Before you all pick on me, I never do this . I've built a ton of motors over the years, and I know the right way to do it .
Not on this one though, I am putting a big bandaid on this old roll back truck that I drug home . I need very little time from this motor, if I get 5 k miles out of it , I will be thrilled . I bought this truck for the jer dan roll back bed, but I actually got it to run and drive after sitting for 11 years , and it actually ran ok . I drove it 11 miles home.
We did the normal stuff to try to bring it back to life , but the rings were all stuck, and 5 of the cylinders ended up having broken rings.
So I am going to do a quick and dirty in frame rebuild . Hone it , new pistons, rings , rod bearings, cam , lifters valve, job, oil pump and timing chain . . I am doing this in my side yard at home, not at the shop .
There are some mild scratches in the bore, but even in this shape, with broken rings , and a bad cam, I still got 120 psi out of each hole, so I am not going to fret over this too much
There is however a decent sized ridge on the top of the bore .I did not ridge ream it , I was able to push the pistons out by hand over the ridge, and after honing , the ridge is a very mild transition , and does not really catch on my fingernail , but none the less, is still there .
My worry is that the new rings will constantly pound on this ridge and break them . Would you ream it off, or just drop the slugs in and send this bastage down the road ? I have a reamer sitting here, I just do not want to make the top of the bore any larger than it already is
I had not planned to get into the motor at my house like this, but I started tinkering one evening , and next thing I knew, heads were off , and I figured I was all in at this point
Here are some photos
Here is the specimin
. Ugly old truck but I can work it while I look for a donor International 4700, or Topkick box truck to drop this roll back on .
Would be happy to hear any and all advice .