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Perhaps someone on this forum can explain how any multi vehicle can work in many different transmissions given that different transmissions operate at different pressures, temps and have different clutch pack materials. The programs are also not the same. We know that a manufacturer of an...

Changing fluid on a neglected transmission will NOT cause issues with transmission operation. However, carrying out a flush or other forms of cleaning will dislodge particles and may well block or reduce fluid flow in the valve body. Try to apply common sense to this issue. When you drain the...

In Australia there are mandatory standards for jacks, axle stands, and car ramps and America also has similar standards. My question is why not buy jacks, axle stands and car ramps that comply with the standards, in Australia there have been deaths and injuries using non-compliant equipment...

Never run the vehicle on open circuit (battery terminal disconnected) as this will do serious damage to the alternator. In the absence of an oscilloscope, connect a multimeter across the battery terminals using the AC voltage range and not the DC range. Start the engine with the headlights on...

Bosh alternators are generally very good with spare parts easy to obtain. The only issue with older Bosch alternators was the rotor to slip ring connections breaking.

If the oil, you are using meets rather than recommended or suitable for then I see so issue using any well-known brand of oil. In my view specifications from the vehicle manufacturer should be your go to guide for the specifications

This may help with the alternator voltage reading as it depends on temperature, for example Vidi Volvo software states a voltage of 14.95 volts at 10 degrees centigrade and the workshop manual states 13.6 to 14.8.

14.8v will not cause a battery to boil, all batteries gas of during charging but 14,8v will increase the amount of gassing. Back in the day batteries had removal tops to allow the corrosive gas to escape thus increasing rust in the surrounding area. We now have (so called) maintenance free...

What model/year Volvo. Can you post a photo of the alternator. The warning light requires equal voltage on both sides of the warning light to go off. Perhaps this is a wiring issue, 14.7 volts is what should be expected some older generators produced between 14.8 to 15.4volts without any...

Before trying to loosen a nut with torque wrench I would determine the torque on the tightened nut by using the torque wrench on the nut with the torque wrench set to ¾ of it torque range. If the torque wrench does not click, then I would not use the torque to undo the nut. The real question...

What is the point of soldering a terminal after being crimped using the correct crimper, is it due to lack of trust in one’s own work or perhaps using incorrect terminals and crimpers. Crimp terminals are not intended to be soldered and is usually performed by people with limited knowledge of...

All qualified electrical trades people are trained to use the correct crimpers and terminals, the issue with some diy people is a not reading the supplied instructions for the crimper and terminals or using super cheap items. If new to crimping I suggest going to AMP and other web sites...

Using the correct certified crimpers and terminals will not result in failure. The aircraft industry uses crimps for most connections. Crimped splice terminals are used in the industry with zero issues. DIY ratchet crimpers and terminals from well-known companies can be purchased for a...

In Australia all ramps,jacks and axle stands must comply with Australian standards. Home made vehicle supports are not permitted. Many people are injured every year by incorrect use of approved ramps,jacks and axle stands and using home made supports.What engineering qualifications do people...

Perhaps we ar talking about different things. Please read this. Why are Protection Devices used in a Relay? Relays can produce a large voltage spike when they are switched off due to the coil de-energising. Resistors or diodes are sometimes fitted across the coil of the relay to stop/reduce...

You mean any dc circuit and not an ac circuit. In a dc circuit a diode will as stated be very usefull and is widely used .

If you are not going to incorrectly reverse the battery connections or remove a battery terminal when the engine is running, then there should be no need for a protection diode. Protection diodes where fitted many years ago when people used to disconnect the battery cable to see if the...

Reverse polarity protection

Run 5W30 synthetic as stated in above post. Most vehicles in Australia use 5w30 all year round and copes well with a broad range of temps. Choose any well known oil brand of your choice.