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Don't take this as gospel, but try using two things:
1. A short piece of iron pipe, not threaded, and with the weld seam filed down using a half-round file, whose inside diameter matches the final desired outside diameter of the plenum orifice.
2. An exhaust pipe expander, sized in a range between the shortest deformed diameter in the present state, to the final desired diameter in the finished state.
Don't use #2 without first having #1 on hand, as #1 will restrict #2 from distorting the "good" arc of the orifice, as an unintended consequence of pushing against the inner "peaks" of the deformed part of the orifice, which may, as a result of the direction of the deformed tube wall acting like a gusset at each kink, be more resistant to correction than the non-kinked portion of the tube wall.
Don't take this as gospel, but try using two things:
1. A short piece of iron pipe, not threaded, and with the weld seam filed down using a half-round file, whose inside diameter matches the final desired outside diameter of the plenum orifice.
2. An exhaust pipe expander, sized in a range between the shortest deformed diameter in the present state, to the final desired diameter in the finished state.
Don't use #2 without first having #1 on hand, as #1 will restrict #2 from distorting the "good" arc of the orifice, as an unintended consequence of pushing against the inner "peaks" of the deformed part of the orifice, which may, as a result of the direction of the deformed tube wall acting like a gusset at each kink, be more resistant to correction than the non-kinked portion of the tube wall.
do you think I should take some pliers and try to straighten them some first
If you can get a small ball pen hammer and smack the bad parts, then follow by some skinny needle nose pliers to slowly bend it close to a round shape.
Order up the plenum reinforcements and use needle nose pliers you can get it done just have to be good enough to start the insert….same problem happened on my truck was the extra cost for taking it to a shop lol
I'll just chime in here and say that a pair of compound pliers have plenty of strength to squeeze that tin back into good enough shape without having to use hammers and brute force. Just take your time to get them round enough to get some plenum inserts in there and then use the hammer and a block of wood to seat them down. https://www.riffraffdiesel.com/rdp-p...serts-99-5-03/
And as far as compound pliers go, I've never found a better set than the pricey ones at Snap-on tools. At the time of this posting, cost is $89.25. But they work so well that I have three of them and never reach for any others unless I need to do electrical crimping or sheet metal cutting or something that requires a tool of a different speciality. These just cannot be beat for how well they grip and don't require the strength of a gorilla to get the job done. https://shop.snapon.com/product/Plie...(Red)/HL138ACP
Inserts are ordered and should be in tomorrow…. Idk if I will have time to mess with it tomorrow might be a couple days before I do, but sure hope this works not looking forward to changing the plenums
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