Motorcycle Pushrods & Covers FAQ
What are symptoms of a bad pushrod in motorcycle?
When you have a bad pushrod there will be a few different things you will notice. You may notice a lack of power combined with backfiring. You may also notice a loud ticking sound coming from your rockers. These are the typical sign that you have a pushrod problem. If you have a bad pushrod, it is possible that you have damage in your valve train. If you have these symptoms, unfortunately you will need to break out the tool box and do some work to get things functioning as they should.
Can I reuse pushrods?
Yes, you can use old pushrods as long as they are not bent. It is important for the pushrod to be straight. There is some concern about how the pushrods wear, so if you are going to reuse old pushrods, it is best to make sure you install them exactly as they were removed. Some will say this does not matter, and in most cases it does not. It is true that pushrods do wear and if you are being extra careful, putting them back exactly as they were removed is a good practice.
How is adjustable pushrod different than normal pushrod?
A standard pushrod is made to a specific length and is not adjustable. It Is basically a metal hollow rod. An adjustable pushrod has a threaded shaft and allows you to extend the length of the pushrod. This can allow you to change cams and do other adjustments without having to remove the heads from the engine.
How do I diagnose a bent rod?
If you think you have a bent pushrod the best way to determine if this is indeed the issue is to remove rocker cover. When you pull off the rocker cover you will be able to see the valve train. If you don’t see any damage you will need to slowly turn over the engine to check if the valves operating properly as the engine rotates. It may be necessary to check the clearance of each valve individually. When you notice a rocker or valve not operating like the rest, you found the bad pushrod.