| Author | Message | ||
     Robert Chapman Experienced User Username: shadow Post Number: 10 Registered: 5-2003 |
Have you checked your one shot system lately?  | ||
| John Dare Unregistered guest Posted From: 144.138.194.201 |
After MUCH agonising I have decided (for the moment anyway!) to retain the "Bijur" as opposed to changing to grease nipples, despite my unequivocal acknowledgement of some of the benefits of the latter. My "R" type (B10TN) has what is almost a "factory" like air cond.unit, fitted (by prev.owner) and this tends to obstruct ankle/foot approach to the underdash foot pump. I suppose I could remove the pedal "arm" and form a slight "offset" in it, but I thought (at the risk of being castigated) that perhaps the "Bijur" could be "driven" by a small(concealed) elec.pump, rather like I recall seeing deployed in a "B60" engine "pre-lube" main engine oil system. This might have been featured in the RROC(USA) "Flying Lady" magazine?. Not wishing to appear lazy here (fear I am becoming more so though!) nor wanting to redesign the wheel or create complexity for the sake of. Just a thought to perhaps invite some helpful input as to the "concept" itself. Thanks in anticipation. (Message approved by david_gore) | ||
| KC Saayman Experienced User Username: kc_saayman Post Number: 7 Registered: 10-2004 |
What is the correct oil for the one-shot system Regards KC | ||
| Bill Coburn Grand Master Username: bill_coburn Post Number: 264 Registered: 4-2003 |
Answers to both. For KC. 90 viscosity is what is used in these systems. The handbook will tell you engine oil but this was difficult to retain and the thicker oil 'clings' to the bits better. For JD. As well as your redesigned pedal you could consider a prehensile foot. I have developed 5 jointed fingers for some of the jobs I have taken on with these cars and am quite sure I can scratch my uvula via a nostril!!! That aside I clearly remember the Luvax Bijur system used on late prewar and early postwar cars (Rover was one) which employed a vacuum operated pump that was mounted on top of the oil reservoir. It appeared to be identical with the vacuum washer pumps used on your R type. Their performance would undoubtedly need watching. For everyone. When I had my Dawn I used a rig to test the one shot system. I acquired an expired gas cylinder from the local barbecue shop. The valve was removed and a tap with a snorkel that went to the bottom of the vessel was screwed into the top. Provision was made to pump in compressed air via a regulator which was on the compresser. I originally made this up to test the lubrication system on overhauled engines. It is fascinating to connect the line into the engine fill the vessel with engine oil and then turn the crankshaft and watch where oil comes from and how much. You can also easily check the pressure relief valve. Anyway I hooked the thing up to the main Bijur line and bypassed the reservoir. The ensuing mess was quite edifying but most importantly it showed up the starving points. | ||
| Ashley James Unregistered guest Posted From: 62.255.0.5 |
EP90 was recommended by R-R after consultation with Fleet companies operating cars over large mileages. This was in '62. 4 pumps in quick succession every 200 miles to get rid of air and get to most distant point which is rear right hand shackle pin. Most do not pump enough because of the mess it causes at the front end but you need to if you do not want to have to replace the rear shackle pins. I've had no problem with excessive oil on clutch despite pumping far more than this. I stress that this is an R-R recomendation not mine. (Message approved by david_gore) | ||
| RoyTilley Unregistered guest Posted From: 222.152.94.173 |
An alternative 'automatic' system was used by Daimler post-war on Consorts, Conquests etc and consisted of an expansion chamber in the oil line, fitted close to the exhaust down-pipe. It had one-way valves top and bottom and therefore whenever the engine heated up the expansion chamber i.e. on startup, a small amount of oil was squirted through the system. When it cooled down, on shutdown, it sucked oil from the reservoir into the expansion chamber, ready for the next power up. A fine system in theory but it failed if the reservoir was allowed to empty when air would enter the expansion chamber and lubrication would cease, the front suspension would wear and life became generally miserable. I've never owned one so would someone please tell me if the foot-operated Bijur is also sensitive to low oil levels or does the pump overcome ingested air after the reservoir is refilled? And David, re your earlier signal, I have emailed your admin people for a new password but have yet to hear from them. Regards Roy Tilley, NZRR&BC (Message approved by david_gore) | ||
| Martin different name Unregistered guest Posted From: 211.30.117.65 |
Hi, When the oil level gets low, the foot operated pump gets very light, ie, pumping air. You fill up the oil again and pump until the pedal gets hard again, simple! (Message approved by david_gore) |
