70 S2 0044Q

[Sandyman]

Canadian thanksgiving this weekend. Planning to put some more miles on my baby. The next things I need to do on the Europa is get the oil pressure, engine temperature and fuel gauges working. I have powered the gauges by joining the sender wires and there is no movement on the gauges. Am I right in thinking that the oil and temp senders change their resistance with pressure or temp? The new fuel tank came with a new sender unit so I think the gauge is FUBAR. Can I measure the resistance across the sending units? I am also hoping to weigh the car on Saturday. I am interested to see how much more weight the Spyder Chassis adds. Happy (socially isolated) turkey time to my fellow Canadian friends.
Sandy

[BDA]

Did you hook up the voltage stabilizer? Do you have good grounds?

[Sandyman]

New voltage stabilizer. The ammeter and gauge lights all work, leading me to think ground is good.

[BDA]

Neither the ammeter nor the gauge lights use the voltage stabilizer does not use the voltage stabilizer so that tells you nothing. Looking at the wiring diagram, it’s the senders that are grounded. The gauge connected on one side to the sender and the other to the voltage stabilizer. I don’t know if it matters if there is a wrong way to connect them.

Check your wiring diagram and make sure everything is hooked up properly. The TC wiring diagram might be easier to follow than the S2 and there shouldn’t be any differences in how this area.

[jbcollier]

Given that all three gauges are not working, it sounds like a power issue.  Jumping the sensors would seem to confirm that.  While the fuel and temp gauges are supplied through the instrument voltage stabilizer, the oil pressure gauge is not.  You can use a simple test light to check for power at the voltage stabilizer and gauges as it's not an accuracy issue.  Check connections at the "green" fuse as well.

[Bodzer]

Well done on the drive Sandy! All the best for Thanksgiving.

[Sandyman]

Thank you John, I will do the reverse Lotus position with my head in the foot well and probe with a test light.

[Sandyman]

Official weigh in, 640 kg. or 1400 lbs. No spare tire, full of fuel.

[Chuck Nukem]

Official weigh in, 640 kg. or 1400 lbs. No spare tire, full of fuel.

On the button!

[Bodzer]

Thanks for sharing that sandy. It’s nice to have an official value. My Europa came out at just over 600kgs after its electric conversion.

[Sandyman]

Getting close to putting baby to bed, 1 or 2 more runs scheduled. I tried to get an alignment last week but their equipment would not clear the front fenders. My shop/barn floor is not level enough to accurately get closer to specs. than I have it now. Any input greatly appreciated! Hopefully I have fixed the rocker cover oil leak. (added a cork gasket and sealer).
Sandy

[jbcollier]

What tools do you have?

Can you measure toe-in?

Can you measure camber?

You have a Spyder chassis, correct?  Not familiar with what is adjustable with the Spyder rear suspension.

[Sandyman]

John, I have access to a 16 foot straight edge. I have spirit level, measuring tape and the tools to adjust the suspension. No flat area to put the car on. I have the specs. Here are pictures of the front and rear components.

[jbcollier]

On both the front and the rear, only camber and toe are adjustable.  Are there no old school garages about?

Ok, let’s start with the camber.  You can buy an accurate digital angle finder from Lee Valley.  It for setting saw blades.  It’s magnetic and about $50.  Get apiece of square steel tubing and cut it so it’s long enough to span the wheel rim from bottom to top edge.  Somewhere in your area there has to be a section of flat concrete.  Park on it.  Lay the square tubing flat on the concrete and zero the gauge.  Hold it upright against the wheel rim.  A 90 degree reading is 0 degrees camber.  Check all four wheels carefully and check against the specs.  Either jack up the car and make the adjustments right there or head home and then return to check it again.

Please do not crawl under a car supported just by a jack.  Lost one friend that way and it wasn’t pleasent.

After that, we can work in the toe.  Do you have a helpful friend?

[BDA]

I think this is what JB is talking about with a digital angle finder: https://smile.amazon.com/gp/product/B07R12DZQ9/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1. Here's a thread on how I made a simple camber gauge. The standoffs I stole from my old camber gauge be replaced with bolts that are double nutted to same length. Very simple and accurate to 1/10 of a degree!