Need Mucho Help!!!!!

[MYYellowTY]

OK!!!My truck has started making a rattle noise in the ngine area.Its hard to pinpoint where exactly.Its quiet at idle and doesnt start till I hold the RPMs at 2k or higher.I just tested it on DM for the first time and thing I have major problems.Ive done a full MSD tue up and ignition upgrade capped the EGR and installed a AFPR and Walbro pump, plus a Ultimate version 7.

My Knock retard hits a High of,ready for this...............19.2!!! I know,thats BAD!!! Also I noticed my boost Tops out at 8#s or so.I know there were a few items that could cause this but cant remember what. And when itscruising with 0 boost the WGDC is 100% and at 8#s was at 75%, is this right???

DM info:
RPM-3256
speed-65
boost-8.2
boost tgt PSI-10.9
spark adv-0
IA temp-131.4
TPS%-76
Spark Retard-18.3

I did find the harmonic balancer spun a month ago and set the TDC and marked it 0.It was off by 12degrees.Im second guessing myself now.
Also before I put the plugs in 2months ago I did a comprssion test and got:
1-174
2-171
3-168
4-175
5-172
6-161
Seemed ok, but now im planning to set timing back to old mark and see how a DM run is.Also plan to pull the plugs and check compression again and see if my little sound is a ring or bottom end gremlin.

also my remote oil hose is slowly leaking and my oil is full always.Im thinking my old problem of FP leaking moderately down after shut off may be my prob.Does this sound reasonable?I checked the AFPR and seal is good, installed Walbro pump and still bleeds down.Am I looking at a injector leaking down when off?And maybe washed out the cylinder causing the ring to go bad and keeping my oil full even though its leaking?I need to check the oil for fuel smell first off!!!

Any other ideas or suggestions to try???
Ive got a long weekend ahead of me!!!!!
Thanks All!!!!

 

[V895]

Re: Need Mucho Help!!!!!

What does the rattling niose sound like deep and fast or like a tick and slow?

 

[MYYellowTY]

Re: Need Mucho Help!!!!!

Its not deep like a rod nock,But its louder then a lifter tick.Its kinda like a bearing going on an alt. but more of a tap.I did notice that the engine was way lean and I fatened it up which helped get rid of alot of the noise.Which made me happy, but also puzzled me!!!!

 

[Flyin Ryan]

Re: Need Mucho Help!!!!!

OK!!!My truck has started making a rattle noise in the ngine area.Its hard to pinpoint where exactly.Its quiet at idle and doesnt start till I hold the RPMs at 2k or higher.I just tested it on DM for the first time and thing I have major problems.Ive done a full MSD tue up and ignition upgrade capped the EGR and installed a AFPR and Walbro pump, plus a Ultimate version 7.

My Knock retard hits a High of,ready for this...............19.2!!! I know,thats BAD!!! Also I noticed my boost Tops out at 8#s or so.I know there were a few items that could cause this but cant remember what. And when itscruising with 0 boost the WGDC is 100% and at 8#s was at 75%, is this right???

DM info:
RPM-3256
speed-65
boost-8.2
boost tgt PSI-10.9
spark adv-0
IA temp-131.4
TPS%-76
Spark Retard-18.3

I did find the harmonic balancer spun a month ago and set the TDC and marked it 0.It was off by 12degrees.Im second guessing myself now.
Also before I put the plugs in 2months ago I did a comprssion test and got:
1-174
2-171
3-168
4-175
5-172
6-161
Seemed ok, but now im planning to set timing back to old mark and see how a DM run is.Also plan to pull the plugs and check compression again and see if my little sound is a ring or bottom end gremlin.

also my remote oil hose is slowly leaking and my oil is full always.Im thinking my old problem of FP leaking moderately down after shut off may be my prob.Does this sound reasonable?I checked the AFPR and seal is good, installed Walbro pump and still bleeds down.Am I looking at a injector leaking down when off?And maybe washed out the cylinder causing the ring to go bad and keeping my oil full even though its leaking?I need to check the oil for fuel smell first off!!!

