Search found 66 matches

by cory58
Mon Jul 30, 2018 4:25 pm
Forum: Tech Forum
Topic: A/C Compressor Upgrade
Replies: 31
Views: 2065

Re: A/C Compressor Upgrade

Well, I decided that, based on the other things done to the car by the PO, there was only a minimal chance that he had converted to R134a and left all of the original R12 hoses and fittings. I can't be 100% sure, but the drier looks original. The system was blowing about 70 degrees from the top ven...
by cory58
Fri Jul 13, 2018 9:11 am
Forum: Tech Forum
Topic: Claret Red Leather
Replies: 2
Views: 249

Re: Claret Red Leather

I always thought auto/marine leather was finished differently than furniture leather. Is that not correct?

Cory
by cory58
Thu Jun 21, 2018 9:08 am
Forum: Tech Forum
Topic: A/C Compressor Upgrade
Replies: 31
Views: 2065

Re: A/C Compressor Upgrade

Some things I've learned from dealing with AC problems on my old Bimmers. 1. If you don't know what refrigerant you have, that also means you don't know what oil you have. I can't remember the names of the different oils, but the main oil that was used with R12 is not compatible with R134. The only ...
by cory58
Thu Jun 21, 2018 8:41 am
Forum: Tech Forum
Topic: A/C Compressor Upgrade
Replies: 31
Views: 2065

Re: A/C Compressor Upgrade

Good to know about the R12, I was considering doing the same conversion to R134 and a parallel condenser. If you switched to the parallel condenser, how were you going to mount it to the car? And the fan to the condenser? The stock unit has the brackets spot welded to the condenser frame. Rob Siege...
by cory58
Tue Jun 05, 2018 9:04 am
Forum: Tech Forum
Topic: Help with Radiator / Water Pump
Replies: 19
Views: 1011

Re: Help with Radiator / Water Pump

If you're dishing trade secrets, I'd love to hear about the hammer and chisel trick. Sounds like we've got some time to kill on this thread ... Not really a secret, just something I wouldn't have thought of on my own. Works best on screws/bolts with thick heads, like the fillister-type head on the ...
by cory58
Mon Jun 04, 2018 3:25 pm
Forum: Tech Forum
Topic: Help with Radiator / Water Pump
Replies: 19
Views: 1011

Re: Help with Radiator / Water Pump

Thanks for all the responses! Here is an update. 1. As I expected, 3 of the 4 socket/allen head screws holding the pulley on the water pump stripped once I put some real force on them. Thankfully a great BMW mechanic in Memphis (John Cox) showed me how to break loose stripped screws/bolts with a chi...
by cory58
Sat Jun 02, 2018 9:41 pm
Forum: Tech Forum
Topic: Help with Radiator / Water Pump
Replies: 19
Views: 1011

Re: Help with Radiator / Water Pump

While we're at it - how did you test your sensor switch? Did you suspend it so just the threads were in water, or was the sensor face contacting the pan? If the latter, you might be measuring the temperature of the pan, and the sensor could switch only at a much higher temperature than spec., so in...
by cory58
Sat Jun 02, 2018 7:03 am
Forum: Tech Forum
Topic: Help with Radiator / Water Pump
Replies: 19
Views: 1011

Re: Help with Radiator / Water Pump

Now I’m curious- do cars without A/C have an auxiliary fan? I thought it was for cars with A/C and only came on when using the air. Also, have you bled and re- bled the system? The symptom of the temp dropping at higher revs sounds like a circulation issue. Or, is the motor modified beyond the head...
by cory58
Fri Jun 01, 2018 4:21 pm
Forum: Tech Forum
Topic: Help with Radiator / Water Pump
Replies: 19
Views: 1011

Re: Help with Radiator / Water Pump

Thank you Joe! My earlier E12 only has a single stage fan. When I jump the wires at the temp switch, the fan comes on. Could there still be a problem with the relay? I also tested the new switch in a pot of water on the stove, to make sure it works (it does). Good idea regarding the thermostat. My p...
by cory58
Fri Jun 01, 2018 1:35 pm
Forum: Tech Forum
Topic: Help with Radiator / Water Pump
Replies: 19
Views: 1011

Re: Help with Radiator / Water Pump

Wow - this is a surprise to me, so I can only imagine how you're feeling! The aux temp sensor is below the outlet of the rad - is it at all possible that there is an occlusion just above the sensor? That wouldn't show up on a flow test. Can you shine a flashlight in the sensor hole and see light th...
by cory58
Fri Jun 01, 2018 12:32 pm
Forum: Tech Forum
Topic: Help with Radiator / Water Pump
Replies: 19
Views: 1011

Re: Help with Radiator / Water Pump

Update: Picked up the radiator from the radiator shop today. They cleaned a lot of grass out of the fins but the flow test was fine, so the car may run a little cooler but no help regarding why the aux fan will not come on when the temp gets hot.

Cory
by cory58
Wed May 30, 2018 6:13 am
Forum: Tech Forum
Topic: Help with Radiator / Water Pump
Replies: 19
Views: 1011

Re: Help with Radiator / Water Pump

Mike, Here are the symptoms: Car eventually gets hot when idling or in heavy stop/go traffic. I've never let it boil over. Revving the engine cools it down. Once it's hot, driving it in a lower gear, so the RPMs are higher, will cool it down faster and keep it at a lower temp. Temp is fine driving o...
by cory58
Tue May 29, 2018 12:56 pm
Forum: Tech Forum
Topic: Help with Radiator / Water Pump
Replies: 19
Views: 1011

Re: Help with Radiator / Water Pump

Mike, Thank you for the great info, as always. One of my usual online parts sources (maybe AutohausAZ) has a Graf water pump. I'll verify that it has a metal impeller. I took the radiator to a local shop at lunch. After describing the symptoms, the owner was almost sure the problem is not the radiat...
by cory58
Mon May 28, 2018 9:10 pm
Forum: Tech Forum
Topic: Help with Radiator / Water Pump
Replies: 19
Views: 1011

Help with Radiator / Water Pump

I've been having a cooling problem since buying my E12 in 2016. It doesn't overheat quickly, but eventually does. I realized the aux cooling fan does not coming on when the temp gets high, but it does come on with the A/C. Replaced the temp switch and that didn't fix it. Jumped the switch leads and ...
by cory58
Fri May 11, 2018 3:02 pm
Forum: Tech Forum
Topic: Shocks n' Struts
Replies: 13
Views: 1213

Re: Shocks n' Struts

Only tip on a spring compressor would be, don't crank them down any more than you need to. Upper strut mounts, yeah they got expensive, yowzer. I do see them significantly cheaper, but still no bargain. I have ordered from them before and was happy with the purchase. http://old.schmiedmann.com/disp...