I am changing my fuel pump and may have a big problem...

I run a Comp street Extreme Energy hydraulic roller cam. It is the austempered cast core. I also use the bronze tip Comp push rod. I was not having performance issues after 5 years of use and a few hundred passes at the strip. I was only changing the pump in preparation for some boost.

Anyway, the rod won't come out. I called comp and they said I likely just mushroomed the bronze a bit and created a ridge, but didn't lose the lobe or anything. Has anyone had a similar experience?

I am changing my fuel pump and may have a big problem...

I run a Comp street Extreme Energy hydraulic roller cam. It is the austempered cast core. I also use the bronze tip Comp push rod. I was not having performance issues after 5 years of use and a few hundred passes at the strip. I was only changing the pump in preparation for some boost.

Anyway, the rod won't come out. I called comp and they said I likely just mushroomed the bronze a bit and created a ridge, but didn't lose the lobe or anything. Has anyone had a similar experience?

Hi Greg, not sure how easy to remove it now, but it needs to be gotten out of there! Removing the cam and "deburring" it through the front cam bearing hole may be the only way to a fix? Still not all that easy while installed/assembled.

Comps "cast-core" rollers (hydraulics OR solids) use the stock fuel pump pushrod, not the "bronze-tipped". These also use the "stock" G.M.
distributor gears as well!

The "bronze" is for steel cam cores only! Both the dist gear and the fuel pump rod!

(Add) If you simply can't remove it, leave it in place and go to an electric pump.

Thanks, Gary in N.Y.

P.S. Comps cores are recognizable by the last digit in the part number, a "-8" is a cast core, a "-9" is a steelie!

I once had a problem with a stuck pushrod however I was able to fanagle it out of the block....It was slightly bent!

I had the same issue but with a Comp austertempered (big word these days) cast roller. I was able to work it out but fuel pump lobe was gone. I went to an electric for about a year then tore motor down, to replace cam with a billet roller and roller tipped push rod. I used the brass tip push rod upon Comp recommendations, that if I ran any fuel pump other than stock pressures or volumes, I needed this. May have been a trick to ruin my cam so they could sell me another. Thanks but no thanks, I got me a billet from Udharold with the cast iron dist gear.
If you cut your oil filter open, you probably will find the brass, usually the drain plug magnet will pick up the metal iron, if you have one.

I thought I was the only one having these issues.

I had the same thing happen in the past except not a roller cam. I grabbed it with some vicegrips and it pulled out pretty easy. Cam was fine, threw in a stock one and went...

Thanks guys. Comp assured me that the bronze tip rod was compatible with the iron cam and also that the bronze would wear first and not hurt the cam until the bronze is gone. I'll try to get it out with vise grips and see how it looks. If there is still bronze there I'll get a new rod and throw it back together.

i got a stupid question on this tho. did you take the plate off block behind fuel pump before trying to take fuel pump rod out.

There is no such thing as a stupid question. Yes you have to take the block off plate to get the fuel pump rod out. Good Luck Jerry

Another non stupid question. But with the backing plate off couldn't you just bump the starter to push the rod out? Let the motor do the work for you.

Another non stupid question. But with the backing plate off couldn't you just bump the starter to push the rod out? Let the motor do the work for you.

Mushroomed , at the tip. Fuel pump lobe does not push rod all the way out.