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If you're not sure which option to choose, our team of experts can help. Contact us today and we'll assist you in selecting the appropriate timing belt or chain for your engine. We'll consider all factors and walk you through the entire process.

When choosing between a belt or chain for your engine, you should consider various factors. These include cost, weight, level, durability and maintenance requirements. Depending on the type of vehicle you have, one option may be more suitable than the other.

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Pros: Timing chains are sturdier than belts, making them better suited for higher-performance engines. They also last longer and require less maintenance overall.

This one is APFS. (Don't use case-sensitive unless you have to!) Additionally, the drive can not have had Time Machine on it since it was formatted.

Two types of timing systems are used in modern engines: the timing belt and the timing chain. Both components are essential for keeping your engine running smoothly, but which one is better?

Cons: Belts are made of rubber, so they can become brittle over time and may need to be replaced more often than timing chains. Belts also tend to stretch more easily than chains, which can cause your engine to run inefficiently or even break down completely if the belt slips off its sprocket.

Pros: Timing belts are quieter and tend to last longer than timing chains. They also take up less space in the engine, making them ideal for cars with tight engine compartments. Additionally, they are relatively inexpensive and easy to replace.

Timing chains require more frequent maintenance than timing belts, as they need to be checked and adjusted regularly to ensure proper functioning. It is recommended to check timing belts regularly for any signs of damage and replace them after covering a distance of 50,000 to 90,000 miles.

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When it comes to durability, timing chains are generally more reliable and longer lasting than timing belts. Timing chains have a longer lifespan than timing belts, with a potential mileage of up to 150,000 miles before replacement. In contrast, timing belts usually need replacement between 50,000 and 90,000 miles.

So, as Richard Taylor said, it may be that your external hard drive is not formatted properly, or perhaps does not have the appropriate settings and permissions.

You didn't describe what method you are using to back up to an external drive. Are you backing up your Photos library by copying and pasting it? Are you coping the photos and attempting to paste or drag them into a Photos library on your external drive? Are you backing up to a Finder folder? Are you using the Image Capture app to transfer the photos to your external drive?

When it comes to cost, timing belts generally tend to be cheaper than timing chains. However, timing chains typically last longer and do not require as much frequent maintenance as timing belts, which makes them the better option in terms of value.

This could be a hard drive thing. How is your external hard drive formatted? To get full functionality (and to avoid damaging the Photos Library) an external drive must be formatted in either APFS format or Mac OS Extended (Journaled) format. When you select your external drive and type command-I for information, you can see the Format:

Timing belts and timing chains both serve the same purpose - to keep the crankshaft of an engine synchronized with its camshafts. Both are integral components for any internal combustion engine, but there is a key difference between them: timing belts use rubber links that are connected in a loop, whereas timing chains are metal linkages connected by chain links.

This one is APFS. (Don't use case-sensitive unless you have to!) Additionally, the drive can not have had Time Machine on it since it was formatted.

When you sign up with your Apple Account, you can provide valuable feedback to other community members by upvoting helpful replies and User Tips.

Cons: Timing chains can be expensive to replace because they need to be removed from the engine before being replaced. Additionally, timing chains tend to generate more noise than timing belts, so if you're looking for a quiet ride, this may not be the best option.

This could be a hard drive thing. How is your external hard drive formatted? To get full functionality (and to avoid damaging the Photos Library) an external drive must be formatted in either APFS format or Mac OS Extended (Journaled) format. When you select your external drive and type command-I for information, you can see the Format:

2 months ago I was able to backup my photos onto an external hard drive. I tried backing it up again recently and was hit with an Image Capture Error 9934. I tried restarting both my Macbook and iPhone but nothing worked. Any advice?

Ultimately, the decision between a timing belt and a timing chain comes down to preference. Timing belts offer lighter weight and quieter operation while chains are stronger and last longer. Cost wise, belts tend to be cheaper but in terms of value for money, chains may be better due to their longevity. Maintenance requirements should also be taken into consideration when making your choice as it affects both performance and cost over time. It is important to research which option is best for your specific vehicle before making a decision.