Driveshaft issue - fix

[inark]

I cant remember the thread which this was in but it must be a pretty common issue in these things that have any decent amount of power. Generally the straighter the better otherwise it can cause more stress on the parts and brackets involved. The cefiro drivetrain isnt quite straight which u cant really tell from the pic below cause i had already taken the prop shaft out and had my bro in law weld in some new home made sections out of some pretty heavy duty metal washers and nuts.

In this pic (below) you can see one of the 2 main bolts that bolts up into the section pictured above... it had ripped out the entire section of metal that it bolted into and at the top of the circled red section you can see that one is missing... because it sheered the bolt off completely.

[C_DawG]

What did you use for the bosses? Threaded plate?

BTW. Thats a tail shaft

[inark]

yeah that thing lol

bosses im guessing (you have to remember im not a mechanic and dont know shit about this sort of thing lol altho im sure u guessed) you mean the part the bolts screw into?

a thick set of nuts which we welded onto a thick washer and cut to fit... much stronger than what was originally there.

[C_DawG]

you mean the part the bolts screw into?

Yeah, 10 points for the definition

Looks like something definatly worth doing when I change donk and rear cradle.

[inark]

woohoo i have 10 points!!

are they like fly buys?

well if your puting out some good power and if ur going to be under there anyway its definately something to look into.

[someonestolecc]

Thanks nark for the pics. That makes a lot more sense now.

Atleast I know what to point out to the guys at cromer exhaust. This sounds like something I would like to do.

I managed to drop my tailshaft about 3-4 times in my XW. It's not a pretty good sound to hear that thing flopping around bouncing between your car and the ground while you lose power :boohoo:

[inark]

no especially not in a ceffy cause it pops up and hits u right in ur arse lol... i had to limp the car home about 1.5ks from where i did it cause i couldnt get a towie in time...

man i was shittin bricks when we were trying to get it home...

[someonestolecc]

Yeah I hear ya man not a pleasant feeling at all.

How'd ya limp it? Half still stuck in I assume?

[inark]

it was hanging down and still connected as you can see in the bottom pic... limped half way home then got towed by my bro in laws jeep at 20kmh everytime it made that noise i cringed waiting for something worse to happen.

[sky80]

must be an unpleasent feeling to be shitting bricks...talk about constipation....milanta aint gonna help nothing...

Yeah I hear ya man not a pleasant feeling at all.

How'd ya limp it? Half still stuck in I assume?

[inark]

lol sky80

this might be something u wanna look at strengthening too... these parts werent made for the huge amounts of torque put out by the RB26

[someonestolecc]

hey nark.

question - you reckon my car would require this? aiming for approx 230rwkw.

[inark]

dont see any stress marks...

should be ok... just dont go giving it too many hard launches

just make sure when it does happen that u fix it properly.... find a good welder.

[someonestolecc]

hehe no hard launches? c'mon

and WHEN it breaks - im hoping for it NOT to break

I might go back and get it done.