TCombs UrS4, Coolant leak, Voltage Regulator

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Re: TCombs UrS4, Coolant leak, Voltage Regulator

Postby TCombs » Fri Feb 07, 2020 3:54 pm

Replaced the VR. Now all my lights, interior and exterior pulse, they go dim and bright non stop. I also feel like the car is idling a bit differently now. Is this normal for a new VR and just takes a bit for the "keys" to get a grove ground down in them from being flat as brand new, or did I maybe get a crappy VR?
1994 Audi URS4 Emerald Green
2010 Audi A5 Meteor Gray
2006 Yamaha FZ6
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Re: TCombs UrS4, Coolant leak, Voltage Regulator

Postby ringbearer » Mon Feb 10, 2020 11:43 am

Check voltage!
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Re: TCombs UrS4, Coolant leak, Voltage Regulator

Postby TCombs » Fri May 22, 2020 6:52 pm

Nothing to exciting happened recently, just some little maintain items. I have had an intake spacer probably longer than I have had the car, if I recall correctly. Thought it would be time to throw that in. As you obviously have to take off the manifold I thought it would also be a good idea to replace and upgrade the thermostat housing. Got a metal one from EFI. It was leaking a little anyway. Seemed a little rusty in there, but got some purple scotchbrite and cleaned it all up nice. I also replaced the coolant reservoir with an OEM from my brother-in-law's old UrS as I believe the old one was leaking coolant form the sides where the two halves meet. With the intake off, I also replaced some breather parts that I have had for years. There was oil residue everywhere under the intake and seemed to be some caked on oil deposits in the runners of the intake. Came off all like glue, but there was no oil residue in the intake house or throttle so must have been coming from the breather. I found a tear in the breather house, but don't know if that was there or if it was from taking the system off.
I still believe there is a little leak somewhere. Not coming from the reservoir or the thermostat as much as I can tell. The top coolant hose was leaking a little while checking for leaks. Put on a new hose clamp and it seemed to fix it but I don't know the age of the hose. Might be worth just replacing that housing (if I can find one) since its an easy swap. I flushed the system several times, but the dye I put in is pretty potent. Not necessarily the worst thing. Will make tracking leaks a little easier, and this way it won't be neon green everywhere. My bro also hooked me up with some intercooler supports for the bottom. Took about two minutes with his CAD and water jet system. Pretty rad. As we were putting the front bumper back on, we noticed that the bottom center grille (LLTek front valance) is rubbing on the intercooler and the driver's side grille is hitting the intercooler piping, preventing the bumper from sitting flush with the trim. I'll most likely will have to take a Dremel and get rid of some material on in the center. Still haven't figured out quite what to do for the driver's grille to help it sit flush. The front valance needs some TLC anyway. (Fibergalss repair, with some aluminum strips on the bottom for support and maybe fiberglass in some nutserts or just nuts in general for making a skid plate later down the line.)

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1994 Audi URS4 Emerald Green
2010 Audi A5 Meteor Gray
2006 Yamaha FZ6
TCombs
 
Posts: 135
Joined: Feb 8, 2017

Re: TCombs UrS4, Coolant leak, Voltage Regulator

Postby themagellan » Sat May 23, 2020 6:56 pm

Glad to hear it’s going well.

I read a few places the 034 billet checkvalves ballbearing get stuck, might be worth picking up an OEM(ish) plastic one
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Re: TCombs UrS4, Coolant leak, Voltage Regulator

Postby TCombs » Mon May 25, 2020 10:56 pm

themagellan wrote:Glad to hear it’s going well.

I read a few places the 034 billet checkvalves ballbearing get stuck, might be worth picking up an OEM(ish) plastic one



I thought I might have read that somewhere as well. I have one in my box, (OEM-ish, will have to check the brand), but I had spaced it and the 034 parts were all together and already in the parts pile when I installed everything. I'll keep an eye on everything.
Thanks
1994 Audi URS4 Emerald Green
2010 Audi A5 Meteor Gray
2006 Yamaha FZ6
TCombs
 
Posts: 135
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