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Old 06-24-2004, 10:37 PM   #1
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Default presure trouble in r40 tank

hello there every one..
i have trouble with my r40 tank .. it has no pressure..
take a look at haras roar winning r40 .. he changed the tanks pin that seems to have a screw and a washer.. enybody solved or knows how to solve this problem?? HELP URGENT!!

i apreciate your help tnx
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Old 06-24-2004, 10:39 PM   #2
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You are kinda vague here.

What do you mean by pressure? More importantly what makes you think that the tank has no pressure?
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Old 06-24-2004, 10:43 PM   #3
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sorrry for not being specific

The tank lid does not closes well... and it losses pressure when it is open and the fuel does not go to the engine properly.. it is also hard to turn on the car.. when i blow from the tubing that goes into the pipe.. the air goes out from the tanks lid and sends fuel to the engine poorly.. tnx
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Old 06-25-2004, 12:30 AM   #4
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Quote:
Originally posted by r40 pro
sorrry for not being specific

The tank lid does not closes well... and it losses pressure when it is open and the fuel does not go to the engine properly.. it is also hard to turn on the car.. when i blow from the tubing that goes into the pipe.. the air goes out from the tanks lid and sends fuel to the engine poorly.. tnx
Ahhhh i see. Sounds like your tank is busted. They are cheap liek $9 or you could send it to HPI for a warranty I guess. Mine works perfectly so I think yours is an exception.
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Old 06-25-2004, 04:59 AM   #5
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you might have a small leak in it around the seam...Just send it in,they'll send you a new one...For 9 bucks,you might want to buy one also.....just for a spare..
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Old 06-25-2004, 12:05 PM   #6
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OK.. i guess ill just buy a new tank . thanks for your help

Now, another thing.. Im not the only oneat my track that seems to have this same problem .. WHY?? does anyone at your track have this problem?? thanks
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Old 06-25-2004, 01:34 PM   #7
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Default no pressure?

Quote:
Originally posted by r40 pro
sorrry for not being specific

The tank lid does not closes well... and it losses pressure when it is open and the fuel does not go to the engine properly.. it is also hard to turn on the car.. when i blow from the tubing that goes into the pipe.. the air goes out from the tanks lid and sends fuel to the engine poorly.. tnx

What pipe do you have? If it is polished, somtimes during the process of polishing the compound will get into the little pressure hole and clog it! I have seen this in person, when you have the car runing on the box, pull the pressure line from the tank lid, rev the car, if you dont see smoke coming from the pressure hose then you have a cloged nipple!( )
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Old 06-25-2004, 02:24 PM   #8
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NOt the pipe.. i checked it with a non polished black yokomo pipe
i used to have on my gt4 but.. its not that..
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Old 06-25-2004, 04:01 PM   #9
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I think I saw multiple thread of R40 owners report the similar cases of the R40 tank..........I think you should send in the R40 tank (and I believed all those R40 owner did send their own to HPI already and got the new tank)...
Meanwhile, buy a new one and give it a try....
Don't be surprise, NTC3 has the similar problem of the pressure nipple located at the NOT SO GOOD position, they recall the tank and redesign the pressure nipple location and come out with a new tank...

May be R40 will do the same thing in the future....
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Old 06-27-2004, 03:17 PM   #10
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I hope they do, and fast!!
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Old 06-27-2004, 03:21 PM   #11
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What other fellow racers have told me is that the r40 tank is fine when its new, but like after 5 races, the tank gets busted.

Any answers??
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Old 06-29-2004, 09:30 AM   #12
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Quote:
Originally posted by r40 pro
What other fellow racers have told me is that the r40 tank is fine when its new, but like after 5 races, the tank gets busted.

Any answers??
So far, more then 5 races from my friends R40 and all other R40 at our track...no such problem.

They break their steering knuckles and rear arms mount much faster then the tank....
It might be some individual cases....
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Old 06-30-2004, 12:24 PM   #13
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if no pronlem found on the tank, why did atsushi hara place a different pn on the tank.. watch the pic, it seems to be a screw with a lock nut
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Old 06-30-2004, 06:06 PM   #14
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Quote:
Originally posted by r40 pro
if no pronlem found on the tank, why did atsushi hara place a different pn on the tank.. watch the pic, it seems to be a screw with a lock nut
It is simply because the stock tank is held together with a roll pin in this location. In theory the pin could fall out (I have never seen it happen but hey) rendering the tank useless. This is just some extra security that this wont happen.

My original tank has several hundred tanks of gas through it and it is sealing perfectlt still. I think some people are unlucky.
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