Ok I read the sticky and understand all that. But I have also read quite a few other threads on this subject and after some more research it seems I'll be able to get away with a KD valve spring tool as opposed to a 400$ tool. Also I'd like to know how the majority of you guys are doing your springs because I found threads where guys are just pulling the old ones and dropping in the comp 910s no seal change or shims? What's everyone's .02?
Curios as well. As to what thickness of shim to use with certain boost numbers, If that's what you base shim thickness off of? I don't know much about shims and such but plan to build my motor this fall and also curious if it is okay to have shimmed valves and 910 springs but still run a stock turbo till funds are available for an s468 set up. I think the two thicknesses are .015 and .030 Not trying to hijack your thread. Just trying to get some information on springs also.
ok thanks guess so my install height with the 910s needs to be 1.78? running 250/100 injectors and s366. Also I can save the factory valve stem seals right? they are 2-3 weeks out everywhere and I was only able to borrow the tool for a couple days.
id love the do it right approach but truck is my daily and is down cause the mech pump failed so while I have it apart im doing it all. I borrowed the tool and summit racing is 2 weeks out for the seals ill keep scrambling to see if I can get some. I can get them from amazon but even then not till mid next week and this tool belongs to a ford dealer so I have to get it back soon
I was able to locate some in Portland after calling every napa and machine shop in the area they will be here Monday morning so Ill have to hope the dealer I borrowed the tool from doesn't throw a hissy fit. FYI international gets 9.86 a piece for them suckers I called them to but they wouldn't be here till wed. Like I said I tried just about everything till I located a set through a machine shop. Thanks for suggestions guys.
You need high pressure when you run higher boost aka: valve float. I'm on my Android and don't have patience to do the calculations for spring pressures.
Not a fan of using the EBPV as an exhaust brake due to the hydraulic lifters in the 7.3. An exhaust brake prevents the exhaust valve from opening which a lot of strain on the valve train unless the motor was designed for exhaust brake use ie: solid lifters, HD pushrods and rockers.
Process is not hard just time consuming. You need to take your time and measure, measure, measure.
There're a few different tools to release the keepers. The OTC one was meant/designed for these motors.
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