The issue of the edge of the caliper hitting aftermarket wheels is common on the 1200 disk brake system. I have ground down the edge of the caliper for wheel clearance many times in the past.

Keep in mind if you are going to grind down the caliper for clearance you should fit new brake pads before grinding for clearance as the brake pad thickness directly influences the position of the cross plate.

Had one case where things were great. The car had several thousand miles on the new wheel tire package. Then I replaced the brake pads with some PBR semi metalic pads as an upgrade. Bolted the wheels back on and the car would not move...

I've had oil pumps fail in the past with the bypass sticking open. Swap on a different oil pump. A-series oil pumps are externally mounted and only take a few minutes to change.

Other testing-

Remove the spark plugs to make the engine easy to spin and take the load off the bearings. Take out the oil pressure sender. Spin the engine with the starter motor and see if oil comes out the sender hole. If no oil comes out you have a dead pump.

With the new oil filter you may need to fill it completely full of oil to get the pump to prime. I've never had an issue with priming but you have to cover all the bases.

Don't run the engine (only spin with starter motor) until you know that oil is getting pumped, then put an oil pressure gauge in place of the oil pressure switch to check if you are getting oil pressure.

It will take a long time for oil to show up and be visible through the oil fill cap.

Another variable is the shield gas. Straight CO2 raises the arc voltage slightly and penetrates deeper, not something you want when welding thin sheet metal.

75/25 argon/CO2 penetrates less than straight CO2, produces smoother welds and spatters less but does not tolerate dirty/rusty surfaces.

Yep, getting the surfaces clean was a top priority. Another good grease remover is Simple Green. I've been using Simple Green at full strength in a hand pump spray bottle to clean the engines. Won't take off caked on dirt but makes quick work of any oil seepage around old gaskets..

Simple Green is one of the recommended de-greasers for the home aluminum anodizing processes.

Quote:

Went out and took a look at both cars in the garage. Maximum gap is 1/8". Trusting memory is not safe anymore...

When the weather warms up I'll try re-gluing the frame to the skin.

Thanks for the info everyone.

OK, now that we have some adhesives chosen, does anyone have ideas on how to hold the frame to the skin while the adhesive sets?

On both of my 1200's the frame is about 1/4" / 6mm away from skin.

Only issue is those are for the BMC A series engine, not the Nissan/Datsun A series.

Last summer at Packwood Washington.

My autocross sedan works very well. It is setup with B310 struts shortened to take Z inserts (KYB GR2) and have Ground Control coilover kits with 250# springs.

I'm still running an A-12 motor and the 250#'s are great.

Front alignment is -2.5 deg camber, 7.1 degrees castor.

I'm thinking that with the extra weight of the L series motor you will want 250# springs minimum, maybe 275's.

A-16...