Graham Posted May 22, 2017 Report Share Posted May 22, 2017 And this morning question is does anybody know if there is a 'typical' oil feed requirement for the Vacuum pump alternators fitted to a lot of diesel cars. I'm assuming that its specified as ML/Hour at X Bar but I don't know. BTW ever since Johns post in 'At the Bar' re 'So" I never realised I'm probably one of the chief protagonists ! must do better Quote Link to post Share on other sites
TriumphV8 Posted May 22, 2017 Report Share Posted May 22, 2017 I used the additional rocker oil feed and reduced it with a jet in 0.8mm. The pumped air must be feed back to the engine because there is the oil! I made a AN-8 feed to the blocking plate for the fuel pump. Nice place to get rid of that stuff. Result is brilliant with a 280 degree or wilder cam. Not that progress with the 256 cam or Newman PH-1 Quote Link to post Share on other sites
Graham Posted May 22, 2017 Author Report Share Posted May 22, 2017 I used the additional rocker oil feed and reduced it with a jet in 0.8mm. The pumped air must be feed back to the engine because there is the oil! I made a AN-8 feed to the blocking plate for the fuel pump. Nice place to get rid of that stuff. Result is brilliant with a 280 degree or wilder cam. Not that progress with the 256 cam or Newman PH-1 I can see the reason for returning the pumped air to the block if it has oil in it but does't that then lead to crankcase pressurisation issues ? Quote Link to post Share on other sites
TriumphV8 Posted May 22, 2017 Report Share Posted May 22, 2017 The breather will let the air go. Only when brake pedal is pressed some air is sucked and led to the crankcase. Nothing to worry about. Quote Link to post Share on other sites
Graham Posted May 22, 2017 Author Report Share Posted May 22, 2017 The breather will let the air go. Only when brake pedal is pressed some air is sucked and led to the crankcase. Nothing to worry about. If you ignore the electrical side of things then, do you have 4 connections to the pump, oil to the pump, oil return to the sump, vacuum to the servo and air to the sump ? do you have a plumbing diagram ? Quote Link to post Share on other sites
Graham Posted May 22, 2017 Author Report Share Posted May 22, 2017 Just nicked this list of a Land Rover site but apparently these cars have alternators that have vacuum pumps that don't need an oil feed Ford transit K - W reg isuzu trooper daihatsu fourtrack ( these also have a power steering pump built in ) bedford midi van peugeot partner van and citroen berlingo chrysler neon and some voyagers ford escrot 1.8 diesel van MK5 ford mondeo 1.8 petrol MK1 bedford rascal suzuki carry or super carry van ( the sooty vans ) Quote Link to post Share on other sites
TriumphV8 Posted May 22, 2017 Report Share Posted May 22, 2017 If you ignore the electrical side of things then, do you have 4 connections to the pump, oil to the pump, oil return to the sump, vacuum to the servo and air to the sump ? do you have a plumbing diagram ? Oil to the pump by the additional rocker oil feed reduced with 0.8mm jet Air to the pump from brake booster to pump inlet. Pump outlet has oil and air mixed up and guides with 12mm fuel hose directly to the fuel pump blanking plate at engine side. Easy done, more work is to use these nice AN connectors in red and blue and adapt them to the threads at the pump..... Quote Link to post Share on other sites
Graham Posted May 23, 2017 Author Report Share Posted May 23, 2017 This has me intrigued http://www.ebay.co.uk/itm/BRAKE-BOOSTER-SERVO-AIR-VACUUM-PUMP-Jaguar-X-Type-2001-2003-/271995805226?_trksid=p2385738.m2548.l4275thinking possibly of one of these wired via a relay to the brake light circuit, I have seen similar on the Car Builders Solution site, but the one they sell they offer a 'health warning' that its very noisy in operation. Being as this one is from a Jag guess it would be a bit quieter. Having said all of this I'm solving a problem I don't have at the moment as the car is still in bits ! Quote Link to post Share on other sites
TriumphV8 Posted May 23, 2017 Report Share Posted May 23, 2017 That might kill you! (Not really but its bad) If the booster will only be sucked if you brake you will get a delay untill full vaccuum is in the booster. The oil trouble is a bit more work but it looks nice when finished, is reliable, cheap and the pump is properly fitted to the engine in a suitable position. All in all the amount of problems -like mostly- will be on the same level although the electrical pump works good, too. Quote Link to post Share on other sites
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