FYI, Gripper now also recommend Millers CRX LS 75w90 NT as an alternative to Lodexol 80w140.
Best to read Millers blurb rather than Opie.description on opieoils.co.uk says not suitable for synchromesh boxes
Yeah the selector boot on mine pops off too. U just stretch the flat rubber edge over the lip of the gearbox selectors hole. Bit fiddly.By the way im not very clued up on gearboxes but while i was under the car refitting my exhaust you know the gear selector arm (gearbox side) where theres a rubber boot protecting the rod. Mines has popped off and the oil seal which i think holds it in place wont push right back. Is that a big job to replace? Aswell as the input shaft bearing?
It's not about warranty, it's about the item that was supplied being 'fit for purpose' which it is clearly not. Check your rights as a customer and don't take any #### excuses. You could always drop the 'trading standards' bomb if they don't play ball. You are in the right Paul, no doubt about itI agree Stani & Ed that it should be fixed free of charge cos Gripper stated that all their LSD from 2011 comes with lifetime warranty but I have a cloud of doubt cos I've been stung with paying the full price to fix it back in 2012 when I thought john said it'd be free.
Think the excuse was cos my diff and the original failed disc spring was technically an older pre-2011 design and I also requested changing ramps, it wasn't covered.
Charged me £65 to rebuild, £25 change ramps, £10 postage and £20 vat.
But then after supposedly fixing n upgrading the disc spring to a newer type in 2012, surely it should really be under the lifetime warranty now?
If they say yeah they'll fix/replace it for free and I get surprise stung again then that breaks the T&C, my trust and will prob have to abandon the diff cos it'd simply be unreliable and uneconomically sustainable.
have loadsa Q's and all this legal stuff is a minefield but indeed the original and the replacement disc spring were clearly not fit for purpose.It's not about warranty, it's about the item that was supplied being 'fit for purpose' which it is clearly not. Check your rights as a customer and don't take any #### excuses. You could always drop the 'trading standards' bomb if they don't play ball. You are in the right Paul, no doubt about it
the "guaranty within 12mth of invoice" means bollucks that just cos I'm not able to disassemble my daily gearbox every month like a racing team and spot the issue on time they just slap a big fine on me for being too late.14. DEFECTIVE GOODS: Subject as mentioned below the Company guarantees that all reasonable care will be taken to ensure good quality of both material and workmanship and that in the event of any defect arising within 12 months from the date of invoice (or as agreed in writing) will repair or replace goods free of charge provided that:-
(i) That goods are returned "Carriage Paid" to the Company's works and
(ii) It is proved to the Company's satisfaction that the defect is due to faulty material or workmanship.
This obligation to repair or replace defective goods shall be the full extent of the Company's liability under the above guarantee and the Company shall not be liable for any further or other claim in respect of loss, damage, injury or expense of whatever nature arising in any way from or out of any goods sold by the Company.
Ok thanks for thatYeah the selector boot on mine pops off too. U just stretch the flat rubber edge over the lip of the gearbox selectors hole. Bit fiddly.
I think the rods seal is press fitted onto the gearbox casing? Vague memory.
Taking the rod out involves removing the casing, and punching out the two dual split pins locking the rod to the selector head (used some square cut nails as drift punches)
try different ramp angles?, made no difference to the reliability issue.it looks to me like there is just too much preload paul, cant you run with a more open diff ? (less ramp)
Can't soften the ramps cos thats all they offer but i'll see if they can reduce the preload with less packing or stiffen the disc spring ratingno, softer ramps/less preload paul, so that that diaphragm spring is,nt being stressed so much
Hmm that's a point bout the stacking. I've read on someones thread bout replacing the beville ring with more clutch discs to mainly increase Lsd braking but it also eliminates the weak spring.i meant shave some off the top of the ramps mate, or like you say, set a lower preload
we have a similar problem with our kart multiplate wet clutches, where the baskets are now very worn, and i have to fit an extra friction plate into the basket to take up the slack
agree. similar to software bugs, this is Grippers responsibility to assess the failure and update/upgrade the product/goods to meet their original requirement claims. I'm just the customer who purchased their goods in agreement that their spec claims are suitable for my needs (ie checking it could handle 160ftlb) yet I have a sorta Beta version of the item.Resorting to changing the ramp angles is robbing Peter to pay Paul surely? (excuse the reference Paul )
The failure mode needs to be understood and appropriate corrective action taken by Gripper to resolve the issue.
If I wasn't selling my gearbox, I'd be tempted to open mine up for an inspection to see the condition.
