31
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....
- 3,440
26
votes
Accepted
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 ...
- 162k
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 ...
- 162k
17
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 "...
- 286
12
votes
Accepted
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 ...
- 1,945
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 ...
- 162k
8
votes
Is my timing belt looking bad?
There is just about no way to know the viability of a timing belt by looking at it. Your belt could last another 100k miles or it might pop tomorrow. This is why it is important to follow the change ...
- 162k
6
votes
Accepted
Is it safe to start the engine after rotating crankshaft by hand(using a torque-wrench)?
If you are worried about cam timing and lunching the engine, if you've not taken apart any of the cam timing components (belts/cogs/tensioners), you've done nothing to cause you issues. I think the ...
- 162k
5
votes
Renault Kangoo overheating - Waterpump? Thermostat?
There appear to be three problems here:
Loss of coolant, and
Overheating, and also
No heat.
That's a lot of problems to have show up all at once, so it would be good if we could find a common ...
- 14.5k
5
votes
Timing belt issues
The F22B2 Honda motor is an interference motor. What this means is, the pistons and the valves share the same physical space inside the engine just not at the same time ... well, that is if everything ...
- 162k
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 (...
- 8,513
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 ...
- 8,448
5
votes
Is the time belt replacement criteria exaggerated?
If the engine you are putting the timing belt on is an interference engine, it is definitely NOT exaggerated. The reasoning here is, the timing belt is cheap insurance over breaking the old one, which ...
- 162k
5
votes
Timing belt specification
I don't like those "preprinted" marks anyway. You are much better off following the sprocket alignment pictures below.
After the belt is installed and the tensioner properly set, crank the engine ...
- 12.4k
5
votes
Why does this mechanic change the crankshaft mark, during this timing-belt change?
The simple answer to this is that you can make any marks you want on the pulleys before you take the belt off. As long as you put the belt back on with the pulleys in exactly the original position as ...
- 25.5k
4
votes
Should I replace my timing components when I replace the water pump?
It it was my car, I'd do the timing gear whilst it was apart. I'm not a fan of reusing timing belts if they have to be disturbed plus it's a good opportunity to do it whilst everything is already in ...
- 23.4k
4
votes
Should I replace my timing components when I replace the water pump?
The 98 Mazda 626 owners manual states the timing belt should be replaced every 105k miles, or every 60k miles if you drive in extremely cold weather (indirect source https://mazda626.net/topic/31256-...
- 4,910
4
votes
Accepted
Should a Timing Belt Pulley Spin Freely or Not?
I think both are stating the same thing, but telling it differently. Basically what I mean by this is, spinning freely does not need to mean it will continue to spin without stopping, but rather spins ...
- 162k
4
votes
Accepted
Is there clearance for the valves to go, in case of busted belt on a C4 1.4 V16 2005
You probably have the ET3 engine which is the 16-valve version of the TU3 with variable valve timing.
Unfortunately I believe it is an interferance engine.
http://www.saxperience.com/forum/showthread....
- 310
4
votes
Accepted
Volvo 2.0D engine "self-oscillates" after changing timing belt and adjusting fuel-injectors
Please state the exact engine code, it would be also nice to know the exact work that he did there.
Just some informations on injector maintenance:
Injector maintenance is a very complicated thing, ...
- 8,513
4
votes
Best practice to tell if an interference engine has bent valves?
Without pulling the head you can do a leak down test.
Set cylinder 1 to TDC make sure the cam and crank align.
Pull the intake tube and open the throttle.
Hook up a leak down testing kit.
Listen for ...
- 10.7k
4
votes
Replacing Timing Belt - 2006 Honda Odyssey
The water pump is also accessible underneath the timing cover on most engines. These are usually replaced together and sometimes included in the same service kit along with timing tentioners/guides.
- 474
4
votes
Accepted
How to check that crankshaft and cam pulleys are in sync?
Simple engine dynamics of a 4-stroke engine dictates as long as the timing marks are aligned for the engine, it will take two complete rotations of the crankshaft for things to be aligned again. As ...
- 162k
4
votes
Accepted
Do you need to replace a timing chain?
If your mechanic says 'Timing chains are for life and require no maintenance' then please find a new mechanic.
There are loads of examples of timing chains that are designed for life but suffer from ...
- 2,785
4
votes
Does my car have a timing belt or timing chain?
From what I have read, the Zetec engines of this period using a timing belt. The image attached shows what looks to be pretty much identical to your engine but with the plastic timing gear cover ...
- 23.4k
4
votes
Will it do any damage to the auto transmission if I manually rotate the crankshaft at Parking gear?
No, this will not cause any damage.
Cars have the engines running while they are in park.
Park is a selection in the ´box that allows the fluid to circulate without providing any drive to the wheels....
- 34.7k
4
votes
Lack of power/acceleration
It's possible but extremely unlikely that the timing belt is the culprit to a power loss. The timing belt (or chain in some cases) synchronizes the movement of the pistons and valves in the engine. ...
- 17.7k
4
votes
jacking the engine for timing belt replacement
While the official workshop manuals often demand specialty tools and accessoires, jacking the engine up is practiced commonly.
The main danger is a crushed oil pan when someone places the jack onto ...
- 8,513
3
votes
Accepted
Best practice to tell if an interference engine has bent valves?
Simplest test I can think of is check the timing gear is intact and properly aligned then perform a compression test. If there is no compression on one or more cylinders, it's safe to assume it's got ...
- 23.4k
3
votes
Strange noise from timing belt area
well you either have bad bearings in your tensioner or a really fast telegraph operator in there.
Change out that tensioner and its springs which is what should almost always be done when changing ...
- 2,879
Only top scored, non community-wiki answers of a minimum length are eligible