Rebuilding Ty #284

[BMFB]

Re: Rebuilding Ty #284

Been a long weekend, and half the pictures I took I took with my phone which I can't transfer right now, but its at least an update.

Well, I got the bareblock, crank and all of the other parts on friday, and started working on it. As you know, the reason the motor came apart was because of a issue with the balence of the crank. It was recommended to me to go to mid-michigan crank and have a man known as Cal do it, and convert it over to be internally balanced. I thought this was overkill but I went with it anyway. long story shot I go tit all back and started putting it together. My engine builder machined everything and ordered all of the correctly sized parts, assuring me that it just needed to be bolted together. I checked everything out and indeed it seems he was correct (I had to check).

Everything went together pretty well, with the only difficultys being removing the timing gear from the old crank (had to modify a puller) and locating a new nylon oilpump driveshaft guide (mid michigan auto).

on sunday I had it ready to go in, but delays kept me from really getting started on it until late, myself and a friend managed to get the motor bolted into the truck, and am currently sitting at about 60% completion of the installation. I am hoping to get it finished up tonight, and get it fired. I am going to have to play with fueling though, as I have doubled the size of my injectors...

 

[BMFB]

Re: Rebuilding Ty #284

Progress is slow, apparintly the exhaust got bent while the motor was out...somehow....so the downpipe refuses to attach correctly to the turbo. The only way I can really see around this is to cut the cat out and just have it open DP until I can get it to muffler man to have it mended.

 

[BMFB]

Re: Rebuilding Ty #284

A closer, less enraged look reviled that the down pipe going into the cat isn't actually part of the flange, but is actually simply slipped into the flange going to the cat. I took a hammer and bashed the cat back a few inches off the the DP and it went together with no issue. Still not sure what pushed it back however...

Made good progress though for a the few short hours I had tonight after school. I got the rest of the intake on, turbo installed, vacuum lines ran, throttle body installed, and most of the harness done. Only things left are the intercooler and plumbing that goes with it, condenser and radiator, then afew little things, setting timing and trying to get the tune to work with the new injectors. might be able to have it done it time to drive it around tomorrow.

 

[BMFB]

Re: Rebuilding Ty #284

So, big fun....

I had the motor together and had rolled it over several times by had just for the thrill of it before I decided to start it. When I went to start it I got nothin, and after playing with the timing I still had nothing...so I decided to look further.

A compression test showed that I had 0 psi in 2 of my cylinders, and after checking my lawn mowers compression, which was 90psi, I got scared.

I decided that it must be a cam issue, because it seemed to be a global thing, not just limited to one bank or 1 cylinder. I pulled the timing cover off and looked at the setup, and it looked fine, but after looking at some pictures on timing sets online I saw that everyones crank key was pointed at about 2 o'clock, where as mine was closer to 5. I saw that there was a key in about the 2 o'clock position so I pulled it apart and reset it. after which compression was great in the 2 cyclinders I checked.

Long story as to why that might have happened. I just got a new crank, and I had to pull the timing set off of the old crank and put it on to the new. i used the old crank as a referance as to how it should go onto the new one (3 choices) and put it together like that, which ultimently was wrong. what I think happened was the last time the motor was built (by my engine builder) he did not use those marks, and instead degreeded the cam in using somekind of magic because it ran great. when I did it I just used the marks, which doing so based off of what had done before led to the huge issues that i had.

SO I started the truck and it ran ok, but had a bit of a miss and a goffy scary sound coming from the front cover. After pulling the front cover off I saw immedietly that the timing set was scraping the cover, and that my decision to use no gasket was the colpret. I drained the oil, did my best to spray out the pan and clean all the metal shaving out and put it back together with 2 gaskets to space it out a bit further.

Next I looked at the lash and after fighting to get both valve covers off I saw that one rocker was laying sideways and though 'jackpot, miss solved!' after looking a bit closer though I saw that my pushrod was a really cool Z shape and after some more looking I saw that 2 other ones were the same way, on cylinder 4 and 6.

