Let’s discuss the question: how loose should a timing chain be. We summarize all relevant answers in section Q&A of website Mytholi.com in category: Blog Finance For You. See more related questions in the comments below.
How do I know if my timing chain is loose?
When you hear a rattle or unusual sound, it means that there is a problem with the engine. When the timing chain is loose, it can cause a vibration in the motor resulting in a rattling noise as the engine idles or when starting. If you hear a rattle, it means something is loose and needs to be fixed before it breaks.
How much play should timing chain have?
The book spec is 1/2″ play maximum before needing to be replaced. That’s for a stock engine, not one that you want to have performance out of for any reasonable length of time and certainly not for a brand new one. While using a tensioner is ok, all that does is remove the slop.
How To Check Timing Chain Slack -EricTheCarGuy
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Should there be any slack in a timing chain?
the tensioner should take up the slack on the curved timing chain guide, but as I recall, the “straight” side of the chain should have little to no slack unless you’re off a tooth.
Can you tighten a loose timing chain?
Rotate the eccentric to tighten or loosen the timing chain. The timing chain should be loose enough to prevent binding and tight enough to keep from falling off. The chain should move about 1/2″ for the front and 1/4″ for the rear without using force.
What does a loose timing chain sound like?
There is a rattling sound. A lax timing chain, or worse, a broken timing chain with loose parts within the engine, will produce a rattling sound when your car is idling. This rattling sound is typically most prominent while the engine heats up and disappears after some time.
Will a bad timing chain throw a code?
A stretched timing chain contributes to poor engine performance and increased emissions, triggering the check engine light and the storing of a diagnostic trouble code. A mechanic will need to inspect the code and prescribe the necessary repairs.
How do you know if a timing chain needs to be replaced?
- Starting the vehicle is difficult.
- Noise in the timing chain.
- Check engine light illuminated.
- Engine misfires and sluggishness.
- When the engine is idling, it vibrates or shakes.
- The engine will not start.
How much deflection should a timing chain have?
Same specs as what Ken posted, 1/2″ total deflection when chain is pushed towards the center of block then outside of block. Total should be less then 1/2″.
Timing Chain too loose or no?
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How much slack should be in a new timing chain?
The “slack” is known as deflection. A search for this term would probably yeild some results. 1/2 inch total deflection is the standard max.
What causes slack in timing chain?
Since the timing chain is housed inside the engine, it receives its lubrication from the engine oil, which is essential for its smooth functions. Despite having a metallic composition, timing chains can wear off, get loose, or break due to stress.
Can you tension a timing chain?
The tensioner ensures the correct and necessary tension of the timing chain that surrounds the crankshaft sprocket and the camshaft sprocket. It exerts full control, making the chain run smoothly, preventing it from rattling and coming off the sprockets.
Is it worth fixing a timing chain?
A timing chain doesn’t need to be replaced unless there is a problem with it. Is the timing chain immune to mechanical failures? The simple answer is No, it is not. Timing chain problems are not uncommon, especially in high-mileage vehicles.
What happens if your timing chain slips?
Engine won’t start or fails
A broken timing chain will cause an engine to not start or fail while driving. If the belt is already broken, the engine won’t have enough compression to start. If it breaks or jumps while driving, the pistons will be damaged from contact with the valves.
What is the Mini death rattle?
A weak tensioner can cause your MINI to develop the dreaded cold start (death) rattle. This is where the chain is not under the correct amount of tension and is free to rattle around against the plastic chain guides. The noise can be reminiscent of a diesel tractor on startup and does not sound particularly healthy.
How much does it cost to fix a timing chain?
Timing chain replacement can cost between $413 and $1,040. The cost is high due to the complicated nature of replacing this part. If you want to DIY a timing chain replacement, the parts will cost $88 to $245.
How much slack is too much in a TIMING CHAIN
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How do I know if my timing chain has jumped my tooth?
Hook up the timing light to the number one cylinder and start the engine. Aim the timing light at the marks. If the timing marks do not come close to alignment or you do not see any alignment at all, it means the chain has jumped position.
How do you know if your timing chain tensioner is bad?
- Engine may stall or run rough.
- Noise in the front of the engine (a rattle or rumble, associated with engine speed)
- Check Engine Light may illuminate and set misfire, camshaft sensor, and crankshaft sensor codes.
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