Dave's 72 Dart

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Johnny Dart
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Re: Dave's 72 Dart

Post by Johnny Dart »

You're going great guns. I've still got the gearbox out on mine. :oops:
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Dave81
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Location: Worcestershire

Re: Dave's 72 Dart

Post by Dave81 »

Long time since my last update, so here we go.

The car was all back together for the start of July 2023, following months of pushing hard to make the MoparNATS for the last Nostalgia Super Stock round.
After draining the funds to get the engine build complete I ended up going for a Boss Hogg converter with around 3200 to 3600 stall. This should match the engine combo perfectly.

A few local runs were completed with the longest being about 30 miles, so around 200 all said and done. On the Thursday of the Nats, loaded the car and started the 120 mile drive to what was the conclusion of a five year plan.

Well, the roads were bloody awful, the air temp was around 23 deg, so sat in traffic around Birmingham watching the temp get to 220 was not how I envisaged the start of the trip.
The car, bar running warmer than usual, seemed to be happy, so as I dropped down onto the M1 near Watford Gap, I gave it some beans on the slip road. Within 30 seconds of easing off to a cruising speed of 60 aconstant plume of white smoke was billowing off the right-hand side of the motor.
I knew it wasn't water, so quickly exited to the services which was within 400m thankfully.
Huge line of trans oil followed me to where I stopped the car, the converter was spraying it onto the header collector, which was the the smoke show.

Out with the tools, to check everything and wipe it down. Let the car cool for two hours before setting off again as easy as possible. Only 30 miles left, so happy to limp it to the track and look at it after a beer.

Nope, one mile later, cruising at 55 the car cuts out completely, dead.
Again, small bit of luck that the live motorway was downhill and close to a lay by. That was it for me, Green Flag to the rescue and back home. I diagnosed the cut out very quickly as a fuse, which when replaced, let me start the car and dump it In the garage.
Thats how it sat for 7 months.
Dave Tildesley.....MMA-081
72 Dodge Dart
73 Plymouth Duster - SOLD

I wanna go so FAST i think i'm going to DIE!..........Then i'll shift into second!

"My Car is a work in progress, Probably never gonna get finished, never gonna have the money to Bananarama!!"
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Dave81
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Joined: Fri Jul 23, 10 4:01 pm
Location: Worcestershire

Re: Dave's 72 Dart

Post by Dave81 »

Nice day in Feb and invited to a local pub meet only 15 miles away.

Checked everything over and drove the car to the pub.
No drama thankfully and a decent pint to boot.

On the way back, gave it some up a local bypass, cue the smoke show. Only 10 miles left, so limped it home using light throttle and slow cruise.

Sack of Bananarama!, hate the bloody thing. Back it goes for another 4 months in solitary confinement.

It's gotta go back to Jims to investigate.

Well that happened three weeks ago, via trailer.
Out in the sunlight, we had a look at the trans oil........oh, not good.
Redy/Purple in colour and full on metal flake.
On the lift and off comes the sump.
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Dave Tildesley.....MMA-081
72 Dodge Dart
73 Plymouth Duster - SOLD

I wanna go so FAST i think i'm going to DIE!..........Then i'll shift into second!

"My Car is a work in progress, Probably never gonna get finished, never gonna have the money to Bananarama!!"
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Dave81
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Location: Worcestershire

Re: Dave's 72 Dart

Post by Dave81 »

At this point, my suspected front seal leak, had now grown arms, legs and heads.
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Dave Tildesley.....MMA-081
72 Dodge Dart
73 Plymouth Duster - SOLD

I wanna go so FAST i think i'm going to DIE!..........Then i'll shift into second!

"My Car is a work in progress, Probably never gonna get finished, never gonna have the money to Bananarama!!"
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Dave81
Posts: 7113
Joined: Fri Jul 23, 10 4:01 pm
Location: Worcestershire

Re: Dave's 72 Dart

Post by Dave81 »

The amount of metal in the sump put it into full rebuild territory.
Keep in mind this was built around 2000 miles ago with uprated parts.
Gutted and already broke was not a good combo.

After droppind the pan, we pulled the converter to see if we could identify the leak point.
The front seal was fine, but after looking at the splines on box, it became apparent something wasn't right.
We then had a look at the converter as bar that, the front seal looked good.
Didn't expect to find this.
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Dave Tildesley.....MMA-081
72 Dodge Dart
73 Plymouth Duster - SOLD

I wanna go so FAST i think i'm going to DIE!..........Then i'll shift into second!

"My Car is a work in progress, Probably never gonna get finished, never gonna have the money to Bananarama!!"
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Dave81
Posts: 7113
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Location: Worcestershire

Re: Dave's 72 Dart

Post by Dave81 »

Guess we found the leak point.