I pulled out all the pushrods and after some talking with ken built a leakdown tester out of a compression tester I have. I put 30 psi in each cylinder and everything seemed to be fine so I put it back together and Fired it. Seems to run great, way smoother than before. I still need to spend alot of time tuning it, as the 50 pounders seem to have a much different curve than my 32's. i was hoping just to change the BPW and have something I can start with fuel map wise, but I was def. hoping for too much. I should be able to get it going in the next few days though.

 

[BMFB]

Re: Rebuilding Ty #284

I got my hands on a borescope, even has an attachment to look backwards for easy valve viewing.

 

[BMFB]

Re: Rebuilding Ty #284

had some issues with getting this thing tuned, and no matter what I did I couldn't get the thing to run right. I suspected something was wrong with the injectors I bought and swapped them out last night. After re-loading my old tune I drove it around with great success. I believe the injectors I bought were bought by seller and never used. I see that they are dated for 03, I'm going to check and see if they were low impedance or something...

either way the thing is driving around and seems to be alright. its making boost better than it was before it came apart, but I hav't gotten on it at all yet, still low in break in miles...

 

[BMFB]

Re: Rebuilding Ty #284

so...I fixed it...and it has been driving around for awhile now. I had a horrible leak comeing from a hose that basically broke off of my trans cooler and dumped nearly 2 gallons of fliud onto thte road in about 3 miles. I fixed that and fixed a few other leaks as well. I found I was leaking oil from my adapter thing on the block from a bolt that was tight, and had a lock washer on it, but the lock washer had...spread out around the head of the bolt...and the bolt was no longer holding pressure against the adapter. I drove it to work this morning and it seems to be leaking alot less.

I also raced some kind of porscha and beat it on the highway, and up a windy road.

 

[BMFB]

Re: Rebuilding Ty #284

someone took a pic at the local meet I guess

 

[BMFB]

Re: Rebuilding Ty #284

First autocross of the year. Kicked ass

 

[warmpancakes]

Re: Rebuilding Ty #284

looking a little angry in that picture

 

[BMFB]

Re: Rebuilding Ty #284

im not sure what was going on, I thought the same thing, lol

 

[BMFB]

Re: Rebuilding Ty #284

been driving it around, its been doing alright. I am nearly positive I need a new wastegate controller.

I got a set of BFgoodrich R1 track slicks and traded some injectors for a set of somewhat beatup ty wheels. Tires are nearly 1.5 inches shorter than whats on it now, and what measures out to be just a shave narrower, and 10 lbs lighter per tire. I drove around on them over the weekend and they were very very grippy. Although limits were met at the end of a sanctioned race...

pics!

 

[BMFB]

Re: Rebuilding Ty #284

Took this to the xceed BBQ, lost my keys. Luckily a friend kicked them randomly in the lawn in the park and found them for me. I will be attaching more things to my keys.


Turned over 60K miles on the track at the last auto X

Motors gone nearly 1800 miles without any change in oil pressure or any new noises so I'm pretty happy. Looking forward to the autox this next weekend.

 

[BMFB]

Re: Rebuilding Ty #284

I started having issues with my trans a few weeks ago. The kickdown was acting like it wasn't releasing fully, and thought that it was at least at 1/3rd throttle at all times, making cruising easy difficult. I talked with a few transmission people and they recommended lube gaurd, of whihc I put in and does seem to be improving...although its not 100% so over the winter I'm going to have to split the valve body and unstick the valve. Not sure why its sticking, fluid seems clean...

Although an annoyance, it did not stop me from autox'ing it this weekend. Truck drove well, and with some additional pressure in my R1's (38psi) they seemed to grab just as well as they did at 30lbs, and refused to roll over. I had the second fastest overal time of the day, and that was with only half the runs of everyone else (got there late)

 

[BMFB]

Re: Rebuilding Ty #284

It is noteworthy that I have only the roughest ideas about transmissions and the stuff inside them.

