MountainDew67

Ok, I need my radiator to sit higher than the engine.Right now, there about even, measuring 25"s from the ground. I have a an overflow tank in the back near engine that sits 26"s from the ground. I was told that I would need a air bleed if I cant get the radiator higher than the engine.Im looking to lower the front end aprox 2 inches, so keep that in mind. My questions are...

What is a air bleed, how does it work,pics?

Will the over flow can have any effect on system or act as a higher source of water, higher than the engine?


At this point the Radiator is out and all brackets are already done, I will be able to know soon enough wether moving the radiator up higher will work, but im interested in the air bleed. The cap that screws into the upper thermostat area, where do I get one and what is its name?

BMS2004

correct me if i'm wrong someone but since the cooling system is pressured it shouldn't matter where the rad is placed in relation to the engine. for the thermostat are you talking of plugging the bypass valve?

RXvedub

iTrader: (1)

There cant be any part of the cooling system above the filler cap. I have a bleed valve on my radiator in my bug.

If you have any questions let me know. I biult the car 5 or 6 years ago and has been running good since then thanks to the motor and tech suport from Robert at Rotary Shack.

680RWHP12A

rotaryshack.com

get some cheese!!!

MountainDew67

RXvedub Would you happen to have a picture of your air bleed on your radiator. Im just unsure of what it is exactly. Im fairly new with Vws and 100% new to Rotarys, but have been planning both together for some time and RAN RIGHT INTO THIS CAR by freak accident. At a price of 1400$ for the car, great platform to start fixing this car up and making it reliable.

Where can I buy an air bleed like yours. DId you ad an air bleed because your radiator sat below the highest point in the system or just as a precautionary measure?

About plugging some valve....no im not trying to plug any valves, but where the upper radiator hose is, right there there is a screw in cap of some sort. Trying to figure out where to get that and what its function is.

GET SOME CHEESE....well im gonna go try and figure this one out....off to the shack to see the news flash!

680RWHP12A

well he has an air bleed in the front of the car and the back. you have to get as much of the air out as you can... the rad hoses go above the rad. ,,,below the rad... so they need moultiple bleed valves...cheese please??!!

MountainDew67

I didnt get it at first, your asking for pictures of the vw/rx..I missed it! Ok, tomorrow I will get the digital camera from my buddy and quit playin around. Im taking the radiator down tomorrow to have it pressure checked, I drove it down the street the first time and saw water dripping from the front...Ill start with that, but I bet the radiator is ok, just needs air bleeds! I cant wait to drive this daily, people are gonna freak out when this thing launches. RXvedub and 680rwh wouldnt be impressed(they have more hp n there bugs and 7's) but for most people, this thing is a impressive monster.

680rwhp....you havea 12 a turbo motor for sale on your site,where did this come from, and why is it for sale (common question to ask about something someone is selling) Do you know how much hp its pushing and if any port work has been done? Thanks

680RWHP12A

the 12a turbo on the site is sold to one of the guys on the forum, william lions to be exact. and its got some xtra treatment too......

those notors push 200 hp+++++++++

get your cooling system problems solved first!!

MountainDew67

My brains always thinking ahead. I would like to get this little car into the low 13s sooner or later, but doesnt have to be now.Once I get the bugs worked out, I should be somewhere in the mid/low 14s, if im wrong,well,I got some more planning to do then. I need to get this car weighed and dialed in,and see what I need to do to her.....


Ok back to topic.....air bleeds, I guess I can research the internet as well....

MountainDew67

Well I found a air bleed valve that splices between two radiator hoses. Cool little setup for 25$ new on the internet...its from a datsun conversion kit thingy...found it somehow. There was a screw in type for 8.99 somewhere called Peyton something...anyways...Now I have an idea of what im looking at, but now I will need to get the air valve higher than the rest of the system ...might require a new hose or fitting. Heres a link to the air valve.

https://shell7.tdl.com/~jags/Pages/i...k-valve-ZX.jpg

RotorMotorDriver

iTrader: (1)

Yeah, I dont really know much on this VW rotary thing, but I was just always told the highest point of the cooling system should be the radiator cap.

~T.J.

PS - Robert did good helping me, he should know what hes talking about.

RXvedub

iTrader: (1)

Mountain... Post some pics of the motor compartment, the radiator and its hoses. The picture you have posted of the bleeed valve... They put one there because the hose gose above the radiator and the hose has a smal hump or raise point hence making an air pocket location.

Post pictures of your set up, I will take some pictures of mine and show you exapmles.

RXvedub

iTrader: (1)

BTW... do you know if they did anything to the tranny? If not, we will talk about that as soon as we fix the cooling problem, before you go doing burnouts and launching the car.

jorx81@aol.com

iTrader: (6)

I thougt you said all stock dude.

