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Repairs and Maintenance Blog

The DeLorean needs routine maintenance and the occasional, more significant refurbishing.  Beyond that there are also a number of customizations and upgrades to improve performance, reliability and functionality. 

Digital Speedometer

Joe Angell

Angle drives break after five miles in my DeLorean, so I haven’t had a speedometer in years. Instead I built a clip-on digital one that picks up pulses from a Hall sensor passing by a VSS ring mounted on the rear axle, an Arduino, a 3D printed case and an Adafruit seven segment LED display backpack.

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Door Strikers and an Oil Change

Joe Angell

Adjusting my door striker pins so that the doors no longer rattled and latched properly was actually pretty easy. The oil change should have also been easy, but a bad oil filter and a lost oil vapor separator hot in the way of that.

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Fixing First Drive Issues

Joe Angell

My first drive uncovered a few issues — stalling on acceleration and deceleration, excessive exhaust noise, bad brakes, TPS issues, a broken key, a squeaky belt, trouble starting in Park, a broken oil pressure gauge sender, fixing closed loop idle, replacing a leaking fuel line, fabricating a bracket for the oil dipstick tube, and running out of gas. Here I get all of those fixed, and finally bring the car home.

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Modern Bulkhead Connector

Joe Angell

Diagnosing ignition issues led me to replacing the original bulkhead connectors used for the EFI wiring with a single, modern weatherproof one. This included building a new mounting plate with appropriately-sized holes for both the new connector and two of the original connectors.

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Ignition and Idle

Joe Angell

This post chronicles a series of issues and the subsequent debugging and diagnosing of ignition and tuning while getting the car to idle, but I finally got it going and ready for its first drive.

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Double-DIN Radio Install

Joe Angell

I swapped out the old radio with a new double-DIN unit with a touch screen and Apple CarPlay compatibility. This was a it tricky, since the center air vents are where the radio needs to be. I relocated them to the knee pad and wound up needing to build a new air distributor to get the radio to fit.

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Horrible Squeaking Sound

Joe Angell

After letting the engine site for a few days, I tried starting it and was greeted with a loud squeal and a slowly turning motor. The oil pump had failed, and the bearings needed to be replaced.

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Building an Exhaust System

Joe Angell

After waiting too long for a muffler, I decided to build my own using off-the-shelf parts, with minimal welding and no bending, with the end goal being to have as quiet of an exhaust as I could make... within the bounds of every aftermarket part being labeled "performance", that is.  It came out pretty good, but I have yet to hear what it sounds like...

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