Trans was delivered to Duncan for a complete strip down and rebuild.
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Dave Tildesley.....MMA-081
72 Dodge Dart
73 Plymouth Duster - SOLD

I wanna go so FAST i think i'm going to DIE!..........Then i'll shift into second!

"My Car is a work in progress, Probably never gonna get finished, never gonna have the money to Bananarama!!"
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Dave81
Posts: 7113
Joined: Fri Jul 23, 10 4:01 pm
Location: Worcestershire

Re: Dave's 72 Dart

Post by Dave81 »

Amazingly after two weeks and various calls it appears that the 300 miles I did on the car didn't kill the trans.
Everything was good to reuse after a good clean, no damage to clutches or bands etc. Only the valve body had slight scoring on the surface, but nothing that should cause an issue.

So this leads to the only thing that could have contaminated the oil being the converter.
This will be split open in the next few weeks, I will post the outcome. To say I'm u happy with ACC and their Boss Hogg line is an understatement.

After a very expensive engine build last year, I opted to go with ACC to save £250 over the Hughes converted I actually wanted.
Well, that has now cost me well over £2k.

I've also had to dump all the teflon braided line and the mocal oil cooler, as their is no way you could clean it sufficiently. The AN fittings have been break cleaned and flushed.
Dave Tildesley.....MMA-081
72 Dodge Dart
73 Plymouth Duster - SOLD

I wanna go so FAST i think i'm going to DIE!..........Then i'll shift into second!

"My Car is a work in progress, Probably never gonna get finished, never gonna have the money to Bananarama!!"
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Dave81
Posts: 7113
Joined: Fri Jul 23, 10 4:01 pm
Location: Worcestershire

Re: Dave's 72 Dart

Post by Dave81 »

Today, I was Jims apprentice.
Decided to go over to his and sepnd a few hours replacing all the lines and cooler, so he only has to install the trans and converter.

I forgot how fun these cars are. A few hours turned into 8.
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Dave Tildesley.....MMA-081
72 Dodge Dart
73 Plymouth Duster - SOLD

I wanna go so FAST i think i'm going to DIE!..........Then i'll shift into second!

"My Car is a work in progress, Probably never gonna get finished, never gonna have the money to Bananarama!!"
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Dave81
Posts: 7113
Joined: Fri Jul 23, 10 4:01 pm
Location: Worcestershire

Re: Dave's 72 Dart

Post by Dave81 »

Took the opportunity to upgrade the cooler for a bigger surface area version and to relocate it up away from the radiator.

Duncan recons the converter was slipping constantly, so a potential reason for the car running warm, feeling 'off' sometimes and just not putting the horses down I was expecting for a 390 build.

So, another race to get the car sorted and back together before the next NSS race at Dragstalgia. Fingers crossed.

Oh, and after last year, that was my last to drag and drive with the car.

It's just not an enjoyable journey, so the Alfa went in April to be replaced with a pickup that can pull in comfort to Santa Pod in the coming years. The Dart is the only reason that I ended up with a pickup, so I'm classing it as another expensive mod.

If anything happens now, it's in the garage for 12 months. :banghead:
Dave Tildesley.....MMA-081
72 Dodge Dart
73 Plymouth Duster - SOLD

I wanna go so FAST i think i'm going to DIE!..........Then i'll shift into second!

"My Car is a work in progress, Probably never gonna get finished, never gonna have the money to Bananarama!!"
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Blue
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Location: Straight outta Royston

Re: Dave's 72 Dart

Post by Blue »

I assume you found out what was wrong with the convertor?
“This ain’t no party, this ain’t no disco, this ain’t no foolin’ around”
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Dave81
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Re: Dave's 72 Dart

Post by Dave81 »

Blue wrote: Fri Jun 21, 24 11:59 pm I assume you found out what was wrong with the convertor?
Still to cut it open, so will post what I find when it's done.
Needed to wait to see of Chris G wanted it back to review himself, but he has left it with me, so will ask Jim to cut it.
Dave Tildesley.....MMA-081
72 Dodge Dart
73 Plymouth Duster - SOLD

I wanna go so FAST i think i'm going to DIE!..........Then i'll shift into second!

"My Car is a work in progress, Probably never gonna get finished, never gonna have the money to Bananarama!!"
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cadboy
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Location: Worcester

Re: Dave's 72 Dart

Post by cadboy »

feel for you Dave, I sort of knew that racing has its expenses and that is one reason I never even thought about it.

I hope you get it sorted soon and and can get into the racing with her behaving and giving you the pleasure :thumbright:

good luck
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