MountainDew67

I cant seem to resize the pictures, im working on it, I have took the pictures and have them on my hard drive. Ill look into putting them on a free server or making them smaller here in a little bit.

Some one vandalized my engine, They took off the plug wires,dist. wires, and one of the clamps to hold dist. cap on was taken off, wtf? I guess its time to park in driveway, but I kinda have the driveway full.

My transmission is stock and hard to find 1st and 2nd gear so it will need a replacement if I keep jammin on it hard. Well, it needs replaced anyway, but Id like to work out all my bugs with this transmission so I dont start any new problems until there all worked out and I can successfully drive this car atleast 300 miles! I was looking into a prostreet transmission from Rancho but im all ears on what you think I should do. Judging on the way the car felt the other day when I was jammin on it, the gear ratio inside the tranny seems fine,its fairly long winded but not really. As you know, the car is so light that engine revs fast enough, IMO, but this is my first rotary, and rotary bug. My email is Valiantpos@aol.com but I check this reguarly as well, so any place you want to talk, is fine with me!

Any 1/4 mile times from your bug and horsepower numbers or guestimate? Talk with you guys soooon.

MountainDew67

Heres one picture!

MountainDew67

If someone wants to copy the properties and steal the picture and make it an attachment that we can see more detail, feel free, I dont know how to.

RXvedub

iTrader: (1)

That attachment was fine, just put a picture of the front where the radiator sits.

To fix the trany bugs, you would need to pul it apart and change the syncros so you might as well go for the Rancho trany.

As for my car, the motor I ended up with at the end was a '91 turbo II with a RotaryShack.com blow thru set up w/ a 51mm weber and the waste gate disconnected.

I did 12.4 @ 98 in 105deg weather. In third gear it wouldnt make more then 4psi do to hot weather and stock turbo. The car only runs on VP C16 race gas.

Will put picks up tomorrow of the cooling system.

RXvedub

iTrader: (1)

BTW, thats got to be a 12a the way it sits in there, the apron dosnt look likt its trimed. What dose the exhaust look like? I still have my 12a exhaust that came out the right side fender if you are interested. Let me know, I will dig it up and take some picks.

MountainDew67

Heres a back side view. yes the engine is a 12a. My exhaust has 2 pipes (2" I beleive) that come around to the front of the motor and then theres a Y collector into one with a muffler on the end of that with a chrome tip. I was thinking about running the same setup,new stainless exhuast,borla muffler ( I already have the muffler). Im curious to what setup you have in your garage. As far as a front picture, I took it, but I didnt upload the pic and send it to myself from my buddys house, I took the radiator out so all you see is my hole in front of the gas tank. Im thinking after I lower the front end 2"s at minimum, that my new highest point for sure will be the upper radiator hose, which from that point is where I should put the air bleed. I would probably use the air bleed setup that I posted a few posts back. What do you think?

My apron, the pulley on the front of the motor hits off the apron a little bit.The good thing is, Im the one to put the small ding in the apron. When I bought the car, there was no ding or mark on the apron, so the guy never had the chance to get into the car(it was running crappy and cooling system did not work)so thats a good thing for longlivity of the engine. Who knows what happened before that tho. Reason im happy as well is that the last owner of this bug didnt know anything about MOP or premix, he had no clue that oil needs to go down the intake. So that scared me at first ALOT, but he said he didnt drive it much, and after driving in the car around the block,I can see why, it ran like crap and he knew cooling sucked, and the transmission is tuff to get into 1st and 2nd, so I really honestly believe he didnt drive it much. I dont feel the engine was hurt but premix is a must of course. I was thinking about adding a little extra oil in the gas to possibly coat the seals a little better, is there anything I can do to nurse the seals before daily driving this car?

12.4 @98mph is crazy. Assuming by what you stated, you shot off the line and half track like high 11 second car and the last half of the track you couldnt build boost, causing low mph,thus netting low ET because you werent gaining at the end like your suppose to. Ive seen cases of low mph compared to most other cars, but I have done a 14.1@99mph in a v8 car, so I know you got problems on the high end. I had a car that ran 13.4@104, and I was doing 104mph at about 1000ft -1320ft. I had put to low of gears in her....lol....I should have been around 107-8mph. At 12.4 you should have been seeing 112mph or so, but being a light car and never before racing a 16-1700 lb car, 108mph would be feasable as well due to you being so light bodied. Im just rambling on.......

680RWHP12A

thats a cleannnn bug you got there!!!! nice find...
as far as the bug info goes rxvedub is your man!! he knows alot about those things!!