dsvitesse1

Hi, I have so many brand new OEM/HML or very good used primary- and input shafts in stock imho it will be a waste of time to investigate. Btw, if you consider the difficulties producing a nice, with perfect ratio 4.25, cwp you can imagine making a primary shaft is even more complex. Cheers, Harry Martens. ps, install the input shaft with good quality copper grease and the HML upgraded circlip you will have a life time warranty. Yours or mine offcourse:D

Now it should be ok. New primary shaft Lotus Esprit with Citroen gearbox.

tnx. got it

HI, there must be something wrong. Max total size of images is only 1,48 kb. How small is that? cheers, Harry

Good to hear it all worked out. Just in case a good used primary shaft is no longer available I have some brand new shafts in stock! cheers, Harry Martens. Would like to add some pictures but system does not allow me. 1.48 kB is very small:)

Ring and pinion sets are in stock!!! Perfect, no funny, ratio 4,25. 100% feedback. Get yours, nice combination deals with a Quaife ATB differential. https://www.facebook.com/harrymartenslimmen/posts/pfbid0UTzh9m6AbZ2YEiaTq4QonQhVTiJicwTUXWqegrifKR6cYmgLAxoHzPxAiZt6Te5bl?notif_id=1703154781731645&notif_t=feedback_reaction_generic&ref=notif cheers, all the best wishes for Xmas and 2024.

The diffs arrived last week. Next week the new batch cwp will be ready!!!

Hi, in October this year a new batch reversed crownwheel and pinion sets will be available. As allways, perfect ratio and fit. Around the same time there will be a batch standard Quaife ATB diffs and a limited batch special Quaife diffs. The new diff will be 26% “stiffer” compared to the standard unit, the torque bias ratio has increased from 1.63 to 2.04. The increased helix angle on the gears increases the force into the sun gear when the wheel slips, which increases the torque through the pinions and onto the opposite sun gear which will increase the force onto the road for the other wheel. This will also mean that the new diff is more responsive to any loss of traction compared to the standard model. This would be ideal for track. If you are interested, please drop a note. hml@ds-vitesse.com Cheers, Harry Martens Limmen

Hi, best option imho is to replace the OEM cwp for the HML reversed, with perfect ratio, crownwheel and pinion set before you end up like this. There can be severe damage to other gears, casing and bellhousing. Be carefull, be wise. https://www.facebook.com/photo?fbid=6615107505188508&set=pcb.6615107901855135 https://www.facebook.com/photo/?fbid=6615107591855166&set=pcb.6615107901855135 cheers,

try the other way first, a little bit clockwise. After that counter clockwise loose. It must come loose. You need to fasten the casing on something steady. cheers, Harry

Hi, maybe the input shaft circlip and needle bearingfailed failure. cheers, harry

HI, only 4 sets left from 4th batch!!! 5th batch coming soon. Perfect sets, ratio and materials. Cheers, Harry Martens Limmen Gearbox specialist Citroen DS/SM and Lotus Esprit Giugiaro.

HI here is one of those imitation pinion bearing. https://www.facebook.com/harry.martens.7/posts/pfbid02ENZXABTjwqGw1bCC3AuUTgxJysz7J8R3n7XDTSdSzLbcRmwjYqw1yDZmJ6ehHJNZl?notif_id=1653557486312733&notif_t=feedback_reaction_generic&ref=notif beware. cheers, Harry

Hello, here is a link to more pictures. This time Esprit Turbo C 35 rebuild. https://www.facebook.com/media/set/?vanity=harry.martens.7&set=a.5474133822619221 enjoy!! cheers, Harry

Here is some back ground information about the materials, design and quality HML ring and pinion sets. HML uses 18CrNiMo7-6 for those sets, which is the standard for hardened sets. The type of tooth is. Gleason, compared to Klingelnberg, has the disadvantage that Gleason has a smaller tooth foot radius and therefore succumbs faster to tooth fracture. In addition, the geometry over the tooth length at Gleason is a "circular arc". At Klingelnberg this is an "Epicycloid", which makes the Klingelnberg system less susceptible to installation errors and house deformation under load. If you are going to calculate with equivalent sets: Klingelnberg vs Gleason, Klingelnberg will be the strongest choice according to the calculation modules. About the transmission ratio. The cars with a 7-31 ratio will accelerate faster and you will lose your top speed. At the same speed, the car will also go higher in revs, which is less comfortable. cheers, Harry