New answers tagged

0

A quick net search suggest fatigue or high temperature/melting. All the bearings would need to be examined with magnification to do a real analysis. Part of the problem is that is a severe failure; the original failure may induce other types of failures. Apparently those are babbitt rather than the typical trimetal because no bronze is showing. Babbitt loses ...


0

SOLVED!! the power steering air control valve connects to two vacuum hoses, both these hoses where completely de-attached and trust me. you can NEVER notice them as the valve is well hidden deep down behind the power steering lines. Can't imagine that the mechanic didn't notice that while changing my injectors and intake gasket. Now finally my STFT/LTFT are ...


1

The fact that the oxygen sensors are reading low at idle, but the reading increases when the revs are increased, would indicate a small air leak that becomes less significant as the throttle is opened. This is also backed up by the error only appearing at idle and not while driving. Air leaks can be fairly well hidden, there could be an air leak for example ...


1

Yes, there are two radiators. The first one closest to the front of the vehicle so it gets the coolest air is the air-to-air intercooler to reduce the tempersture of the compressed air from the turbo going to the engine. Second will be the air-to-water radiator to keep the engine coolant cool. The can also be the AC condenser which is usually first on many ...


2

Are you actually having a misfire? If so, then assuming the car was otherwise properly maintained, the most likely culprit on these engines would be a failed ignition module. Those are under the plastic cover that has the "VOLVO" brand on it and is visible in the photograph you provided. Injectors are passive, low impedance components, and moisture ...


14

What you have circled are the connectors for the fuel injectors (and obviously the fuel injectors are underneath of them). They have seals which protect from moisture, dirt, and debris, so in most cases there's no chance of misfire due to them getting wet. IOW: The "wet" stays on the outside of the connection. There'd have to be serious ...


0

This is the behavior on many cars - the electronic choke, operates below a certain temperature to give a smooth idle. it is released as you start driving as well as the engine is warm. But blipping the throttle is another way of cancelling it which is what you are doing.


0

Potntial cause of a P0433 code could be a defective catalytic convertor. It is triggered by the upstream and downstream oxygen sensors indicted the same the data on oxygen concentration in the exhaust. Other causes include a exhaust leak before the catalytic convertor, misfires, defective oxygen sensors,MAP and MAF sensors. Another possility could be ...


2

Idling for a long time isn't ideal. But you haven't at this point in the process done anything catastrophic or anything close to it. Machining processes have dramatically improved over the last couple of decades. This is why we've seen break in procedures change over the years. Don't let this bother you, there is almost no chance that you did detrimental ...


0

If you're not getting compression on one side, I'd suggest part of the valve train has failed. The engine is a dual overhead cam (DOHC) setup. Each cylinder head's cams are actuated by a separate chain as well as the sprockets which contain the goodies for variable valve timing (VVT). If the chain on the one side or any part which actuates those cams has ...


0

Many people have experienced clogs in their fuel system, often the high pressure fuel filter. A simple remedy may be adding Yamalube Ring-Free Fuel Additive, 2 oz. per gallon, as a shock treatment to your fuel system and power head. A competitor called StarTron Ring Clean works similarly but even better, according to many Yamaha owners.


0

Since it's only happening in 1st gear it could be something to do with engine mounts or the rotating of the engine is hitting something. 1st gear puts the most stress on the engine mounts and drive axles.


0

Confusing? You ask if you should resurface the engine block, then cylinders, then head faces… Cylinders: if scored, they can be machined and honed or just honed if scoring is light. Heads will only need resurfacing if they are warped, so you need to measure with a straight edge. The valve guides and any bearings need checking / replacing as necessary. Block: ...


0

You should have the heads rebuilt as it highly likely that the lack of oil also caused damage there as well. While resurfacing may not be needed, the valve guides, cam followers, and camshafts may be damaged and need to be replaced.


0

I'm going to assume you had the harmonic balancer on the engine. If so, you'll need to rotate the engine and see if it is out of round. Check it to ensure the rubber has not been damaged which would hold the outer ring of the balancer in place. If it has, plan on replacing it. While you're spinning the engine, and the harmonic balancer appears to be out of ...


0

The usual cause of white/oily smoke on first startup is oil that has collected in the cylinder while the engine is stopped. There may be some burning while the engine is running but it's often less noticeable. Most common root cause is worn and leaking valve guides or seals. Oil is pulled from the cylinder head above the valve through the seal along the ...


0

Mannol 5w-20 oil is a synthetic oil for Europe but has ratings for around the world. Your owner's manual should specify which oil but if your cold weather temps are below -35C then consider 0w-20 for -40C operation.


4

According to this website, motor oil is incapable of freezing: Because motor oil does not crystallize, or solidify, at any temperature, it technically does not freeze. However, motor oil at freezing temperatures will begin to thicken, losing the viscosity that allows the oil to flow throughout and lubricate the engine. This increases the risk of damage to ...


Top 50 recent answers are included