I took the pan off and got a look at the kickdown valve/spring/thing in the valve body. I noted that it was not springy until about 3/8 of an inch of being pressed in.

I found an extra 700R4 valvebody laying in a pile of crap and started playing with it. It still had the kickdown valve thing it it, and it was firm and springy right off the get go...I declared mine broken.

I figured out that a pin held the valve in, and pulled it out. Behind the spool valve thing was a spring, so I went and pulled the one out of the typhoon and that they both seemed fine. I looked deeper into the junk valve body on the bench and could see that behind the first valve, and spring was a second valve and spring that were in 'series' with this first valve and spring. I played with bench valve body and found it to be pretty springy, and noted where its stop point was. I went and looked at typhoon second valve and saw that it was nearly fully depressed....problems

I was able to get at it with a pick and pull it out to where its stop was. It moved freely, and didn't seem caught up on anything...it just wasn't springy for about 2/3's of its total travel...I guessing the spring behind that is no good. I am going to have to pull the valve body off and fix it. I am hoping I do not screw this up.

 

[BMFB]

Re: Rebuilding Ty #284

I managed to pull the valve body off only have one ball valve thing fall out. my technique for doing this was to leave the acumulator and 'auxillary valve body' in the trans so that the gaskets and seperator place would stay in and keep the balls in the trans side where they should be. Once I got all the bolts out it was somewhat of a struggle to get the valvebody free of the trans cleanly without putting any stress on the gasket, but I did it.

Once I got it out I pulled the top pin and pulled the second slider valve out of the body and found that there was no spring behind it...0...as in no trace of one. I looked everywhere to find a piece of that spring and came up empty.

Not knowing what to think I said to hell with it and put the junk body spring in and put it back together on the bench. The ball that fell out was the larger ball so it helped with the searching on where it went (kickdown failsafe checkball they call it) and with soe trans grease I greased it into the area its assigned to.

I put it all back together and used most of the old fluid. To my suprise the truck drives great, shifts like it should and where it should. So...fixed.

 

[BMFB]

Re: Rebuilding Ty #284



Pulled it out of storage today and sprayed it off. Started right up, drove good. Good start to the year

 

[Quickstop [UK]]

Re: Rebuilding Ty #284

Nice save with the trans spring. :tup:

I don't want to say you got lucky but damn, that's lucky

I wish mine was that simple! :rant: :banghead:...

 

[BMFB]

Re: Rebuilding Ty #284

Im hoping the trans thing works out.

I have a new founded interest in this truck. I didn't drive it much last year because I was consonantly working on my other truck.

I am have begun running it on E85 and am waiting to see how that goes. I did this by adding a set of 80's.

I have taken the Alky control kit out.

I bought a new set of tires today. Unfortunately they are not as badass as I would have liked, but they are the only tires my company makes that fit. General Altimax 245/50/16. I kept in mind I still have 4 other set of tires for my other truck that will fit this one, so if I ever want to drag race it or autox it, Im covered. Should be here tomorrow.

I am having the windshield replaced this week. it got wreaked by a rock off of a school bus about 2 years ago.

Should be insured by tomorrow. After which I can continue to re-tune it.

I will post pictures of it soon.

 

[BMFB]

Re: Rebuilding Ty #284

so I decided now that the alky control deal was out of the way I would custom fab a new battery box to fit down farther in the fender. After dicking with it i decided I could get away with running a full sized battery and running the air cleaner where the original coolant res was.

I cobbled this together.

I decided it sucked, but was a good proof of concept.

I made this out of some scrap a friend had.

added a brass fitting for the pcv intake.

hood closes fine, fits great. bought a new filter because mine was so beat. Total investment was $50.

I bought these

I dont know how I feel about looking at them, but they work great. Little extenders.

Mounted the new tires. Drives great. Old tires were starting to crack, and one had a huge scar in it from a badass brake lockup I had about two years ago.

washed the crap out of it in prep for a car show tomorrow.