Project Bulldog. (1988 Diplomat AHB)

LSM360 said:

Cool car, worth saving! I agree with Mark, just replace ignition with the kit bypassing the feedback computer that is up under the dash on the driver's side. Then a new or rebuilt non feedback carb. Try and find a "canadian" y pipe and dump the pre-cats and main cat. You'll have to plug some holes where the air pump/tube to cat were. These alone made mine run really nice! Eventually you could do dual exhaust. I got the A body kit from Jegs. 2.5" mandrel bent. Shifted my tank over (pretty easy) and extended the filler tube and the exhaust tucks under there real nice with some minor mods.

My guess is that your frame is good. Might have some floor or trunk rot from water flowing top down.

Click to expand...

floors felt very solid. thankfully its been sitting on pavement all these years. been thinking of cat delete on the civ daily since it rattles. Reg was telling me all about the glory of dual exhaust. i might. don't want the car to wake up the neighbors though

The first time I did a dual exhaust on an AHB and eliminated all the CATS I used full sized OEM style mufflers. It had such a nice sound without being loud. Just not suffocated anymore.

finally got word from the guy. she starts, runs, but won't go over 40MPH. rust isn't structural. brakes are shot. hope to have good news soon.

been a while. car has been away getting some work done. new A904 Transmission, Power Steering lines, brakes, tires, etc. shes back, runs and drives, but there is still much to do.
items on the agenda:
new oil sending unit. old one leaks.
fix rear bumper mount. old one is pushed in
patch antenna and rust holes
put a Dodge grille on. car is a Dodge that was given a Plymouth front end after the old one was cracked.
fix windshield and wipers


on the topic of wipers. the wiper switch isn't doing anything. green module was missing, when i plugged one in still nothing and it oddly silenced the door chime. i suspect the wiper motor is dead but fluid also doesn't spray either. the under dash is truly a wiring nightmare. my father put an aftermarket radio in here back in the early 2000s and now the dash looks like spaghetti
i aim to just put a stock AM/FM in here. hope the aftermarket radio was just a plug and play. had a subwoofer so that might be pain.

car coasted down the highway just fine but did bog out after a while. there is a hesitation when hitting the gas from a stop. gets worse when engine is hot. this the old "thermobog" i heard so much about? carb might need to be rebuilt. also quite dirty and been sitting for many years

When you look in the cowl, does the motor spin? Or are your bushings all broken?

AMC Diplomat said:

When you look in the cowl, does the motor spin? Or are your bushings all broken?

Click to expand...

took another look. yeah all the bushings are busted. normally the drivers side still works but nope. you can move the wiper arm by hand. don't think it's attached to the motor. i'm just curious why the fluid nozzles don't spray. only the passenger side of the T is broken. i'll replace that soon. it's rainy here and i'll wait to get back to this.

it's easiest to take the whole mechanism out and build it like that? it's such a pain to reach into that small space. i've only ever had the passenger wiper break on my Gran Fury

anyone know what the proper oil sending unit is for a AHB 4bbl? 100 right?