Electrical Compartment Clean Up

Before:

My electrical compartment was a mess of wires, slide on terminal connections, t-tap connections, extra relays, and electrical tape. Every time I went in the compartment and moved a bundle of wires, my door locks would click. To top things off, I must have knocked the fan fail jumper wires out, and put them back incorrectly late last year. I was driving around without fans, and I didn’t know! The cold weather is what saved me.

Well I learned a lot about the fan wiring, and how the fans operate while trying to diagnose the problem. Also, I decided it was time to spruce up the electrical compartment. I finally found a good wire crimper to invest in, and re-crimped many of my electrical connections. I made a new fan fail jumper with fuse holders, and 20 amp fuses. I used wire ties on many wire bundles. The biggest change is that I added lots of flexible wire tubing. I chose white tubing to contrast the black fiberglass. The tubing prevents many of the splice connectors and slide on terminal connections from moving around, and they’re now well protected and hidden. It’s also easier to move stuff around and (IMHO) has aesthetic value.

After:

Going clockwise around the picture, at 12:00 is the wiring for my door launchers. Next is my RPM Relay. Next in the wireless unit for the door launchers (bundled up with a large wire tie). Lower right is the relays for the door launchers. Bottom center is the door actuator relays. Bottom left is the new fan fail jumper wires.

All put back together.

Supplies used:

Assorted wire ties: On hand
20 amp fuses: On hand
3/8″ split flex guard tubing (white): $2.29 @ Fry’s Electronics
1/2″ split flex guard tubing (white): $2.29 @ Fry’s Electronics
3/4″ split flex guard tubing (white): $2.29 @ Fry’s Electronics
(2) Blade Fuse Holder: $1.99 each @ Menards
Male Slide On Terminals: 2:98 @ Advance Auto Parts
Wire Crimpers: $24.99 at Autozone

New coolant hose

As I mentioned in a previous post, I noticed a very small coolant leak coming from the host from my coolant bottle. The hose clamp was corroded, so I ordered a new hose with clamps. This was my first venture with cooling system maintenance. I asked someone how tight should the hose clamps be – to paraphrase, they replied “it’s hard to say, you have to have a feel for it.”

So I didn’t want to drain the whole cooling system. It’s still March, and freezing cold out. I’ll do it later this year. I bought a small pump so I could empty the tank. I bought one new hose online, and received three:

Bonus! Thank you. Got my pump:

My problematic hose and clamp:

Old hose left, new hose right. Not quite the same…

New hose installed:

Add some new coolant:

Why is my old coolant brown?

All done! Haven’t seen the hose leak yet.

Supplies:

Prestone 50/50: On Hand
Water hose large to water bottle tank: $9.95 @ SpecialTAuto.com
Fluid Transfer Pump: $4.99 @ Autozone

Tightened Fuel pump boot cover

I’d been getting a gasoline smell in the car when I would fill up. Someone suggested it could be the clamp on the fuel pump boot cover. I’d never accessed this area, so I read up on it, and went for it.

You can still see some residue around the boot. I’ll check it again in the future.

The fuel was around the boot cover, and not the fuel level sender. The boot and cover seems like a terrible design. The hose clamp can easily slide off the boot cover, which I think is what happened. I cleaned off the top of the tank, repositioned the boot cover, and clamp, and tightened it back down.

I’m proud to say I filled up with gas over the weekend, and I couldn’t smell any gas in the cabin.

Chicago St. Patrick’s Day Parade

I was able to schedule a Saturday off of work (Yep, I work Saturdays during tax Season) and participate in the Chicago St. Patrick’s Day Parade.

My fiancé and I drove down early in the morning, and arrived too early. We got to drive up front with Rich W, and got to use a DeLorean Midwest Connection banner on my car. We waited for several hours in the cold, but had a great day. We got to show off the car a lot, and met lots of people. At one point, a couple people talked with us and about my car and DeLoreans in general. It took us awhile to realize it was Illinois Senator Dick Durbin.


Me with My D.


(above) People checking out my car


(above) Rich W’s fiberglass BTTF prop, the truck towing it, my car, Rich W’s car.


(above) Me, Senator Dick Durbin, My fiancé. My doors in the background.



