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Old 03-22-2015, 02:07 AM
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Can i drill drain holes in my frame

Need to know because there is a lot of crap in the frame that needs to go. Thanks

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Old 03-22-2015, 02:22 AM   #2
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Mine does too dirt build up honestly I'd say you could just don't go to big on the hole size and watch out for seams. I have two holes for bolts on the rear of the frame and I can pump water from a hose through one and it'll drain out the other if you're worried about it then don't bother if you have dirt and mud in the frame like me it doesn't hurt anything. Also if you're in the mud a lot it'll just fill up quicker with shit now that you have holes

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Old 03-22-2015, 05:31 AM   #3
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It's not a bad idea to drill 4 holes in the underside of the frame, one at each lower control arm bracket. Just behind the fronts, and just in front of the rears, in the low spot of the frame is where the dirt/sand collect, and trap moisture. Also one of the first places to rot through. I drilled a 1/2" hole at each spot. If you have large flakes/debris stick in there, you'll want to break it up first, don't drill a huge hole. I used a small flexible rod with short cables drilled through the end. I then tied a few nuts on the cables, chucked the other end in my cordless drill, and essentially made a pulverizer whip. Insert the whip end into the frame and turn on the drill using slow speed, the nuts whipping around will break up any debris so it can be flushed out with air/water. If you have a lot of large rust flakes, you may want to evaluate the integrity of your frame. They rot from the inside out, so once it shows up outside, it's often too late.
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Old 03-22-2015, 05:40 AM   #4
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Originally Posted by AH1COBRA View Post
if you have dirt and mud in the frame like me it doesn't hurt anything. Also if you're in the mud a lot it'll just fill up quicker with shit now that you have holes
Just the opposite. Dirt and sand in the frame will trap moisture and accelerate rust. If you're in the mud a lot, that means you should flush out your frame more often, and consider an internal frame coating like Eastwood. Mud will find its way into the frame regardless. The 4 additional holes, properly placed, will aid in flushing out and allowing drainage.
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Old 03-22-2015, 01:28 PM   #5
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Just the opposite. Dirt and sand in the frame will trap moisture and accelerate rust. If you're in the mud a lot, that means you should flush out your frame more often, and consider an internal frame coating like Eastwood. Mud will find its way into the frame regardless. The 4 additional holes, properly placed, will aid in flushing out and allowing drainage.


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Pic from when I drilled 1/4" drain holes, vacuumed frame and then did Eastwoods last fall. Looks good still this spring.
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Old 03-25-2015, 08:50 AM   #6
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I was thinking about drilling new holes to help keep the frame clean, but I first tried just a strong stream of water from the front frame access points. I was surprised how clean the frame got from the water being forced in and the mud out. So my enthusiasm waned about drilling new holes . As a further maintenance step, I then squirted some engine oil into the existing holes to inject a bit of anti-rust substance in there until the next time I want to hose it out. If I think about it, I'll squirt a little more oil in there to keep it covered. If I feel like saving a few pennies, I'll even "recycle" my used oil in there. In any case, it seems to work for me.
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Old 03-25-2015, 09:41 AM   #7
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Originally Posted by Ryan Angela View Post
It's not a bad idea to drill 4 holes in the underside of the frame, one at each lower control arm bracket. Just behind the fronts, and just in front of the rears, in the low spot of the frame is where the dirt/sand collect, and trap moisture. Also one of the first places to rot through. I drilled a 1/2" hole at each spot. If you have large flakes/debris stick in there, you'll want to break it up first, don't drill a huge hole. I used a small flexible rod with short cables drilled through the end. I then tied a few nuts on the cables, chucked the other end in my cordless drill, and essentially made a pulverizer whip. Insert the whip end into the frame and turn on the drill using slow speed, the nuts whipping around will break up any debris so it can be flushed out with air/water. If you have a lot of large rust flakes, you may want to evaluate the integrity of your frame. They rot from the inside out, so once it shows up outside, it's often too late.
This is great advice, I'll be doing exactly this. Thanks for the post!
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Old 03-25-2015, 07:11 PM   #8
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Originally Posted by Airstreamer67 View Post
I was thinking about drilling new holes to help keep the frame clean, but I first tried just a strong stream of water from the front frame access points. I was surprised how clean the frame got from the water being forced in and the mud out. So my enthusiasm waned about drilling new holes . As a further maintenance step, I then squirted some engine oil into the existing holes to inject a bit of anti-rust substance in there until the next time I want to hose it out. If I think about it, I'll squirt a little more oil in there to keep it covered. If I feel like saving a few pennies, I'll even "recycle" my used oil in there. In any case, it seems to work for me.
Do the drain holes anyway. Water will pool up in there and probably never dry out. Just my 2˘ (1˘ after taxes)
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Old 03-25-2015, 10:26 PM   #9
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Agreed do drain holes. The frame traps about 1/2 inch of water and whatever in the low mid section of the frame. Drill the holes, flush the frame, and apply an internal frame coating. Once you flush the frame you will probably be surprised how much stuff collects in there.

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