What size are Honda motor mount bolts?

The size of Honda motor mount bolts can vary depending on the specific model and engine. However, I found some information that might be helpful.
According to a forum post on Honda-Tech, the motor mount bolts for an EK chassis (such as a 99-00 Si) are 10mm in diameter, 45mm long, and have a 1.25 thread pitch.
Another source, Downstar Inc., provides information on motor mount dress-up hardware for different Honda engines. For B/D/H-Series engines, the kit includes two 100mm bolts and one 120mm bolt. For K-Series engines, the kit includes one 100mm bolt and two 120mm bolts.
Please note that these sizes may not apply to all Honda models and engines. It’s always best to consult the specific vehicle’s manual or contact a Honda dealership for accurate information.
I hope this helps! Let me know if you have any other questions.

Should I use Grade 5 or Grade 8 bolts?

In conclusion, choosing between a grade 8 and grade 5 bolt depends on the application’s requirements. If the application involves high-stress and high-vibration conditions or critical components, grade 8 bolts are the preferred choice due to their higher strength and reliability.

How many motor mounts does a Honda have?

Your engine has four rubber mounts holding it in place. The mounts make your car much nicer to drive because they absorb engine vibration.

What are grade bolt sizes?

There are several grades of bolts but the three common grades for SAE are 2, 5 and 8. The common class (grades) for metric are 5.8, 8.8, 10.9 and 12.9. Each grade has a specific bolt strength. No matter the system used, the higher number means the stronger the bolt.

What are Grade 8 bolts used for in automotive?

Grade 8 fasteners are often used in applications where high strength is required. Some examples include: Automotive: Grade 8 fasteners are commonly used in the automotive industry to secure engine components and other parts that are subjected to high loads or forces.

Are all motor mounts the same size?

There are all kinds of engine mounts that all come in different sizes and types, selecting the right one can be a daunting process. However, through customization processes and analysis, the engine mount can be designed to meet certain specifications and optimize performance of the system.

Do I need to replace all 4 motor mounts?

Cars usually have between two and four motor mounts. If one motor mount is damaged or worn, you can likely get away with just replacing that one. Still, it’s a good idea to check the other mounts since they are around the same age and could be close to wearing out.

What grade bolts are used for engine mounts?

For chipper shredder application, an SAE grade 8 bolt must be used on the crankshaft end due to the higher shock loads. Thread forming bolts are typically used on vertical shaft engines which utilize blind holes – holes that are not completely drilled through – for mounting the engine to the application.

Are automotive bolts Grade 8?

Grade 8 fasteners are often used in applications where high strength is required. Some examples include: Automotive: Grade 8 fasteners are commonly used in the automotive industry to secure engine components and other parts that are subjected to high loads or forces.

Is replacing a motor mount easy?

Generally, they are not easy to access, and you need to support the engine to replace one, so most of the mechanic’s motor mount cost is paying for labor. If the vehicle has three motor mounts and they are hard to get at, like in a minivan, labor costs are higher.

How long do Honda motor mounts last?

5-7 years
Usually, engine mounts should last between at least 5-7 years, depending on the application. Still, we recommend getting them checked regularly when the vehicle is being serviced or when any other work is being carried out.