I know I've heard guys talk about drilling out and tapping their la's mufflers to accept 4/40 socket head bolts but I was just curious as to what length bolt those of you that have done that are using. I'm getting tired of fighting with the OE muffler bolts. Thanks [:D]
Replacing OSla 15 muffler bolts
Moderator: hbartel
Looks like a 1" screw. Carefull, I did break a tap in one of my mufflers. I should have used more oil. It works great and makes engine changes so much faster and they don't come loose like the stock screws.
Victor (the Snake) Shamulus
Cell phone:760-809-2590
Work phone: 858-451-4344
RCCA # 503 AMA # 480994
Victor (the Snake) Shamulus
Cell phone:760-809-2590
Work phone: 858-451-4344
RCCA # 503 AMA # 480994
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Please note that aluminum galls very easily when being tapped, and with these tiny taps, it's easy to break one off! Because of the special attributes of aluminum, there is a special tapping fluid/lube for it (vs. steel), I use "Tap Magic" for aluminum and it works well. Be sure to back the tap up frequently to break out the chips.
Since I switched to McMaster Carr stainless steel, phillips-head machine screws for my muffler bolts, I have had no problems with metric-sized bolts of stock size, saves the hassle of re-tapping. The McMaster bolts are far superior to the very soft stockers.
Scott Gilkey
Since I switched to McMaster Carr stainless steel, phillips-head machine screws for my muffler bolts, I have had no problems with metric-sized bolts of stock size, saves the hassle of re-tapping. The McMaster bolts are far superior to the very soft stockers.
Scott Gilkey
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Hey Scott,
As an alternative or for those that prefer that option do you have a McMasterCarr part number? While they have everything under the sun sometimes digging through their site even with the search function can be rather daunting.
I've did a couple mufflers the other nite and everything worked great. I bought a nice little drill bit/tapp set at Lowe's awhile back for just this sort of thing and it has the bit matched up with the tap so there's no guess work..Thanks for the suggestions guys
As an alternative or for those that prefer that option do you have a McMasterCarr part number? While they have everything under the sun sometimes digging through their site even with the search function can be rather daunting.
I've did a couple mufflers the other nite and everything worked great. I bought a nice little drill bit/tapp set at Lowe's awhile back for just this sort of thing and it has the bit matched up with the tap so there's no guess work..Thanks for the suggestions guys
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