I am assuming that the rear heat exchanger that came installed on my 2002 viper is from a SRX. My reasoning is that the bleed hole bolt does not line up with the factory hole in the tunnel. Is this the case with any of the aftermarket companies or am I safe to assume it is a SRX part?
My next question, does anyone have a photo or a measurement of where I should drill a hole to obtain access. I would like to avoid having to remove the cooler.
My last question, and perhaps it should have been my first: Do I need to bother doing anything about this? Is it possible to leave it as is and bleed the system entirely from the front of the sled?
Thanks in advance.
My next question, does anyone have a photo or a measurement of where I should drill a hole to obtain access. I would like to avoid having to remove the cooler.
My last question, and perhaps it should have been my first: Do I need to bother doing anything about this? Is it possible to leave it as is and bleed the system entirely from the front of the sled?
Thanks in advance.
Hummmm
Well, if the bleeder screw hole does not line up I would be more inclined to think that it is an aftermarket cooler.....perhaps Bender which looks almost identical to the SRX cooler. I believe the bleeder screw in an SRX cooler would line up with the factory hole in the tunnel. If the sled is bled now and you are not having any problems I don't see any reason to mess with it. If you have to do work on it resulting in the need to bleed the system again it could be a pain....plus a little air bubble back there especially on a viper could be a real problem for you. I once had overheating problems and bled the system thru that hole right on the trail. Got the air pocket out and the sled ran fine with no overheating from then on. I would not attempt trying to drill the access hole with the exchanger installed......it could be a costly mistake. I'd try this.......do not drain any of the coolant or anything like that. Just take off your seat and drive out the centers of all the rivets in the rear of the tunnel that hold the rear heat exchanger and rear tunnel piece in place. Now drill out the rivets. The rear tunnel piece will come right out and the heat exchanger will hang from the two side hoses. Take some measurments for the bleeder screw and locate them on the tunnel. Now drill your hole and rivet everything back in place. No biggie. Good luck!
Madmatt
Well, if the bleeder screw hole does not line up I would be more inclined to think that it is an aftermarket cooler.....perhaps Bender which looks almost identical to the SRX cooler. I believe the bleeder screw in an SRX cooler would line up with the factory hole in the tunnel. If the sled is bled now and you are not having any problems I don't see any reason to mess with it. If you have to do work on it resulting in the need to bleed the system again it could be a pain....plus a little air bubble back there especially on a viper could be a real problem for you. I once had overheating problems and bled the system thru that hole right on the trail. Got the air pocket out and the sled ran fine with no overheating from then on. I would not attempt trying to drill the access hole with the exchanger installed......it could be a costly mistake. I'd try this.......do not drain any of the coolant or anything like that. Just take off your seat and drive out the centers of all the rivets in the rear of the tunnel that hold the rear heat exchanger and rear tunnel piece in place. Now drill out the rivets. The rear tunnel piece will come right out and the heat exchanger will hang from the two side hoses. Take some measurments for the bleeder screw and locate them on the tunnel. Now drill your hole and rivet everything back in place. No biggie. Good luck!
Madmatt
When you add a rear exchanger to a Viper (they did not come with them), you are supposed to drill a new hole for the bleeder screw. This applies to the special offering that Yamaha offered Viper owners back in '02 - '04. It seems to me that the Viper cooler was the same part as the SRX cooler if I remember right.
I have install instructions around here somewhere that I could scan and post if that helps.
You will need to bleed from that spot.
I have install instructions around here somewhere that I could scan and post if that helps.
You will need to bleed from that spot.
Thanks for the replies. Those install instructions would be a great help. I would like to use a hole saw without having to remove the heat exchanger. I have a jig for drilling holes without a centre bit. This should make this an easy job I hope.
Ya
That would be nice but you have no idea what make, brand etc your rear heat exchanger is and therefore without removing it you have no idea where the bleeder screw is.
I have installed SRX ones and aftermarket ones in vipers before. Sometimes I had to relocate the bleeder hole and somtimes I did not.
Madmatt
That would be nice but you have no idea what make, brand etc your rear heat exchanger is and therefore without removing it you have no idea where the bleeder screw is.
I have installed SRX ones and aftermarket ones in vipers before. Sometimes I had to relocate the bleeder hole and somtimes I did not.Madmatt
daman
New member
Ding is right on with his info...
Bigsur
New member
I just installed an SRX HEX in my Viper this past weekend, the bleed hole does not line up in the stock location, it's farther to the left (drivers side). I could probably get you some measurements this weekend if you need, but you may want to verify if it's an srx unit before you drill.
Thanks for the replies guys! I managed to get it all sorted out this evening. It was a rather crude method but it worked like a charm. I was able to feel the location of the bleed screw by flexing the tunnel until I felt the resitance of the screw against it. I then used a hole saw with a piece of wood as a jig.
American, . . . oops I mean Canadian Ingenuity perseveres once again . . .
Thanks Ding. It was actually Canadian laziness. I did not want to take everything apart to do it the right way.
lol we forgot to drill for my brothers viper before he installed the cooler. we did it with the template afterwars and drilled the head of the bleed screw. just used the viper bolt from the old crossover tube and all was good.
yamaha viper 123
New member
Ding do you think you could post or pm those instructions to the install for me? Thank you
I'll look for them tonight. I did see them a few weeks ago, so I know that I still have them somewhere.