wrist pins

[6-FITZ]

I don't really know what's going on w/ old girl SHO. But it don't sound real good. I think I have wrist pins going and I need to know how much time do I need to borrow. I know some engines run forever w/wrist pin knock(gm 2.5 liter). Just hope yamahas are similar. I had the oil pan off a couple of weeks ago and the pan did not have any metal flake or any other strange particles. Please help if possible.

 

[texas hot rodder]

Well sounds like the longer you wait, teh more expensie it will be, if you want a 3.2 in good shape, e-mail me, Got a nive one, ready to drop in. Other than that, I think that if one really wants to get something done, anything can be done in a weekend. I would not drive it with a knock, unless you turboT is more streetable than my GN wink

 

[sdpatt]

The SHO will usually fail a bearing at the large end of the connecting rod. There are some pictures in the Open Forum of some bearings. If you are experiencing "rod knock," replacement of the rod bearings is neither too expensive or too difficult (from the many posts I have read of folks who have done this job).

 

[RTStabler51]

WTF Terry. I don't remember ever hearing wrist pin knock on a SHO, sure its not the rods/mains???

 

[luigisho]

You could always drop the oil pan and check the bearing gap with plastigage to be sure. The time to access the rod bearings really depends on how easily the y-pipe and starter come off. If the studs/nuts on the y-pipe are in good order and the same for the starter mounting hardware it shouldn't take too long to do the bearings. However, these items are usually special order from either Ford or NAPA which would be a few days. Is this a daily driver?

 

[6-FITZ]

it only makes that noise when the engine throttle is snapped open when the rpms are dropping back to idle. Hope that makes sense.

 

[6-FITZ]

plus I was always under the assumption that rod knocks knock all the time , particularly under load. My car does not do that, does the noise when there is no load, like deceleration.

 

[6-FITZ]

Het ryan i did not know you moved. Email me w/ 411

 

[snowwind1990]

Going wayyyyy off the line here,,doesn't that sound like the cats rattling?
The decelleration part is what caught my eye thumbs_u shrug
Ma Ma M

 

[RTStabler51]

Terry,

when I had my 93, the only time it really knocked was off throttle and startup (I believe when the oil pressure dropped).

As someone said, I yank the oil pan off and check out the rod bearings. I believe that would be your culprit right there. Its really not a hard job. Ypipe, Starter, and pan to get to them (then of coursre the girdle and windage tray too).

BTW whats your email addy? I'm [email protected] or RTStabler51 on AOL IM.

6-FITZ:
plus I was always under the assumption that rod knocks knock all the time , particularly under load. My car does not do that, does the noise when there is no load, like deceleration.

 

[billh]

Coming from someone who has blown up a few engines, (mostly at 8000+ RPM) that really doesn't sound like a wrist pin. I think i'd look elswhere.
On my SHO, I started the engine up one morning cold and heard what I thought was a rod knock. Upon restarting, I didn't hear it. Next morning, I turned off the radio and opened the door with my foot holding down the door switch to defeat the chimes. Sure enough, the classic, didn't last for more that a micro second, rod knock. The car had 117,000 on it at the time, and the pan needed to be re-sealed so we did the rods. Old bearings LOOKED horrible, but putting a bearing micrometer on them showed that the wear was less than .001. I think I would look at the rods first.
Good luck
Bill

 

[6-FITZ]

Well, upon further investigation I'll have to agree w/ you guys about the noise. Now just what is involved w/ changing the bearings in my car. I know you guys said it was easy but really, how easy is it. I plan on doing the bearing change this weekend if all goes right.

 

[6-FITZ]

also ryan my email is [email protected] give me a holla on this bearing change job. Thanx.

 

[6-FITZ]

I hate to keep posting about the same thing but this thing is bummin me out. I hear the noise between 2-3k rpm. I changed the oil, no flake. I just hope that I caught it in time so the crank isn't toast. And it does not have an oil light come on. There is light at the end of the tunnel.

