Type 65 Coupe Update Plus a New Antenna   Leave a comment

Some Body Parts, More IRS Conundrum and a New Microwave Antenna for KH6WZ

Inspired by a post on the Factory Five Racing forum and the dry and sunny weather this weekend, I decided to paint some of my body mounting parts. I am using gloss black Rust-Oleum Appliance Epoxy paint for these pieces. I have used this paint for my electronic and radio projects with good results. The paint dries very hard and is waterproof and washable, perfect for these parts.

Surface prep is easy for this paint, I scuff the surface with a 60 grit sanding disc on my random orbit sander. For the hard to reach nooks and crannies, I use a wire wheel chucked in my hand drill. Then I use liquid dish soap and water to wash off the grit and any oils. No primer is needed for this paint. Then I apply two or three light fog coats first, and then blast a thick coat for the fourth or fifth and final coat.

Here is a “before” and “after” picture of the front nose mounting hinge.

kh6wz - IRS2 016  kh6wz - IRS2 035

I did the same with the door hinges. Here you can see some weld splatter that will interfere with the mounting bolts, so I used a Dremel tool to grind those weld balls off.

kh6wz - IRS2 037

Although many of these parts will not be seen, I do not want them to rust. Other parts will be painted in the same way, and include the door frames, the rear glass hatch hardware and the emergency brake mechanism.

Meanwhile . . .

After spending some time fiddling with the factory-supplied accelerator pedal, I decided to buy an aftermarket gas pedal instead. I ordered one of Russ Thompson’s gas pedals earlier this week from Breeze Automotive, one of the Factory Five Racing Forum supporters. I was amazed the box arrived on Thursday – that was fast!

The new gas pedal is really a machined aluminum sculpture. Pictures on this will be coming later, since I need to get the engine mounted before the gas pedal goes in.

IRS – Finished – Sort Of . . .

The IRS section is now fully “dry-fit” completed, and the bolts will be tightened to specs in the next work session. One thing that is putting this assembly step on hold are the mounting points for the lower control arms – see the gold color on the right of this picture? That is the mounting bolt and as you can see, there is a lot of empty space between the mounting ear and the thin washer (the manual calls them shims). This cannot be correct, and I need to find what is wrong here. . . .

kh6wz - IRS2 032

Just after I ordered my Type 65 Coupe kit, I came across a lot of posts on the forums about the IRS  shafts (CV joints) coming apart. Those messages made me worry, but when my kit was shipped, the CV axles were on back-order. I called Factory Five Racing technical support, and they assured me that the problem has been fixed.

I am happy to report that my IRS system assembly went very smoothly, after the pumpkin was in place. The CV axles slipped right into the differential, and it felt just like many posts said – you can feel it lock into place. No hammering, no drama and no R- and X-rated words necessary.

Once again, Chris comes to the rescue by posting images of the IRS knuckles and which part goes on the left side and which one goes on the right side.

Here are some additional pictures of the IRS components and system . . . . “R” is for Right side of vehicle (passenger side in the US)

kh6wz - IRS2 002

kh6wz - IRS2 001

kh6wz - IRS2 004kh6wz - IRS2 003

kh6wz - IRS2 015

kh6wz - IRS2 008

kh6wz - IRS2 012

kh6wz - IRS2 018

kh6wz - IRS2 026

kh6wz - IRS2 028

kh6wz - IRS2 023

kh6wz - IRS2 033

Above left: The IRS upper control arm has another pair of small mounting tabs that are not mentioned in the assembly manual. No pictures are included in the manual, either. After a quick search on the Factory Five forum, I found out the smaller set of tabs point downward, and are used for quad shocks – used to minimize wheel hop during acceleration.

Give Me a Brake – Again

Now, the rear brakes are another story. Seems the Factory sent me the wrong rear brake kit. So now I have to wait for the correct parts to arrive, and then have to send the wrong parts back. . . Stay tuned for more . . .

Another Box Arrived this Week – a 10 GHz Slot Antenna

I received this nicely machined antenna for 10 GHz earlier this week. It is made by fellow SBMS member Dan, W6DFW.

Here’s a picture of this omni-directional microwave antenna. The background is the radiation pattern plotted by another SBMS member, Chuck, WA6EXV.

I am planning on using this to make my roving 10 GHz station even more portable, perhaps getting on 10 GHz FM mobile. More on this item and possible applications at station KH6WZ later.

kh6wz - 10GHz slot ant 001

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