spitfire6

Contact cleaner.

Hi & greetings, I am still running the short filter with no issues; the oil pressure switch is adjustable and set to illuminate when the oil is hot and I stall the engine to circa 500 RPM. I have all the sensors but they are still not fitted. Cheers, Iain.

Hi, It looks like silicone grease then. I have got loads. The inline pump is 3 Bar I believe. us/bit: MSPB is 35. WOT highest value is 182, I assume 255 is 100%. How does that sound? Cheers, Iain.

Hi. in the process of syncing the ITBs for the last time. My cam is a Plper "Ultimate Road". No wonder my MPG is poor. What can I use to lube the injectors so they push in easily? Vasaline don't work so good. The injectors are Denso/Ford 2W93-AA for JLR/ 4.2L 4.4L V8. Are the unbranded ones OK or should I stick with OEM? Does anybody know who/what RB245 stamped on the head and ITB means? What are yellow striped Valve springs? Cheers, Iain.

Hi, the PCB is AC-powered. The twin resistors are acting as volt-droppers for the DC relay. The cap & bridge are to convert the AC for use with the DC relay. The board is dead because you have two dry joints on the relay contacts; fix them with a soldering iron. Cheers, Iain. PS. The relay coil is 48VDC. The 1K resistors look stressed but are functional. It is just the two dry joints that are stopping it from working. Connect the two adjacent Lucas connectors together & it will work without the relay.

If you can afford Eneloop batteries, they are the best. It would be best if you used a compatible charger. Eneloop batteries will last over 2000 cycles. Something portable with no low battery indication & consumes nowt would push me to quality alkaline.

Hi, Not all electronic equipment is suitable for rechargeable battery. Some mention it in the manual. 1.2V vs 1.5V. A 1.5V rechargeable battery is available but the voltage is very, very flat until 99%; no warning before empty. Cheers, Iain.

Hi, I have used cooking oil in my clutch for over a year with no noticeable difference apart from fixing the leak. I have run baby lotion in the brakes so that I could drive home. I think brake fluid needs to have a very high viscosity index, hence engine oil is no good. DOT5 & ABS? I really don't know why not. Cheers, Iain.

Hi, When I had sensor grounding issues, my CLT and TPS had loads AC. I unplugged the main connector, and then, after replugging it for testing, the fault disappeared. All power and low-level grounds are connected correctly. I think the heater is 2.5 amps. Cheers, Iain.

Hi John, The trace is for a narrow-band sensor. Most aftermarket is Wide-band now. The hunting is a requirement of NB Sensors & is quite normal. Cheers, Iain.

Hi, Can you not just use two relays as you require 3 states? Cheers, Iain. PS. Field weakening to increase speed was how it was done in the old days. not very efficient. I would use a DC-DC boost converter to increase the armature voltage instead for high-speed operation as the armature current would be less and you could throw the resistor in the bin. PPS. Something like this: eBay item number:195759044419

Hi, my AEM black wire is power & small signal ground, as such it must be connected to a power ground and not an analogue/small signal ground. I'm surprised it did not have two ground wires. Cheers, Iain.

Hi, My AEM that replaced the LC-1 and then the LC2, sensor failed after about a year. I bought a new Lambda Sensor LSU 4.9 from AliExpress for around £25 over 4 years ago. It's still working fine. If/When it dies I will get another at that price. Cheers, Iain.

Hi Roger, That is a very inexpensive modern oil. High VI as well. As it's listed as a racing oil how often do you change it? Cheers, Iain.

Hi, is this the motorcycle oil? What oil pressure are you getting at 2000, hot? I'm surprised if it is leaking on good seals, maybe crankcase pressure? Cheers, Iain.