Porks bike carbs and boost project

[pork]

Shaft and cv complete, both sides

There's no movement when jacked up at all

 

[h701micra]

Shaft and cv complete, both sides

There's no movement when jacked up at all

Rumbling from both sides when turning or just one?

 

[pork]

Bit of both really

 

[h701micra]

Bit of both really

Checked the driveshaft angle etc on lock?
(Should be ok but you never know)

 

[pork]

Seems ok, what should I look for?

 

[pork]

Seems ok, what should I look for?

 

[h701micra]

Check the boot to see if the bearing is still in the cv cap etc. Some "new" parts aren't always perfect

Spin the wheels and see if you can hear anything out of the ordinary

Checl the cv grease if you haven't already may need a tad more.

Coming from both sides suggests driveshafts to me

 

[pork]

I've put car on full lock, grabbed the shaft (no comments lol) and I can pull it from the gearbox and it does move a bit (both sides)

Should there be some movement there?

 

[h701micra]

I've put car on full lock, grabbed the shaft (no comments lol) and I can pull it from the gearbox and it does move a bit (both sides)

Should there be some movement there?

Yup to take up the movement of the wheel as it goes up and down... when on the ground is there any movement?

 

[pork]

That was on the ground

 

[h701micra]

Should be ok then :/

 

[frank]

sounds like the shafts are binding neil (we covered this before iirc) the lowz and the different wishbone balljoint positions ?

 

[pork]

sounds like the shafts are binding neil (we covered this before iirc) the lowz and the different wishbone balljoint positions ?

I checked what you said last time, jack car up and see if engine moves over, doesn't budge

Raise ride height? Lengthen wishbones?

 

[h701micra]

sounds like the shafts are binding neil (we covered this before iirc) the lowz and the different wishbone balljoint positions ?

That's what I was getting at... just describing how to find it

 

[frank]

the shafts will bind more on lock too eh neil, jack the balljoints up and run it in gear/off the gound, lock to lock (you will probably see the engine straining left and right)

 

[pork]

Il give that a go


I wanna keep the lows

If I was to extend the wishbones, what's safest way to do it?, don't wanna lose any strength!

 

[h701micra]

Il give that a go


I wanna keep the lows

If I was to extend the wishbones, what's safest way to do it?, don't wanna lose any strength!

Are you using K11 ones?
If so back to K10 ones with the hybrid balljoint

 

[pork]

I just tried franks idea, felt fine, no change in engine tone, didn't struggle


But I was only in first gear, the rumbky feeling happens above 20 mph (should of said earlier)

 

[frank]

i would try it in top gear personally neil

 

[Enuo]

Does changing up get rid of the feeling?

 

[pork]

Lol, ok il try that tomorrow now, cars of the jacks and back on drive

 

[pork]

Does changing up get rid of the feeling?

Whilst driving? It's the same in any gear whilst driving

 

[Enuo]

I bet it's a flatspot on your tyres where it's been stationary so long...

 

[pork]

I bet it's a flatspot on your tyres where it's been stationary so long...

I've been ragging it about for a while now mate lol, it's fine in a straight line

Apart from its leaning out at top of rev range, I don't have an air filter on it yet though lol

 

[pork]

So, if I want to keep lows options are

1- lengthen wishbone
2- shorten driveshafts
3-k10 wishbones with modded ball joints
4-raise engine up to straighten angle of shafts


Which is better option?

I mean is the shaft binding coz of the angle of the shafts? If so then option 4 is best bet, right?

 

[jamier2007]

Mine has a wobble when steering and I have k10 arms with k11 balljoints. Although I never looked into the problem

 

[pork]

Mine has a wobble when steering and I have k10 arms with k11 balljoints. Although I never looked into the problem

Is yours lowered right down to?

 

[jamier2007]

Not particularly. Its 50mm lowering springs iirc.

 

[pork]

Not particularly. Its 50mm lowering springs iirc.

Yours is cg10, k10 g/box , k11 hubs?

 

[jamier2007]

Yeh. Its the ma12 box. Although I dont suppose that makes any difference. And I use the K10 shafts

 

[pork]

I've got pre facelift cg10 k11 shafts, but they are all meant to be the same I think

 

[pork]

So, if I want to keep lows options are

1- lengthen wishbone
2- shorten driveshafts
3-k10 wishbones with modded ball joints
4-raise engine up to straighten angle of shafts


Which is better option?

I mean is the shaft binding coz of the angle of the shafts? If so then option 4 is best bet, right?

My driver side mount is adjustable, so it'll jus involve gear box and rear mount

 

[h701micra]

If you can raise the gearbox that'll help

 

[pork]

If I have some lateral movement of shaft as it is now, it's gotta be the angle that's causing the bind

So raising up engine should straighten the angle and cure problem..........or am I confusing myself

 

[h701micra]

You've got it right... but raising the gearbox not engine

 

[pork]

Yeah, both will all have to be raised up, to keep it all level, beings gearbox is bolted to engine

 

[h701micra]

At least I hope it is

 

[pork]

That does help

 

[pork]

Looking at it again, the driveshafts aren't at any stupid angle at all

It's gotta be the shortend wishbones then that's squashing in the shafts

Il take pic later, if you look at the rubber boots near g/box they look all bunched up

Why would I only feel the binding/juddering whilst cornering though if this is the problem?


If I shortened the shafts by 20mm (10mm to account for shorter wishbones, and 10mm for the added lows) would this be enough?

 

[frank]

you can probably slide the spider,s further down the shaft neil, rather than cut-n-shut

 

[pork]

How's that mate ?

Again, this is another part I've never played with

 

[frank]

the inboard spider mate, it locates on a circlip, if you remove them and bladder it further dow the spline it,ll shorten the assy 10mm or so

 

[pork]

Is that the gearbox side?

 

[frank]

yeh, inboard ^

 

[pork]

Nice one mate, il look into that

 

[frank]

Nice one mate, il look into that

you will probably need to trim the excess off, but leave a couple of mm to peen the end over to keep it captive eh (or a couple of weld tacks)

 

[pork]

Here's pic of near side , gearbox side of driveshaft

That's gotta be the issur

 

[h701micra]

When you turn one edge moves closer so that'll be your issue
I'd lengthen the wishbones personally

 

[pork]

Had a spare hour today in between Xmas shopping. :-/

Raised the ride height.......loads better when turning now....... But looks ****, at least I can use it more now

It's been leaning out at top if revs on boost, so fitted a bad boy halfrauds rip speed air filter (only one I could get at short notice)

And also moved the needles one clip up..... Loads better now !!!

 

[pork]

Dam arch gap !!!!

Air filter fitted with scrap bits of hose and section of old exhaust lol