And I have some video on Youtube: Link 1, Link 2

 

Trailing Arm Shield came off, coolant leak

So while I’m doing my oil change, I look back at the rear wheels, and am horrified to see this:

It appears the passenger side trailing arm shield came loose, and was wrenched down under the axle (I never heard or felt it). Probably when that happened the axle boot came off. I tried forcing the shield back into position, but couldn’t do it easily.

I just had rebuilt axles installed mid-last year. The car has only driven a few hundred miles since I last looked under the car at the tech session this fall. I’m guessing it hasn’t been long since the CV boot has been off.

So I had some questions about if I should rebuild the axle and replace the boot, and how can I secure the trailing arm shield better. I was relieved to find out I could reattach the boot, and secure it. I removed the clamps, put the boot back in place, and secured it with zip ties. Sadly, the boot has a small puncture, and should be replaced. I’ll think about doing this next winter, and I’ll keep an eye on the zip ties in the meantime.

I took the trailing arm shield off, and examined the clips. They’re corroded and kind of bent up. I don’t have a part number for them, but I’ll try to find some replacements. Since I had one trailing arm shield off, I decided to examine the TAB. After looking over the process for inspecting the TABS, I invested in a floor jack, and some jack stands. With the car jacked up, I tried wiggling the rear wheels, but they were secure. I can see the shims on my passenger side, and I can conclude I’m not missing any on the driver’s side. Someday I’ll check the bolts, but for now I’m satisfied.

I also bought a torque wrench for future TAB replacement, and other projects. So far I can’t figure it out.

While under the car, I also noticed a small coolant leak coming from the hose joint below the tank. The hose clamp looks corroded, so I ordered a new hose with clamps.

Good thing I do my own oil changes!

Out of Storage, Oil Change

I went and picked up the D last Thursday. I had charged the battery the previous night in my daily driver. The D started right up, and I drove it home without any problems. Or so I thought… more on that in the next blog post.

I drove the car up on my ramps, drained the oil. After installing a new oil filter, I emptied the last of the Castrol 20w 50 in one of my gallon containers, and started another. After I finished that gallon container, I realized I just dumped in a four quarts of 10w 40. $h1t. I bought the wrong oil. So I decided I didn’t care, added more 10w 40 and finished off with more 20w 50. Both are acceptable oils for the D.

Supplies used:

5 Quarts Castrol GTX 10w 40
2 Quarts Castrol GTX 20w 50
Bosch Oil Filter
Copper Crush Washer

Toby TABs, Alignment shims

I’m planning on replacing the Trailing Arm Bolts since the stock bolts are prone to bending, and eventually breaking. DeLorean Parts Northwest has replacement bolts made of inconel steel. Basically, this is aircraft grade steel that will never bend. They’re expensive, but well worth it.

This is a relatively easy job if you have the proper tools, and a manual transmission. With my larger automatic transmission, there isn’t enough room to slide the driver’s side bolt out. The old bolt now has to get cut with a saw, and the replacement inserted backwards. You could insert the replacement bolt correctly if the transmission was lowered, or removed from the car. Oh how I wish these were replaced when my car was being refurbished….

So this is going to be a huge job. I don’t have all the tools, but at least I have the bolts.

I also bought some shims for when I finally get a four wheel alignment. I’m told DeLorean shims are a little different than normal shims, so I bought 6.


Costs

K1000DP – Toby TAB Custom Trailing Arm Bolt Kit from DeLorean Parts Northwest – $74.95 plus $4.60 shipping

(6) DeLorean Shims @ $2.46 from DMC Midwest, $14.76 plus $8.13 shipping


 

The List

My list is forever changing. Stuff gets done, maintenance stuff pops up, and I dream up more stuff. Here’s what I’m currently working with:

Next year:
4 Wheel Alignment
Buy and install shock tower strut bar
Buy and install upgraded headlights
Left turn signal indicator in binnacle isn’t lighting up
Driver’s side window rattles when rolled down
Blend some scratches out of the stainless
Paint black areas on hood emblem
Fix warped headliners
LED Console lights
Correct Steering Wheel position
Replace Trailing Arm Bolts
Third Brake Light

Someday:
Install Coolant Self Bleeder
Replace dome lights (LED?)
Subwoofer in storage compartment behind drivers seat
Repaint Rear Louvers
Fixed warped Rear Fascia
Dynamat sound insulation
Black Side Stripe Decal
Recover or replace steering wheel
Learn how to remove and clean fuel injectors

Winter Storage

Last weekend I put the D in storage. I live in the Midwest, and don’t plan to drive the car in the winter. The car got put away on November 18th, and I don’t plan to take it out until maybe the St. Patrick’s Day parade. So it will be in storage for right around four months.

