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Old 09-09-2007, 08:23 PM
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Dipstick Tube Won't Seat

Evening, I recently purchased a 69 GMC 1/2 ton with a fresh 350. I noticed that a mist of oil was accumulating on the head and valve cover on the drivers side. I initially assumed it was the valve cover gasket but when I pulled the dipstick the whole tube came with me. I can't get the tube to seat in the engine. I thought it was too long so I cut it with a pipe cutter but that wasn't it. I don't wanna hit it with a hammer so what do I do?

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Old 09-09-2007, 08:35 PM
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Id look for another dipstick tube and then permatex it into the block
Shane
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Old 09-09-2007, 08:35 PM
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Does the tube go down to the ridge when slide it in? Mine is loose too. Usually, a little #2 Permatex before installing it will hold it in, or a new tube will most likely do it.

If it won't go in far enough to hit the ridge on the tube, a 7/16" open end wrench sitting on the ridge will give you something to tap on to seat it all the way down.

Mark
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Old 09-09-2007, 08:42 PM
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I was assuming that the lip had already been cut off (I think faster than I can type)
Shane
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Old 09-09-2007, 09:08 PM
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Cheap tubes are machined to "close enough" tolorences.Factory tubes have a tab with a hole in them so you can bolt it to the exhaust manifold.I had a cheap one once,that had too much of a shank on it,eventually it broke off in the block,and it was a pain to get out.
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Old 09-09-2007, 09:12 PM
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It's a cheap chrome one I'm sure. The PO put it on. The ring/lip is still on the dipstick (I did not cut it off). I will try and tap it with a wrench I guess.

Thanks for all the replies.
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Old 09-09-2007, 09:25 PM
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Make sure a previous stick has not broken off in there.You never know when you purchase something you did not build.It may have a small piece in the boss,and by tapping it in,you will dislodge the smaller piece down into your oil pan.Not likely the case,but you never can tell unless it is visually inspected.
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Old 09-10-2007, 08:44 AM
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What jmark said about using the wrench is a good idea. Although i would like to add that when i installed a chrome one in my 350 and open end wrench would'nt have got it done. I tried to sand off some chrome but it was futile. So i finally gave up and beat it in. What i found worked very well for me was a line wrench. Since you can slide it on and it wont fall off and catch your hand to hammer. And it still gives you the clearance at the block since that part of the wrench is cut away. Also remember if it isnt seated all the way your dip stick wont read the correct oil level.
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Old 09-10-2007, 09:46 AM
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I just bought a 68 chevy truck with a 327 in it.The dipstick tube that was in it was not for a chevy.I bought a cheepo chrome one and it would only go in part way.A piece of an old dip stick tube was broke off in the hole.What I did to get it out was I took an awl and placed it on the lip of the tube at an angle toward the block and tapped it in between the tube and the block.I did this in 3 places then I put in a large easy-out and turned it as I pulled on it and it came right out.To seat the new tube I took the dip stick out placed the tube in the hole and tapped lightly on the top with a plastic mallet until it seated.It sealed up fine with no scratches on the chrome tube.
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Old 09-10-2007, 06:32 PM
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Quote:
Originally Posted by tinman386
Also remember if it isnt seated all the way your dip stick wont read the correct oil level.
This brings up a good question as it looks like the top of mine what cut as well. Can I ask you guys for some measurements. Again this is for a 350. My tube (from the lip to the top) is 6 1/4" long which seems short. My dipstick is 19 inches long from the bottom to the bottom of the handle. Also the bottom of mine is scratched indicating it is to low. What is the distance from the bottom of the dipstick to the full line as I can't even see it.
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Old 09-10-2007, 07:14 PM
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I'd start from scratch and get a factory tube and stick from an unmolested stock 350. Most any 350 with the tube located as yours is should work. Cheap chrome after market crap tends to be just that, as well as being more trouble than it's worth. Put a new o-ring on it, lube it with a little oil or white grease and tap it into place.
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