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problem with stock oil pan...

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Old 01-27-05, 03:18 PM
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problem with stock oil pan...

pineapple racing claims that hight out put motors (400+) flex and twist causing the oil pan to loose its seel with the motor. The pan they sell claims to stiffen the motor, which im sure it does by looking at how thick it is, and stops oil leaking. my question is has anyone actually had this happen or is it just something to say to push over priced oil pans?

oh ya it also adds an extra qt. of oil
Old 01-27-05, 03:40 PM
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Leaky oil pans are a common problem, and it is known that high-output rotaries do "twist" the engine to some extent. The 787B had a stiff plate attached to the bottom of the engine to help prevent this twist.

My only gripe with that pan is there's no provision for the stock oil level sender, which is VERY necessary. If it had a provision for the sender, I'd probably be saving up for one . A bung for the sender could probably be fabbed on, but it would be rather tricky to find the right spot so the oil level triggers the sender at the right spot. Get it too high or low and it goes off all the time or only when it's too late.

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Old 01-27-05, 03:56 PM
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Oil pan leaks are a common problem, and a pain in the *** to fix. If the subframe were designed differently, the pan could easily be dropped, and resealed. Unfortunately, the subframe must be lowered to remove the pan.

Mine leaks, and I have not gotten around to fixing it ............ yet!!
Old 01-27-05, 04:06 PM
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Vspecpgt and i are putting the new pan on now and i agree that it sucks that there isnt a bung for the sensor. i do like how the oil drain is positioned though. all the oil is going to be drained since the plug is on the bottom.
Old 01-27-05, 04:14 PM
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Must be noted that the 787B was twice the 13B length, and put out 450 ft-lbs.

I could see housing slip as an issue, but dowel pins would fix that. With no slip, the engine has high torsional stiffness. Example, a 10" od alum tube, 1/2" thick , would twist about .0003" along a 12" length, when torqued 300 ft-lbs. Stock sheet metal pan would flex with an engine that twisted that small amount.

My guess would be leaks relate to pan bolts that are shared by the engine mounts.
Old 01-29-05, 12:23 AM
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I'm considering getting that oilpan pretty soon, when anyone figures out what level for the bung you need to place it pm me.I think it would be a very good purchase. Holds an extra quart also doesn't it?
Old 01-29-05, 07:44 AM
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An easy solution to the oil leveler not being there anymore after installing the pan would be to actually CHECK THE OIL FROM TIME TO TIME! C'mon people, it's not that hard.
Old 01-29-05, 08:26 AM
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I remember the first motor I rebuilt I had no problems with the oil pan leaking during break-in. The first 2000-3000 KM I didn't even go past 5000 rpms let alone boost....with not a single drop of oil coming from the oil pan seal. Once I got her tuned/boosted...that thing leaked every-freakin-where.
Old 01-30-05, 07:14 AM
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I've got the new oil pan and put the oil level sensor in it. All you do is measure the distance from the top of the stock oil pan and place in the same spot on the new one. It's not that hard. Took me 1/2 hr.
Old 01-30-05, 07:39 AM
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what's the general consensus on the gotham oil pan brace?

http://www.gothamracing.com/catalog/...oducts_id=1076

would it be a good in between?
Old 01-30-05, 10:01 AM
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Originally Posted by RX794
An easy solution to the oil leveler not being there anymore after installing the pan would be to actually CHECK THE OIL FROM TIME TO TIME! C'mon people, it's not that hard.

the reason that i would like to have the sensor is so that if i am driving and i should happen to get a leak somewhere. i would hate to be driving and not know that i had no oil. i check my oil all the time but its just added safety for when you are moving for me.
Old 01-30-05, 10:06 AM
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Seems pretty cool. I was going for more oil capacity in my desision though cause I track the car alot.
Old 01-30-05, 10:28 AM
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I was able to reseal my pan without removing the subframe. But it wasn't easy or fun. Disconnected the motor mounts, then jacked up the engine. You can get a few inches out of it. Then use your fingers and a popcicle stick to spread the atv on thick. This is of course after you have tried to clean the two mating surfaces as much as possible ... Took about an hour and a half. And so far, no major leaks. It really is too bad that the engine or subframe have to be removed to put on a new oil pan. I'd be interested in the oil pan if it actually did stop leaks. Anybody use it yet?
Old 12-31-05, 01:46 PM
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yeah im interested in this aswell... can someone link me to the pan? im to lazy to search for it...
Old 12-31-05, 01:55 PM
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Originally Posted by mono4lamar
yeah im interested in this aswell... can someone link me to the pan? im to lazy to search for it...
Haha, well at least you werent lazy enough to search the archives for this sucker!
Old 12-31-05, 03:01 PM
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haha you seem to follow me around mr. Cgotto
Old 12-31-05, 05:21 PM
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here is the Pineapple oil pan http://www.pineappleracing.com/ProdSvcs1.html

NOT CHEAP!!
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