So let’s say you’re getting into the nitty gritty of building an engine or maybe even just updating your current setup. In either case, whether you are going to run a hydraulic flat tappet camshaft or not is very important when selecting a fuel pump pushrod. Now let us get down to brass tacks on what you need to keep in mind when selecting a suitable pushrod for your specific application.
- Material Matters: Firstly, material selection is vital. Traditional fuel pump pushrods usually made from steel but high-performance cases may require something stronger like chromoly. The bottom line is that you want something that can handle wear and tear while being compatible with the camshaft material as well. The last thing you want is accelerated wear on that lobe because you were cheap with the pushrod.
- Length and Diameter: While it may seem like one size fits all, the length and diameter of your pushrod actually play a significant role here. Too short or too long means incorrect geometry which in turn leads to various issues such as improper fuel delivery, accelerated wear and probably binding. As for diameter, consider it with regards to your RPM range and load conditions. A thicker rod could be less likely to flex but will add more weight thereby affecting high-RPM performance.
- RPM Range: For instance, always make sure the chosen pushrod can handle the desired RPM range. Otherwise at high speeds, a fuel pump pushrod that isn’t meant for it might flex or break suddenly; this would be chaotic during top speed cruising along a highway or off-road racing.
- Compatibility: Obviously enough; your fuel pump pushrod must match both the camshaft and fuel pump itself. As much as this may seem obvious look again at those figures before they bring some agony later on.
- Oiling Needs: Speaking about flat hydraulic tappet cams don’t forget they require lubrication too. So certain rods come with oiling holes that are meant to keep things properly lubricated as they go on. Just be sure to check if your pushrod meets the oiling demands of your camshaft.
- Professional Consultation: In case you are unsure, it’s better to bring in experts. Doubtful? Phone up the cam maker or even talk to a knowledgeable guy at any car parts store and see what he or she has in mind.
- Price and Brand: Just because it is cheaper does not mean you should get a cheap no-name pushrod. Stick with manufacturers who have solid reputations for quality and dependability. Remember, one failed pushrod can cost more than just replacing the part; it could mean engine damage down the road.
In summary material, length, diameter, RPM compatibility and proper lubrication are the main aspects. Well, if you are still in doubt you know who to call right now- experts! To sum up, having an appropriate fuel pump pushrod for hydraulic flat tappet cams doesn’t only make sense; this is basic engineering 101.
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