Taking a Dremel to an £800 LSD? That's golden signature material right there Frankget that dremel out paul they,re only gonna fit another diaphragm spring (probably foc) and you,ll be back to square one in 6 months time.
you will end up with a slightly more open (and reliable) diff imo
um no frank, making the ramp steeper requires adding material (which requires replacing or making a new ramp driver) so the pin exerts less "wedge" action towards the preload disc spring, but as I mentioned before I did use a steeper 45deg ramp with less wedge effect but still the same problem.get that dremel out paul they,re only gonna fit another diaphragm spring (probably foc) and you,ll be back to square one in 6 months time.
you will end up with a slightly more open (and reliable) diff imo
Too easy.um no frank, making the ramp steeper requires adding material (which requires replacing or making a new ramp driver) so the pin exerts less "wedge" action towards the preload disc spring, but as I mentioned before I did use a steeper 45deg ramp with less wedge effect but still the same problem.
manually dremeling the ramp to a shallower angle by removing material will:
increase the wedge action = force against spring = likely to break,
invalidate lifetime warranty = permanent expensive paperweight
create uneven engagement - The ramps are precision made so a rough inconsistent ramp will cause unpredictable behavior & likely failure of the cross pins.
this diff product is an expensive valuable investment to me with a lifetime warranty cover and I'd rather let the specialists spend their time n money fixing it properly for me free (like a new car warranty) than to treat it like a disposable pound shop item.
its not a £800 paperweight yet, the ramp action still operates fine, it's just lost a portion of its preload (only 1/4 of the rings broken).
so once the spring is replaced hopefully with a stronger rating but shimmed to the same original preload, it'll be back to normal with a more reliable unit.
better to fix a problem immediately at its source than to fudge a bandaid and end up costing you more in the long run.
Ah very good result Good stuff, was worried about my purchase of a gripper.ok I called john at Gripper bout the failure.
the batch of preload springs from 2011 are the same ones used throughout their product range from low power rally coopers to 500bhp monsters and non of them had ever had this sorta failure so he'll be interested in what the cause was.
He needs the whole diff unit sent back so they can investigate exactly what part of the diff has caused the failure, fix it and then send it back. he's sending the postman to pick it up tomorrow so I don't have to sort out postage.
we clarified that it'll be free of charge and I requested that he emails me the estimate as proof.
try jack up one of the front wheels at a time and spin it my hand.Good to see John on side with you Paul. Will be interesting to see if they can find the root of the issue.
Depending on the situation, I may very well open up this LSD to see if anything is afoot too. There's nothing performance wise to suggest that there is, but given your unfortunate situation it maybe pertinent to do so.
It's the standard 45/45 setup with integral speedo ring Paul, it works very well and there is plenty of pre-load there. It's curiosity more than anything and also due to some mild apprehension from the buyer. It would also be easier for me to see something through with Gripper, should there be any issues, since I am the original purchaser.try jack up one of the front wheels at a time and spin it my hand.
if its a 2-way, u should feel it lock up n resist turning both ways.
if its a 1.5-way, it should lockup/resist turning one direction more than the other.
the lockup action on mine will be more sensitive on one side than the other wheel due to the asymmetric clutch pack setup to fit the speedo gear.
if the lockup/resistance feels very low or zero like mine currently, then the preload ring might be worth checking.
yeah their website is very prehistoric with no spec info at best.It's the standard 45/45 setup with integral speedo ring Paul, it works very well and there is plenty of pre-load there. It's curiosity more than anything and also due to some mild apprehension from the buyer. It would also be easier for me to see something through with Gripper, should there be any issues, since I am the original purchaser.
I must admit, Gripper have pretty poor literature on their site in general. In one instance they state 'current ramp angles available are 30/65, 40/65 and 45/45'. However within their 2013 price list they state 'the most popular ramp angle is 30/65, 40/65 and 45/45, others if required.' So, technically, there are infinite possibilities when it comes to setups.
You must be in a good postal code Paul. My quote was a tad more and on less power. Still a long way from the £245 I pay now though through Chauser.sky renewal letter quoted £572 (last year was £597) but their price guarantee says they'll refund the difference if anyone's cheaper.
rang around and adrian flux did £520 and could also offer breakdown extra £54, injury £15 and key cover £15 (won't need any of that)
rang back Sky and Clive could match that price, sorted. couldn't do breakdown cos it's above 15yrs but meh.
If it don't exist then you can't complain about it lolBeen over a week now and not heard back. Emailed john yesterday and still nothing.
Very poor customer service Gripper, not informing me what's going on, broken promises, dunno if they've just nicked me diff & ran.