My townhouse only has a single car garage which the D resides in. Since I don’t plant to drive the D in the winter, I wanted to free up the garage for my daily driver. A family friend had an extra spot in their garage that they’ve rented to a corvette owner before, so I decided to store the D with them.

There are many thoughts on how a car should be stored. This topic always comes up on the DML and DMCTalk.com. Most recently, I got some information from this thread. The thought of draining the fuel tank was something I wanted to do, but I didn’t have the tools or the time. So opted to buy some fuel stabilizer. The bottle said it treated up to 25 gallons, and I think the D’s tank is 13 gallons. Regular dosage lasts 12 months, and doubling the dosage makes the gas 24 months, so I just added the whole bottle, and filled up the tank with fresh gas. This should prevent anything in the fuel system from drying out.

I didn’t put the D on jack stands. I’m hoping to maybe drive it once midway through the months I plan to store it. This should eliminate the possibility of flat spots on the tires, and circulate the fluids. I removed the battery, and will keep it in my basement (If my daily driver’s battery ever dies, I’ve got a spare!).

The garage it’s being stored in is crammed with junk… makes me a little nervous. I don’t have a cover for it right now, but I plan to buy one, and also put some padding over it. Lastly, the owner of the garage says mice and other vermin are a common problem. I bought a box of moth balls and placed four plastic plates of them under the car. I also put moth balls in the trunk, and left the open box on the center console. Even if the smell fills the garage, and sticks with the car, it’s better than mice making a home in my car and chewing up the wires.

I still need to call my insurance company and see if I can suspend coverage, but keep some kind of storage insurance on the car. It might be easier to just leave everything as is.

That’s it. Sleep well, D.


Costs:

Sta-bil fuel stabilizer: $5? at Target
Moth Balls: $4? at Home Depot

Breakdown #3

I can’t remember what I said exactly, but to paraphrase: “We’ve been driving around all morning, and it hasn’t broken down!” These words would soon haunt me.

On Saturday, September 15th, my fiancé and I were driving around scoping out venues for our wedding reception. The car was performing great. After I dropped her off at home, the car began to sputter. Quickly realizing what was happening, I pulled off to a side street before it stalled. Not again!

So I instantly thought that the problem from Breakdown #2 had not been resolved. During the last troubleshooting session, I had swapped out the RPM (Fuel Pump) relay, which had no effect. I also had my RPM Relay replaced after the June Maintenance-Fest. More on that later.

So I let the car cool down, and was able to drive it back to my parent’s house. After that, it didn’t want to start at all. I called Ken K to do some troubleshooting. Got out the Volt/Ohm meter, and began testing all things electrical, and it all looked good. So I took off the air box, and dumped some fuel down the intake. The car started for a second or two. So we guessed it was a fuel problem. Since the accumulator was the only part of the fuel system that had not been replaced during the refurbish, we suspected it to be the problem. The symptoms seemed correct. Replacing this thing wasn’t going to be easy for me…

After a few hours of sitting on my parents couch, I thought “if it’s a fuel issue, why not try swapping the RPM Relay?” I swapped it out with my spare, and the car started right up. Arghhh!

So take a look at the burn mark on the old relay:


Ken K advised me to clean out the female spade connections for the relay, and if any looked bent, to bend them back. The burned prong’s matching connection looked like it could be loose. I cleaned it with some sandpaper, and crimped it to be a tighter connection. I got some Dielectric grease since it’s highly recommended for the DeLorean’s electrical connections. It supposedly fills in the gaps in electrical connections. It does NOT conduct electricity, but rather is an insulator. This insulating effect causes electric to not arc out thereby preventing heat and eventually a fire hazard or at least a bad/burnt connection. So I smeared some of the grease on the female spade connectors, and the relay prongs. Hopefully this won’t be a problem in the future.

Two bad RPM Relays in only a few months. I bought my spare RPM Relay at SpecialTAuto.com. For my next RPM Relay, I’ll probably use a different vendor.

Costs:

RPM Relay from SpecialTAuto.com: $29.95 plus shipping
Dielectric Grease from Murray’s Auto Supply: $8 or $9?