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Topic: UPDATE>>FINISHED...The Sport needs help..... (Read 4536 times) previous topic - next topic

UPDATE>>FINISHED...The Sport needs help.....

Reply #15 –
Will do on the compression check.The clutch in it right now isn't the Autozone clutch,it's a stage 2 that was installed with the second 5 speed.The AZ clutch is sitting on the work bench as a backup.I'll double check the pushrods (actually I didn't even check them),and just pull them out one at a time and see what I can see before I end up possibly pulling the intake and heads.I'll do the compression check first.I hope to know something soon.The engine (at idle) have a pretty good (bad) shake to it.Not cool.No clattering or loud noises,just shaking.
'88 Sport--T-5,MGW shifter,Trick Flow R intake,Ed Curtis cam,Trick Flow heads,Scorpion rockers,75mm Accufab t-body,3G,mini starter,Taurus fan,BBK long tube headers,O/R H-Pipe, Flowamaster Super 44's, deep and deeper Cobra R wheels, Mass Air and 24's,8.8 with 3.73's,140 mph speedo,Mach 1 chin spoiler,SN-95 springs,CHE control arms,aluminum drive shaft and a lot more..

UPDATE>>FINISHED...The Sport needs help.....

Reply #16 –
I JUST remembered something....when we were starting the Bird yesterday,it didn't even start like it usually does.There was plenty of power,it was as if the engine needed a little more ooooomph to get going,then,it started right up.Maybe valves..
'88 Sport--T-5,MGW shifter,Trick Flow R intake,Ed Curtis cam,Trick Flow heads,Scorpion rockers,75mm Accufab t-body,3G,mini starter,Taurus fan,BBK long tube headers,O/R H-Pipe, Flowamaster Super 44's, deep and deeper Cobra R wheels, Mass Air and 24's,8.8 with 3.73's,140 mph speedo,Mach 1 chin spoiler,SN-95 springs,CHE control arms,aluminum drive shaft and a lot more..

UPDATE>>FINISHED...The Sport needs help.....

Reply #17 –
It was a hundred degrees yesterday,and I was really hot and tired.I' think I'm having delayed memory,like remembering the details in a bad dream.
'88 Sport--T-5,MGW shifter,Trick Flow R intake,Ed Curtis cam,Trick Flow heads,Scorpion rockers,75mm Accufab t-body,3G,mini starter,Taurus fan,BBK long tube headers,O/R H-Pipe, Flowamaster Super 44's, deep and deeper Cobra R wheels, Mass Air and 24's,8.8 with 3.73's,140 mph speedo,Mach 1 chin spoiler,SN-95 springs,CHE control arms,aluminum drive shaft and a lot more..

UPDATE>>FINISHED...The Sport needs help.....

Reply #18 –
I feel for you bubba,The shake at idle says something.
run codes to you never know.
Old Grey Cat to this.88 Cat, 5.0 HO, CW mounts, mass air, CI custom cam, afr165's, Tmoss worked cobra intake, BBK shorty's,off road h pipe, magnaflow ex. T-5,spec stage 2 clutch, 8.8 373 TC trac loc, che ajustables with bullits on the rear. 11" brakes up front. +

UPDATE>>FINISHED...The Sport needs help.....

Reply #19 –
Alright,a small update.....The rubber in the balancer that holds it together is really squeezing out.I just bought a new one and will have it on in a little while.I'll let everyone know what happens after that.Stay tuned.............
'88 Sport--T-5,MGW shifter,Trick Flow R intake,Ed Curtis cam,Trick Flow heads,Scorpion rockers,75mm Accufab t-body,3G,mini starter,Taurus fan,BBK long tube headers,O/R H-Pipe, Flowamaster Super 44's, deep and deeper Cobra R wheels, Mass Air and 24's,8.8 with 3.73's,140 mph speedo,Mach 1 chin spoiler,SN-95 springs,CHE control arms,aluminum drive shaft and a lot more..

UPDATE>>FINISHED...The Sport needs help.....

Reply #20 –
Another update...I installed the new balancer (it was REALLY bad),and it made a small difference.The Sport still has what feels to be like "missing",but isn't.I think I may have a fragged valve.It's running well enough that I'll bet one,maybe two valves are affected.We're going to do a compression check tomorrow and check the timing.If the valves are bad,I'll pull whichever head they are on (or both depending on what we find(,and run the heads to the machine shop and have the affected valves replaced then re-install everything and start all over again........without messing it up this time.LOL.More news as it happens.
'88 Sport--T-5,MGW shifter,Trick Flow R intake,Ed Curtis cam,Trick Flow heads,Scorpion rockers,75mm Accufab t-body,3G,mini starter,Taurus fan,BBK long tube headers,O/R H-Pipe, Flowamaster Super 44's, deep and deeper Cobra R wheels, Mass Air and 24's,8.8 with 3.73's,140 mph speedo,Mach 1 chin spoiler,SN-95 springs,CHE control arms,aluminum drive shaft and a lot more..

UPDATE>>FINISHED...The Sport needs help.....

Reply #21 –
did you check vac?
spray carb cleaner around the intake or other vac areas?

mounts also,,,,,?

UPDATE>>FINISHED...The Sport needs help.....

Reply #22 –
IF it has bent valves, it's a result of insufficient P to V clearance... Unless you go with notched pistons, less cam or different heads, it will happen again...

UPDATE>>FINISHED...The Sport needs help.....