Any other ideas or suggestions to try???
Ive got a long weekend ahead of me!!!!!
Thanks All!!!!

Wow 19 degrees holy hell!!!

Worse I ever had was 18.1 and it was caused by a horribly programed custom chip but anyways what fuel pressure you using with that Ultimate? When setting the timing did you disconnect the tan wire first before setting it? The noise.. could it be a heat cover from a cat or dp rattling away? Does the noise occur while in park or does the truck have to be under load? Also did you put a 3bar map in? How did the truck run before doing the chip, ign, and other parts?

As far as your wastegate dc %.. I believe the more boost your in the lower the number drops.. Just looked at one of my old dm files and mine shows at 2950rpms with 9.1psi has 69.0.. then at 3200rpm's with 15.1psi it shows 65.1 so I think each truck is different slightly but eitherway that can't be the cause of your problems.

Also your IA Temp is kind of high.. is your IC pump working alright?

 

[MYYellowTY]

Re: Need Mucho Help!!!!!

Well its getting better!!!!The sound come to findout is from the AC unit. Been real hot here in San Diego so ive been running AND TESTING it with air on. :roll: So the sound is gone and I have since put the timing back to OG mark on balancer and its better with only 12KR.And thats with the tan wire disconected.So I put a 160 thermostat in and it dropped IAT 20 degrees also,DUH!!!And I had base FP at 51 with hose off and plugged and 61 when hose on.Got it down to 10KR.So I bumpede it up 2 more PSI and its down to 9KR.So its obviously lean but on DM if on short Term vs MAP its in Stoich range(as accurate as this may be,not very!!)but in L Term its Lean all the time.Which way should I be using to get FP in ballpark??

Also im running crapy CA 91 fuel so im gonna pick up some Meth to add in and see where it gets me.What FP is to high??I have stock motor and Turbo with Msd ign and Walbro ,with AFPR and stock INJ.How much can the INJ take?Id like to get it close to 0KR on pump or with a booster since thats my normal driving habbit.And then when 110 goes in it should be sweet!!!

Yeah Boosted ive been comparing to your runs on DM but dont know what FP you run and IM SURE your NOT stock on Turbo either!!!

Any help is GREATLY appreciated!!!What adj. can bring don KR?? Timing,FP,Octane,IAT and???? THANKS!!!

 

[Flyin Ryan]

Re: Need Mucho Help!!!!!

Yeah Boosted ive been comparing to your runs on DM but dont know what FP you run and IM SURE your NOT stock on Turbo either!!!

Well sad as it is I still have the stock turbo

I've only ever had 93 or 115 octane in the truck so none of those runs on that laptop would be anything but.. and my fuel pressure has been anywhere from 42 to 48 vac connected (42 is stock base i believe) so hope that helps some when comparing.. I can't even begin to think of how much it must blow to drive these things with 91 octane! Get a alky kit and run meth you'll be able to lower your fuel pressure and have almost zero knock.. but you'll be refilling that catch can alot

oh yeah keep out of the boost until you get the kr down mang

 

[MYYellowTY]

Re: Need Mucho Help!!!!!

Yeah I was gonna buy a 12oz. can of octane booster for $11 but said forget it im going to get a 5 gallon can of Meth for $35 right now.In the owners manual I think it said dont run more then 20%Meth to fuel.Anyone know off hand if thats right???I keep turning up the fuel press. and its loving it.On the S term its at 0 and on L term its lean.Im at 67 PSI now with vac on.It runs better the higher I get and KR goes down too.But where should I draw the line on the PSI??Anyone running this high on stock Injectors??

I thought you had a larger turbo Boostewd cuz some runs were getting 25PSI.Im happy I just got this to 15 finally.Since I got it its been at 6PSI.But glad its mostly just tuning to get it back up. :tup:

Well time to go 70 and test it out.Id like to get it to under 4KR w/o a addative.But yes someday Ill have ALKY on it!!!!