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Author Topic: can't get the torx head bolts out of bottom of Stihl ms 310 engine  (Read 659 times)

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Offline rdhart

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can't get the torx head bolts out of bottom of Stihl ms 310 engine
« on: September 10, 2013, 11:28:02 pm »
I cannot get the torx head bolts out of the bottom of my Sthil MS 310 engine in order to replace oil and gas tank etc..I have twisted every 27 torx bit that I had and haven't budged them. I have them soaking in WD40 overnight which is probably useless. I have bumped them some with a hammer hoping to loosen the locktite or whatever the problem is. Please help, Thanks
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Offline 660magnum

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Re: can't get the torx head bolts out of bottom of Stihl ms 310 engine
« Reply #1 on: September 10, 2013, 11:34:45 pm »
Warm them up a little next time
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Offline rdhart

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Re: can't get the torx head bolts out of bottom of Stihl ms 310 engine
« Reply #2 on: September 10, 2013, 11:38:11 pm »
Thanks, How can I warm them, they are recessed in the plastic housing?
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Offline 660magnum

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Re: can't get the torx head bolts out of bottom of Stihl ms 310 engine
« Reply #3 on: September 11, 2013, 12:00:18 am »
I forgot about the plastic.

Perhaps you are not using hardened Torx bits?

If I remember correctly the screws are threaded into the pot metal crankcase die casting? They probably have LocTite on them? but the plastic presents a problem.
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Offline brokenbudget

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Re: can't get the torx head bolts out of bottom of Stihl ms 310 engine
« Reply #4 on: September 11, 2013, 05:02:47 am »
use a soldering iron on them for a few seconds. say for about 10 or so. and yes, use a good torx driver.
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Offline rdhart

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Re: can't get the torx head bolts out of bottom of Stihl ms 310 engine
« Reply #5 on: September 11, 2013, 07:45:24 am »
Thank you, I had a soldering iron in mind to try after I clear out the gas. I am going to town to get the best torx bit that I can find first.
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Offline Fish

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Re: can't get the torx head bolts out of bottom of Stihl ms 310 engine
« Reply #6 on: September 11, 2013, 09:39:30 am »
I use a Wiha T-Handle with great results.  The old 029s used to be that tight, I would use my impact with the step down
adapter and tone the power down.  The impact will break it loose better.
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Offline rdhart

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Re: can't get the torx head bolts out of bottom of Stihl ms 310 engine
« Reply #7 on: September 11, 2013, 09:55:21 am »
Thanks, I tried my small 3/8 impact last night with no success. I am on my way to get the best torx bit anailable.
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Offline Fish

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Re: can't get the torx head bolts out of bottom of Stihl ms 310 engine
« Reply #8 on: September 11, 2013, 03:45:49 pm »
Turn your air up a tad.
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Offline rdhart

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Re: can't get the torx head bolts out of bottom of Stihl ms 310 engine
« Reply #9 on: September 11, 2013, 04:30:57 pm »
Power is not the problem. It stripped the torx bit. I just bought two new ones. Thanks
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