Hello all. Back again with another issue which is related to my last post but not so much that it can be integrated into that post. So i started this one to highlight a completely different issue. This is on my Cat Backhoe 426 engine number LD70201U128179A, a Perkins 4.236 SN7BC00580. I was never able to get this thing started after the injector pump issues and decided that i would just check out some other things and maybe replace the injectors. The main objective first was to check the compression on each cylinder while i had the injectors out. Problem is, i am so far not able to lay my hands on a tester in this area. Will have to order one online and wait for it to arrive. In the meantime i have pulled the injectors. Two of them just kind of pulled right out and the other two were like pulling a wheel of without taking lugs off first. LOL . I made a HOMEMADE puller that worked great and will post pics if anyone is interested. So got them all out and they were really corroded and nasty. They unscrew apart and the nozzle is then exposed. Here is the issue, while they are all corroded and coated with a black substance the tip in the nozzles were all free and was easily removed. I sprayed brake cleaner in each nozzle and it sprayed out the tip in what seemed to be a good pattern? However, i have never worked on these things and have no way knowing WHAT i am supposed to be looking for. // Maybe someone out there can enlighten me on what the issues could be on nozzles? BTW, rebuilt ones are really pricey!! Also, I found this technical data associated with the nozzle and was wondering if anyone can explain what this means: 4X0, 29X150 ? Maybe not important?
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