m&mv80

sorry to bring this up again but is it posible to weld half a chain link to the centre of the drum without stripping the winch down, i dont want to melt anything and dont have time to remove the winch and strip it down before the weekend, thanks martin

thanks chaps, ill have a go at adjusting the prv at the weekend, looks like the ocv is set correcty then as im getting the exact same pressures as you have listed when off load, at last it looks like i might be getting somewhere, just got to go and get stuck now regards martin

what ones are you using at the axle end? im running rose jointed trailing arms and it seems to me that the amount of axle travel is causing to much twist in the bushes and now they need replacing im currently using genuine landrover ones as i was hoping they would be good enough but it seems not, would polybushes help? what are your opinions? thanks martin

here is mine, im running gwyn lewis shock mounts with rough country shocks supplied by david at lamma 4x4 (im v impressed with these) ive also got drilled bushes at the front which makes quite a difference and im running rose jointed rear arms and a qt a-frame rose joint, im not actually sure what the springs are but they are quite stiff (and orange ) and i will be changing for softer ones at some point soon oh and i have x-springs fitted on the rear as i prefer this idea than dislocating springs, im really impressed with this set up and i get a good amount of flex in my opinion, (just so you can see things in perspective they are 32 inch tyres) although im only using his shock mounts i agree with most of the comments above about gwyn lewis suspension may not look the prettiest but it works and it works well, as for road holding it handles ok on the road considering but as far as i can see you will always have a compromise, if you want good articulation you need softer suspension so you will loose some of the on road handling, just my opinion

ok to sum things up a bit, after my last post ive uprated from 3/8 to half inch spool valve and half inch pipe work as recommended by a few of you guys on here and thats sorted the excessive pressure problem so thank you all very much, right now i need to set my prv, whats the best method for doing this and how did you do it? also if i remember correctly bullbar cowboy said my ocv should have been pre set by alfred murray, how do i check this has been done and is working correctly? cant wait to go and try it out now

right, ive done a bit more digging on google tonight and it seems that a 2 D 40 marzocchi pump is about 27 lpm, although i stand to be corrected, one thing i dont understand though is why a 3/8 45 lpm valve block is not enough, im not disagreeing that i need a 1/2 inch spool valve and im def going to change to one with 1/2 inch hoses and 70 lpm, but im just curious as to why. thanks for all your help and info so far. bull bar cowboy: thats a great write up and install you have, mine is actually quite similar so its interesting to see how you have done it, thanks again guys regards martin

it should have number on it somewhere go hunty time and post up, I sadly have a load of data of versions and LPM etc just been to have a look and the only details i can see are on the back plate of the pump, it says: marzocchi bologna cast into it and then stamped on it has 394 and 2 d 40AC (i think, they are not stamped very clearly) are these the numbers?? ive just tried google and didnt get very far apart from the marzocchi usa site but the numbers dont seem to mean anything, hopefully you may know different. cheers martin

ian, first off thanks for your help, im using an ocv supplied by alfred murray 4x4 winches but i wasnt supplied any instructions, it just had top/front written on it by one of the ports, he said to plumb this port to the top/front port on the motor depending on what way the motor is fitted, mine has the ports facing the rad so i connected the identified port on the ocv to the top port on the motor, i believe this to be correct. again the spool valve came with no instructions so i cant give you the pressure drop, i bought it from harrier fluid power and was told it had a flow rate of 45lpm, all 4 ports are 3/8, sorry im not being much help here. you say the ocv may be set wrong, how do i adjust it?? im going to get the numbers off the pump and hopefully hybrid from hell may have some data about the flow rates etc so we might know some more then. i think a 1/2 inch spool valve and hoses is the way to go here, anyone know a cheap supplier of spool valves? also just to check, are the ports on the motor 1/2 inch bsp?? from memory the milemarker solonoid valve block wasnt a bsp thread so maybe the motor isnt either? thanks again for your help martin

thanks guys, ok so i have inch hose going from tank to pump then half inch hose from pump to spool valve, but now this is where i think the problem lies, i have a 3/8 spool valve (45lpm) and 3/8 hose from spool to ocv then ocv to motor, im guessing i need to upgrade this to 1/2 inch hose and a 1/2 inch spool valve, can you confirm this? i know i have the hoses on the correct way now because i didnt to start with, the other problem is that i dont know the output (lpm) of the pump although i believe it to be of a landrover mounted cherrypicker (i think its a superwinch pto), oh well more money to spend i guess, thanks again for your replys and any more info greatly recieved ps, to hybrid from hell, i believe it was you i spoke to at slab common on the shire play day about your (very nice) winch install on your 90

This is my first post so first off hi to everyone, I've been browsing the forum for ages and thought it was about time to join in, so here goes, I have a landrover 90 v8 and fitted a milemarker winch about a year ago running on a dedicated zf 74 pump, this works fine but was extremely slow as im sure most of you are aware. Basically I have now fitted a pto pump on the transfer box running through a manual spool valve and ocv then to the motor on the winch, I have just finished the plumbing tonight and tried it for the first time, Well it has certainly sped things up a bit, but I was suprised to see what pressure the system was running at off load, In 4th gear at about 1200rpm the guage was showing around 1100psi, is this correct?? It seems very high to me but im not sure if the ocv would cause this or if I need to adjust anything to reduce this off load pressure, I was hoping that the guage was going to give me some idea of load when using the winch in anger but if its running that high off load then its not going to tell me very much at all, also whats the best way of setting the relief valve?. I have heard by locking the winch mechanicaly by selecting both gears together you can bend something??, is this true and should i just rig up between to big trees or is it ok to do this? I know a few of you guys on here are pretty clued up on hydro set ups so im hoping I'll get some answers, I'm an engineer myself but have never been involved in hydraulics so im on a bit of a learning curve here, thanks in advance for your replys, Cheers Martin