Ok so quick update to close this thread out. Sorry for the long post(s) but I wanted to follow up in case anyone else has these same issues in the future:
1) Temp gauge creeping past half
- Solved by wiring back aux fan in and bypassing temp switch (new rad has a plug in it) so it triggers high speed
- Plan is to order lower temp rad sensor and wire all that back in. Possibly wire in separate manual toggle for when car's off for track
I used this diagram to help me troubleshoot:
- FYI, took me awhile to get this going because I kept playing around with the 3 connector plug on the RH side of rad. Everytime I jumped temp sensor I could hear K1 & K6 relays trigger.
- I then jumped bk/gr to bk/bn on temp switch to trigger hi speed and then checked continuity on RH fan switch connector but no juice. Didn't make sense to me so I dug around a bit on the LH side under the headlamp and found the same connector! Continuity check and it was getting juice so I guess I just forgot where I removed aux connector from last time.
- Plugged aux fan to LH bodyside connector, put some spade connectors on rad temp switch bk/gn to bk/bn and A/C switch worked fine. Fairly ghetto but for now it'll do just to get by for the next few weeks.
2) Rough idle
- Drained fuel last night and refilled. Hesitation is gone! Idle is still not perfect but definitely close to being stable. Will follow up with a timing check down the road because I may have been slightly off tightening down cam gears
- I definitely think this was due to me venting fuel tank line by removing charcoal canister early on in winter and leaving things vented for a few months. Even though I had stabilizer in the tank it didn't help. From what I understand system should be sealed during storage.
3) Supercharger like whine noise gone
- All day long Sat whenever engine was running whine noise would change with rpm. Sounded pretty much like a supercharger. Re-confirmed all belt tensions and listening to noise closer sounded like it was coming from timing cover. Dug around online and my best guess was to change out chain tensioner. I ordered a new one but didn't install because old one seemed ok.
- Pulled out old tensioner and it seemed to be extended all the way. Maybe it was getting stuck and the chain was rubbing hardcore on the RH guide that tensioner pushes up against? Not sure.
- Popped in new one (pre-compressed) and broke in the new tensioner. My god I'll never forget the sound that the chain made. Can't describe it but it was enough to stall my engine and even cranking after, the engine didn't want to run. I gave it some gas next start and kept revs around 3500 like one procedure said. After about 5-10 seconds you could hear the chain noise subside in intervals and then after about 10 seconds engine started purring.
So all in all pretty efficient weekend.
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