nice! I like this video. Here again, Donny shows us we can make this repair ourselves and save money!

@Mechanicturfgear 2 ай бұрын

Wow nice kit 👍great repair as always 😊you can put a little grease on tap to help stick the shavings too and stick a shop cloth inside exhaust port if you’re concerned about the shavings.

@yodasbff3395 2 ай бұрын

Excellent fix, thanks for sharing your videos. 👍

@gordsmith7708 2 ай бұрын

Great job Donny. Cheers man

@johnmaranuk1842 2 ай бұрын

Awesome repair. Thanks!

@mikefisc9989 2 ай бұрын

Great repair. Happy Easter Dony. 🐰🐣

@gregritter5883 2 ай бұрын

Nice job Donnie. Well done.

@nitro74cs 2 ай бұрын

Nicely done, good job, have a good weekend

@liljoeii6091 2 ай бұрын

AWESOME VIDEO THANK YOU

@littlepaddy7444 2 ай бұрын

Good job Don. Thanks.

@74willy81 2 ай бұрын

The nice part about thread inserts is that now the original sized bolt will actually have a larger purchase on the aluminum than the OEM bolt had originally! The stainless threads being more durable is an added bonus. Well done.

@baileymurphy2390 2 ай бұрын

I especially like the tool recommendations/reviews. I have bought some of the tools you review or use in your shop.

@tadeuszmichaelwlodarczyk3120 2 ай бұрын

Great job once again 💯✔️👍. From Melbourne AUSTRALIA 👍🤠

@RussellBooth1977 2 ай бұрын

When I rebuilt a Stihl hedge trimmer engine I just drilled them out to 6 millimetres because it came back with a sheared off muffler screw which was of the self tapping type,it was one of those long ones. I just drilled at least one of them out & fitted at least one M304 M6 threaded hex head bolt, note that I drilled the new cylinder kit bolt holes out & tapped them to 6 millimetres because the original 5 mm self tapping screws didn't fit,AFAIK that hedge trimmer is still going !

@Drottninggatan2017 2 ай бұрын

Sometimes it can be tricky to use 6 mm bolts as you also have to enlarge the holes in the muffler, and those usually have pipes inside to support the screw.

@doglegjake6788 2 ай бұрын

Excellent video

@Farmer-bh3cg 2 ай бұрын

Thank you for a video that applies to all small engine stripped threads! Suggestion for the thread drilling step: Use a drill stop to control the drilling depth. It also gives a visual reference to help keep the actual drilling square.

@kencurtis228 2 ай бұрын

TY for Sharing

@706pee 2 ай бұрын

Great job

@mrclaus859 2 ай бұрын

Thanks Dony

@johnmilner7603 2 ай бұрын

I had to do that to my 8-26 snow blower from Canadian Tire which I purchased in 1985. Same bolt threads were used on the insert but I bought new bolts due to the age and wear from heat on the originals.

@st7650 2 ай бұрын

Hey I have a question you have any videos on how do the shops sharpen chainsaw chains professionally

@leandropija2046 2 ай бұрын

Good video

@Davidjb37721 2 ай бұрын

Thanks

@steveriggenbach90 2 ай бұрын

Great repair. They work best when screws left in. Do they bring back in to be checked? Have a safe holiday.

@gillgetter3004 2 ай бұрын

I’ll have to get new kit, my old SAE kit is missing parts etc. Now a days ya need metric too👍

@Jamwcjconn 2 ай бұрын

Great Video

@2Blueberries 2 ай бұрын

Certain models of Stihl muffler bolts always vibrate loose. I put slightly larger bolts instead and added the upgrade bracket to stop it from happening again, yours has the old bracket, the new one braces it in another spot.

@user-cn3vg3hj2b 2 ай бұрын

Dany mi cortadora de pasto está muy acelerada que revisaré simedigeras porfavor gracias

@ron827 2 ай бұрын

Would threadlocker work or is there too much exhaust heat?

@christopherlabarge6364 2 ай бұрын

what was the tool you used to get the tap in the hole and were can you get one I have taps and have a hard time with the t handle to get the tap started also a long time viewer

@drbogger 2 ай бұрын

Do you have a link to this kit on Amazon?

@steadfastlawncare 2 ай бұрын

In what you’ve seen come in the shop what brand has the least amount of issues?

@Paul1958R 2 ай бұрын

Great video - thank you. 'STEEL' or 'STILL'? Several YTs that are Stihl dealers say 'STILL'. I would think they would know but ??? Many other YTs say 'STEEL'. Don says it both ways. Thank you

@Pete.Ty1 2 ай бұрын

👍👍👍. Thank you

@wallywall6830 2 ай бұрын

Dony boy I have aquestion I have ms 046 magnum I I bought a 25 inch bar but the label is green The gauge for the chaing is.050 originally came with .063 can I change it to a .050 ?

@michaelcountryman9130 2 ай бұрын

Why would a ms 291 have a clutch cover for ms180 is that the same just different gas and oil tanks

@bradpotter6401 2 ай бұрын

WD-40 acts as a good cutting oil when tapping threads in aluminum.

@fixinanddoinstuff2134 2 ай бұрын

Nice kit. Off to princess auto 😮

@ronaldbrown5745 2 ай бұрын

I haven’t seen course threads on Stihl or any chainsaw’s muffler screws!

@donyboy73 2 ай бұрын

Check on the 291

@m9ovich785 2 ай бұрын

I don't see the need for inserts when You have enough meat to go up a screw size ? Thanks Don..

@JosephDredd31 2 ай бұрын

Because the insert is stainless steel. Much stronger than the original magnesium or aluminum.

@philliphall5198 2 ай бұрын

Yes I like the stainless steel Heicoil best 😊

@trevorritchie2575 2 ай бұрын

Dony: "i like to clean my tap between holes." Mustie1: "There's a joke in there somewhere"

@desobrien3827 Ай бұрын

You forgot to tell the punters, to back the tap out 1/2 turn per turn, to "break the thread"...LOL, Oh it binds, no lube & you did not break the threads, that is why it bound up, plus no lube...plus the helicoil was too long, cut it down in length, plus the tail should be below the surface by about 1/2 a turn, so it does not pull out...