Reply #23 –
IF it has bent valves,I'll go ahead and re-assemble it,and start to gather parts for a 306.I'll start looking for a replacement block and new pistons,etc.I will be a little more careful,though.
'88 Sport--T-5,MGW shifter,Trick Flow R intake,Ed Curtis cam,Trick Flow heads,Scorpion rockers,75mm Accufab t-body,3G,mini starter,Taurus fan,BBK long tube headers,O/R H-Pipe, Flowamaster Super 44's, deep and deeper Cobra R wheels, Mass Air and 24's,8.8 with 3.73's,140 mph speedo,Mach 1 chin spoiler,SN-95 springs,CHE control arms,aluminum drive shaft and a lot more..

UPDATE>>FINISHED...The Sport needs help.....

Reply #24 –
too much speculating,,

do you want me to mail you my compression tester,, to borrow?

so here goes an idea,,,

if you do have a bent valve then you will have one or both valves not closing,, thus you will read some comression but not has high.  A compression tester has a one way check valve so thats why it will hold its reading  but does not tell you anything about the valve seats.

do this.......
remove valve covers
rotate each cyl to tdc with both valves closed.
stuff a vac / garden hose or the like into the plug hole.
double check that you are on tdc and the push rod rotates free
blow into the hose by mouth or by air compressor

if the piston goes down, your good.

if the piston does not go down and you hear air, it will be in transit one of 4 directions.
you will either hear air coming out your throttle body (bent intake valve)
or
you will hear air coming our your exhaust manifold (bent exhaust valve)
or
you will hear air coming out your oil dip stick hole. (busted ring or piston top)
or
you will hear air coming out your head(s) / block / intake (cracked head/block/intake)

UPDATE>>FINISHED...The Sport needs help.....

Reply #25 –
My friend is bringing his compression tester tomorrow.Pulling the heads really isn't THAT big of a deal.We're going to give the Sport a real look tomorrow.I appreciate the tips and help.I'll post an update on this tomorrow evening.We're testing around 7:30 pm.
'88 Sport--T-5,MGW shifter,Trick Flow R intake,Ed Curtis cam,Trick Flow heads,Scorpion rockers,75mm Accufab t-body,3G,mini starter,Taurus fan,BBK long tube headers,O/R H-Pipe, Flowamaster Super 44's, deep and deeper Cobra R wheels, Mass Air and 24's,8.8 with 3.73's,140 mph speedo,Mach 1 chin spoiler,SN-95 springs,CHE control arms,aluminum drive shaft and a lot more..

UPDATE>>FINISHED...The Sport needs help.....

Reply #26 –
Did a compression check,and the number 5 cylinder had no compression.It appears that the valve is bent.I'm pulling the head tomorrow early morning and I'll know for sure.The push rods seem fine.I have the upper intake and left valve cover off.It shouldn't take more than 15 or 20 minutes to pull the head.I'm getting up early and getting the Mobil 1 oil and antifreeze for the car,then,at 8:00,off to Autozone for gaskets.The owner of the machine shop sad he can have the head done in short order for me.COOOOOOL !!!!Anyway,I'll try to grab a few pics and pass on the info as it happens.
'88 Sport--T-5,MGW shifter,Trick Flow R intake,Ed Curtis cam,Trick Flow heads,Scorpion rockers,75mm Accufab t-body,3G,mini starter,Taurus fan,BBK long tube headers,O/R H-Pipe, Flowamaster Super 44's, deep and deeper Cobra R wheels, Mass Air and 24's,8.8 with 3.73's,140 mph speedo,Mach 1 chin spoiler,SN-95 springs,CHE control arms,aluminum drive shaft and a lot more..
 

UPDATE>>FINISHED...The Sport needs help.....

Reply #27 –
thats progress,,,,,,,,,,

You really aught to put air in the cyl to determin whats wrong and plan out parts for the fix.

undo #5 rockers all the way and let em flop to the side,, dont worry about TDC or anything.

shove air into the cyl, if you have air coming out the throttle body or exhaust, its a valve.

If you hear air coming out the dip stick  or any vac fitting, its a compression ring(best case)

if your piston shoves down, there isnt a problem,, (but obviously there is on number 5.)

Zero compression is a very bad sign man.  Even with a cracked compression ring, you would get 50 to 100 psi.  Something is so jacked up that the one way check valve in the compression tester cant even capture 10psi.  That tells me you may be looking into a piston hole soon.  I hope the damage is small and its just a valve.  Hope the valve guide is not burred / dinged.  Even if it is, you could probably live with a tiny bit of damage on the end of the guide.

UPDATE>>FINISHED...The Sport needs help.....

Reply #28 –
oh,, btw,,
check into the thicker headgaskets like i used on my engine,, keeping in mind your raising the profile of your heads a tiny bit and its only noticeable when you sit the intake down and wonder where all that slack came from cause your intake seems to have play side to side.  I just laid the silicone a little thicker and made my own rear and front intake gaskets.

Tom once told me about copper gaskets that serve you well for a reuseable application and i think he said they are thick as well.  You will gain in PTV area doing this.

So, your running e7 heads, flat tops. e303 cam and 1.6 rockers?  Is there some sort of error in this combo?

The way i see it, we should never be hitting our pistons, these 5.0's should not ever be interference engines.

UPDATE>>FINISHED...The Sport needs help.....

Reply #29 –
I'm going out in a few minutes to pull the head.I think a bent valve isn't seating.I'll know in about 30 minutes.Regular reports as things happen.Hopefully the rings will be alright.I'm about to find out.
'88 Sport--T-5,MGW shifter,Trick Flow R intake,Ed Curtis cam,Trick Flow heads,Scorpion rockers,75mm Accufab t-body,3G,mini starter,Taurus fan,BBK long tube headers,O/R H-Pipe, Flowamaster Super 44's, deep and deeper Cobra R wheels, Mass Air and 24's,8.8 with 3.73's,140 mph speedo,Mach 1 chin spoiler,SN-95 springs,CHE control arms,aluminum drive shaft and a lot more..