US Marine Engines

I had two engines sent out to be rebuilt. As soon as the engines were returned and put in we notice problems.

first the water pump was installed in reverse. The second thing was the compression was very low for a rebuild. The engine on the port side which needed the rebuild was going through oil after the rebuild. US marine engine said it just wasn't broken in.

Now it's almost two years later. The engines had to be pulled and rebuilt again and first news I got was that the cylinders were cut bigger, but then they put back in the smaller standard pistons. You can actually move the pistons with your finger from side to side. The mechanic also informed me their was a bent rod.

Said it probably happened when the engine was re assembled and someone at US marine engines was not paying attention. Only half the engine is torn down as of today but I can foresee more issues. The other engine seems to run ok but not what they promised and it ran ok before we sent it to them. We wanted both engines with the higher hp and fuel economy they promised.

Now were thinking the other engine was not rebuilt at all and all they did was throw some paint on the block and a new ignition. Stay away from these guys they are only going to rip you off. Still trying to decide on what recourse to take legally.. I am just shocked they are still in business.

I'm retired ARMY so those engines cost me a good chunk of my savings I can't replace. Stuck borrowing now to get them done right.

I bought a long block 7.4 in July 2015 from US Marine Engine. Spent 8 weeks transferring all parts from old to new engine.

After dropping my core with them in Auburn, they said it would be 2 weeks to hear back on whether or not it was worth the $600 core charge. After 6 weeks, I called back to find out that Robert no longer works there & that some paper work was missing. Elaina called me back a couple of days later to let me know that they left me a message in July, stating that my core was bad. I told her this was not possible because I didn't deliver the core until September.

She said there was nothing she could do, other than forward my info to Charlie (owner?). Charlie wrote me to say come by & pick up the bad core. When I asked if he could confirm the serial number of my core, he stated that all serial number tags are removed, and that they are all the same, so nothing to worry about.

So, they can provide defective cores (blocks & heads), from people who didn't pick theirs up to save on shipping & save on paying for perfectly good core engines. STAY AWAY!