30 votes
Accepted

Why would a mechanic crank heater to maximum

If the cooling system is drained, it needs to be refilled and all air needs to be removed. The mechanic turns the heater on to allow coolant through the heater core to be sure all air is being removed....
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  • 2,692
26 votes
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Why do I need to turn my crankshaft after installing a timing belt?

Yes, it's absolutely necessary. As you state, the primary purpose is to check the timing. It is far better to do this by hand and ensure the timing is right rather than to start the engine without it ...
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18 votes

Timing belt change on a car about to be scrapped

The engine in your Renault is more than likely an interference engine. What this means is, if something were to happen to the belt, the engine will be history. This would leave you stranded, more than ...
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18 votes
Accepted

Timing belt change on a car about to be scrapped

The change interval is either 5 years or 120.000km, whatever is reached first. Except for engine codes K9K766 and K9K770, where the interval is 5 years or 160.000km. Now, the interval just "...
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  • 296
17 votes

Timing Belt need replacing? Unknown mileage

Unfortunately there is no magic eight ball which can tell you how many miles are on a timing belt. This is my own opinion, but I'm sure it's shared by most: If you don't know the mileage of a ...
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13 votes

Why would a water pump be run off of the timing belt?

I think the main reason for this is convenience. It's an easy place to run the water pump. If you ran it out to a fan belt, it would be in the way of the timing belt while doing it, or it would be a ...
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12 votes
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Strange noise from timing belt area

I don't know if I deserve all this credit. My idea was sound, but my measurements were pretty bad so my numbers are way off. If you try this, use the more precise software that Robert S. Barnes ended ...
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11 votes
Accepted

Why would a water pump be run off of the timing belt?

Engine safety. If you lose an accessory belt driven water pump, you're likely to keep driving, thinking the "oh, I just don't have an alternator" while you're busy cooking your engine beyond repair (...
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9 votes

Replacing Timing Belt - 2006 Honda Odyssey

You absolutely should have the water pump, tensioner, and idler bearings replaced at the same time as you have the timing belt replaced. Everything needed comes in a kit and costs a bit more than ...
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8 votes
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Timing chain cycle vs. sprocket marker position

Yes, it is by design ... because it helps to equalize wear across the sprocket teeth and chain links. Here's why I had originally shared a link in the comments which presents the formula to ...
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  • 39k
8 votes
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On a non-interference engine, do you have to replace the timing belt?

On non-interference motors there is no compelling reason to change out the belt on a schedule other than to ensure your vehicle does not leave you stranded at the most inopportune time. It will not ...
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8 votes

Timing Belt need replacing? Unknown mileage

The belt looks okay, but @dlu is totally correct I'm not liking the track. The first photo it almost looks like it's rubbing on the inside of the cam flange. In any case, you can count the cracks on ...
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7 votes
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Can camshaft seal leaking hurt timing belt and cause sudden engine breakdown while driving? - Volvo XC90

To answer your questions, if there is a real leak, then yes, there is a problem. The oil will cause the belt to deteriorate and possibly slip. When it does, it is catastrophic. Pistons slam against ...
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7 votes
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Ford Focus 1.6 Petrol Timing Belt

You can have a look at the condition of the belt to gauge its condition. But you'll need to have seen quite a number of timing belts to be able to tell. The risk is that when a timing belt snaps, it ...
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7 votes

Timing Belt need replacing? Unknown mileage

As others mentioned: Change it, the belt looks suspicious (especially the position and the side towards the engine) and it is much cheaper than a new engine. Just for the position of belt on the ...
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  • 7,828
6 votes
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What parts are usually changed when the timing belt is replaced?

Obviously the timing belt needs to be replaced. Then they could change any followers or guides which mechanically get worn out. I would always recommend getting the water pump changed if it is driven ...
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6 votes

Timing belt changed, won't start

The OP indicated in their comment that they didn't maintain timing in the process of replacing the timing belt. Since the 2007 Accord V6 has an interference engine, attempting to crank the engine ...
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  • 39k
6 votes

Timing belt changed, won't start

quick tip if any one is doing their timing chain or belt. make sure you have a picture showing the tdc( top dead center), double check all the marks match exactly no error is tolerated here, the crank,...
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  • 1,100
6 votes

Timing belt changed, won't start

On the Honda SOHC V6 engine when doing timing the mark on the crank sprocket should line up with a small arrow on the block @ 12 o'clock. The bank 2 cam gear should have the cylinder 1 TDC mark ...
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6 votes
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Cam Belt vs Belt Drive vs Serpentine Belt vs Fan Belt vs V Belt vs Timing Belt

As the comment says, looking at the web site you posted there seems to be a couple of flavors of engine for your car. So unless we know the displacement (it would say 2.3L V6 for example) we can't say ...
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  • 9,286
6 votes

Timing Belt need replacing? Unknown mileage

Echoing the advice you've already received, change it as soon as you can. I'm particularly concerned by the position of the belt on the sprocket and what looks to me like a wear line to the left of ...
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  • 14.3k
5 votes
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Using Acura or Honda crankshaft pulley holding tool and not impact wrench when loosening the bolt

I wouldn't hesitate using an impact to loosen the crankshaft pulley retaining bolt. The reason for this is because even though there is an impact involved, it is a rotary impact. The crank itself ...
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5 votes
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Correct procedure and cost repair BMW timing chain (BMW 318ti)

BMW's plan was for it to never be changed. Looking at some of the forums, I think advice given from this BMW site seems about spot-on: Well-l-l, I hate to say "never" but the point being, one often ...
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5 votes

Is there a way to tell if a timing belt has been changed without actually changing it?

Check around your engine bay. There may be a sticker indicating the last timing belt change if mechanic did stick it. Something similar to this.
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5 votes

Ford Focus 1.6 Petrol Timing Belt

The key to your mechanic's response about changing the timing belt and water pump "now" is that you have no real indication of the maintenance history of the car. You don't know if it's been changed ...
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5 votes

Determine age of timing belt on a 2003 Honda Accord before purchase

Here is a picture of what I believe your engine should look like: The red arrow should be what you are seeing. This is the serpentine belt which drives the accessories. The green arrow is the cover ...
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5 votes
Accepted

Subaru Legacy cam belt change

According to this site (and another site I saw), the change interval for your Subie should be at 105k miles.
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5 votes
Accepted

Hand turned the crankshaft while in gear. Clutch damage?

It's fine I did a similar job on a 2003 model recently. I kid car. Luckily, I didn't have any bent valves to deal with. Turning the engine over with the head off and the car in gear won't hurt ...
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  • 32.8k
5 votes
Accepted

Should I replace my timing components when I replace the water pump?

Given that the water pump is in such a bad condition it could be that rest of the timing related parts (idler, tensioner, something else?) is in the same condition. I suspect the previous owner did (...
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  • 7,828
5 votes

Should I replace my timing components when I replace the water pump?

I would say you should replace the belt and tensioner while you are in there and everything is apart. If you really want to put the old belt back on I would consider: How close the vehicle is to the ...
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