Johnny's Dart repairs

Johnny Dart · Post by **Johnny Dart** » Wed Apr 23, 14 7:15 pm

Had a play with the exhaust X pipe at lunch today. I had to cut the X pipe up because my Dart has already got a 2 pipe system built by someone else, and the distance between the 2 pipes is bigger than the standard X pipe.
I'll have a weld up tomorrow lunch time.

Oxygen sensor will go in the X pipe .

Johnny Dart · Post by **Johnny Dart** » Wed Apr 23, 14 10:32 pm

Did a bit more exhaust this evening.

Cut off old nasty exhaust pipes

Tacked and checked for fit

welderized

Test fit, just need to make up the rest of system.

I would like to go for over axle pipes. Does anyone know where to get some in the UK ?

Mossy68 · Post by **Mossy68** » Wed Apr 23, 14 10:51 pm

Good work matey.
I think you can get various bends of pipe on E bay. So I was told ?

Johnny Dart · Post by **Johnny Dart** » Wed Apr 23, 14 11:11 pm

Mossy68 wrote:Good work matey.
I think you can get various bends of pipe on E bay. So I was told ?

Yes . I have had a look tonight, I can get 2 1/2 inch over axle pipe, but they only have 1 left ......

Johnny Dart · Post by **Johnny Dart** » Thu Apr 24, 14 7:13 pm

Finished off the X pipe today, and fitted the oxygen sensor boss.
Waiting for some welding bends and clamps to come tomorrow.

Bozwell · Post by **Bozwell** » Thu Apr 24, 14 8:36 pm

Dave999 wrote:on these axles you need a case spreader to put the blasted things back in without risking destroying the shims

Dave

you can use a large G clamp and squeeze the axle case top to bottom to spread the casing to fit the diff

Dave999 · Post by **Dave999** » Fri Apr 25, 14 2:25 pm

yeah but thats a bit scary

or i guess prop it between two tressles and invite a fat lass round for a sit down

just strap her belt round the pinion snubber and delve in from beneath

Dave

Johnny Dart · Post by **Johnny Dart** » Fri Apr 25, 14 9:34 pm

I've done a bit more exhaust tonight.

Just need to source some mounts, and hang it right.
Sounds like a V8 now , rather than 2, 4 cylinder engines. And runs much smoother

Dave81 · Post by **Dave81** » Sun Apr 27, 14 8:39 pm

Will this make the NATS JD?

Would like to hear the new exhaust.......though i've been converted (in taste) from X pipe to individual pipes (sound preference for me)!

Coming on a treat!!

Johnny Dart · Post by **Johnny Dart** » Sun Apr 27, 14 9:02 pm

Dave81 wrote:Will this make the NATS JD?

Would like to hear the new exhaust.......though i've been converted (in taste) from X pipe to individual pipes (sound preference for me)!

Coming on a treat!!

I doubt I'll make the Nats this year.Although I've done quite a bit of work on the Dart, I still need to do loads more to make it how I want it.
Now the weather is getting better, I have lots to do on my property, that I couldn't do last year because of the rain.
And that may slow up the progress on the dart.I hope not.
Personal choice , pipes, I think. But I also wanted to stick the oxygen sensor to be able to sense ave mix of both banks.

Bozwell · Post by **Bozwell** » Sun Apr 27, 14 9:12 pm

Dave81 wrote:though i've been converted (in taste) from X pipe to individual pipes (sound preference for me)!

:

Cross over pipe explained

Johnny Dart · Post by **Johnny Dart** » Sun Apr 27, 14 10:07 pm

The benefit of the X pipe for me,other than the oxy sensor, is that it runs smoother, its quieter, and should be more responsive , as one bank of cylinders, help suck out the other bank ( scavenge effect )

Mossy68 · Post by **Mossy68** » Sun Apr 27, 14 10:11 pm

Didnt go the over axle route in the end then Johnny

Dave81 · Post by **Dave81** » Sun Apr 27, 14 10:12 pm

Bozwell wrote:
Dave81 wrote:though i've been converted (in taste) from X pipe to individual pipes (sound preference for me)!

:
Cross over pipe explained

Understand the difference and have done a load of research back in the old days, scavenging, pulses, backpressure etc. As JD says its all personal pref. Quite like the dual non crossover setup i have on my car currently. Sounds very different to H or X setups for the reasons explained.

Johnny Dart · Post by **Johnny Dart** » Sun Apr 27, 14 10:28 pm

Mossy68 wrote:Didnt go the over axle route in the end then Johnny

I still want to , but I couldn't get 2 Jetex over axle pipes in 2 1/2 inch bore.
I contacted the seller, and they had no lead time.
So I thought I would stick with the side exit, but do it properly, and I can always take off the side exit at the clamp ,and make up the 2 over axle bits later on