 

[RTStabler51]

Terry,

I don't recommend doing this but I had no other choice at the time. When mine started knocking, i drained the oil and put 50w in it (yes straight 50 and it absolutely HATED IT!) I had to drive it for a week, MAYBE a total of 20 miles.

That weekend I got my bearings and oil pan seals from FPS, and we started on it. It wasn't bad at all.

all that is really involved is

1)remove ypipe
2)remove starter
3)remove oil pan
4)remove windage tray
5)remove girdle
6)Pop off rod caps and your at the rod bearings
7)the mains weren't that hard at all, there is a thrush bearing (I think thats what it is called) and my buddy replaced that while I was cleaning parts while he put the mains/thrush in.

You will also need a oil pickup tube gasket too. I'd hit chuck up for one of those, IIRC ford only ets them in packs of 5-10. Also pick up some plastigauge. I'd say your crank is more than likely ok.

Let me know if you need anymore info.

and remember I did mine in Sept 00, but I remember most of it. thumbs_u

 

[6-FITZ]

Thanx Ryan for all the info. Hey I got the regal runnin for a little while before the t/c checked out She did not do too bad. It ran a spinning and sideways all over the place 12.5 @113. That was w/ 93 oct and 17-18 lbs of boost. Got to get some tires and suspension work on this thing. It dynoed at 350rwhp and 476rwlbft all on 93 oct. and 17 lbs. of boost. not even a beed of sweat. thumbs_u thumbs_u thumbs_u Love these TRs. Who needs a V8

 

[blewbyu]

I gotta agree with the last post, sorry to get off the subject of SHO's. How bad of hook up were you having to get that 12 slip. I am running 30 over,lots of internal motor work, lots. 17-22 #'s. my power is upwards of 500 rwhp, but have not taken her to the dyno/track yet. My old best slip was 11.3 in the 1/4. thumbs_u fun as could be..

 

[RTStabler51]

schweet! An AF Officer I deal with has one of htose too, I think he said his was runing high 11s. Glad it didn't go BOOM. Where'd you dyno it at? That new place?

6-FITZ:
Thanx Ryan for all the info. Hey I got the regal runnin for a little while before the t/c checked out She did not do too bad. It ran a spinning and sideways all over the place 12.5 @113. That was w/ 93 oct and 17-18 lbs of boost. Got to get some tires and suspension work on this thing. It dynoed at 350rwhp and 476rwlbft all on 93 oct. and 17 lbs. of boost. not even a beed of sweat. thumbs_u thumbs_u thumbs_u Love these TRs. Who needs a V8

 

[Off Road SHO]

6Fitz,
Just because you're decellerating (sp?) doesn't mean there is no load on your engine. Your engine trying to spin the tranny or your tranny trying to rev up your engine both put load on the rod bearings, it's just that with the former you have gas and air exploding and the latter just trying to compress air ( and a little gas).

Had an old 69 Ford Galaxie 500 with a 302 with over 300,000 miles on it. Last 20,000 of it was with 5 broken wrist pins that we found when we finally tore it down.

Check out my long winded reply on this topic.

http://www.shoforum.com/cgi-bin/ultimatebb.cgi?ubb=get_topic;f=17;t=004679

Tom

<small>[ December 06, 2002, 07:57 PM: Message edited by: ThomasDooley ]</small>

 

[shojuan]

6-FITZ:
I hate to keep posting about the same thing but this thing is bummin me out. I hear the noise between 2-3k rpm. I changed the oil, no flake. I just hope that I caught it in time so the crank isn't toast. And it does not have an oil light come on. There is light at the end of the tunnel.

Your cranks probably just fine. Remember, the bearings can be considered a normal wear item, the crank is not. Sure, most people will get rid of a car long before it will get new bearings. Regardless, the bearing inserts were designed to take the brunt of the wear, and to be replaced when they wear out. I'm sure if you go through with it and replace them this weekend that you'll be a happy camper come next week and you'll feel confident that your car is just fine.

beer

Rick