This May Change My Plans... - Toyota Nation Forum : Toyota Car and Truck Forums

***SCT*** · 09-20-2011, 06:22 PM

Once again, my ae92 has broken down. It started off as a slight hesitation while driving for the passed two days. Then yesterday, there was a point where it wantwd to cut off at a red light. Made it home fine. Today, started it up, bad. Put put put put put puta puta put put put puta...

Not the head gasket. Oil and coolant are fine although I found small white bead-like crap on the underside of the radiator cap. Compression tested and all cylinders seems to be within a reasonable range.

Distributor, I spent $200 but I will be returning it. Wasn't the problem. Thought I would've had intermittent sparks even though I saw sparks everytime.

Fuel, I see fuel in the carb going down the venturis. But enough? I'm not sure. My engine has always ran slightly rich.

Timing belt is definately still intact.

Last thing I could narrow it down to which I have had more problems with than anything else, the carburetor.

Here's other thungs I should mention. The air filter is somehow getting sprayed with oil. I see beads of oil droplets ON THE TOP SIDE. Which is weird. There is also a small metallic ping coming from the passenger side (cyl 1). That sound has just arised as well.

So right now, I'm stuck to decisions. As time goes, the decision will slowly narrow down. If it is fixable, nothing major, the car will be as is. If major, a motor swap for a blacktop 20v. Nonetheless, I need a car. Sep and Oct are or may be bum rides months. Nov, I have two cars I can use since my parents are out of the country for Nov. So, Nov is my best closest time for a motor swap if thats the choice. At first, before this problem, my car was gonna go to the body shop for the month but now that may change.......

90 GP · 09-20-2011, 06:53 PM

Poor oil control by piston rings or clogged up PCV valve can cause the oil on the air filter.

eage8 · 09-20-2011, 08:20 PM

or it's just the PCV valve spraying oil into the intake like it's designed to do... I don' think it sprays that high up the intake though...

have you checked your timing? your timing belt might have skipped a tooth or two, the same thing happened to my little brother.

***SCT*** · 09-20-2011, 08:23 PM

I havent visually checked it yet. But the timing belt is new, maybe 6 momths? Ill have to see to it.

EDIT: I am told it could be a bad valve! So, I'll look further into that tomorrow night by taking off the valve cover. If it's nothing major, I'll fix it and be done with. If it's major, I may consider a blacktop swap. Blacktop, because I need parts from it for my silvertop/ blacktop turbo hybrid build.

eage8 · 09-21-2011, 09:17 AM

Quote:

Originally Posted by SCT

I havent visually checked it yet. But the timing belt is new, maybe 6 momths? Ill have to see to it.

EDIT: I am told it could be a bad valve! So, I'll look further into that tomorrow night by taking off the valve cover. If it's nothing major, I'll fix it and be done with. If it's major, I may consider a blacktop swap. Blacktop, because I need parts from it for my silvertop/ blacktop turbo hybrid build.

it could be a bad valve... you should still check the timing though.

I replaced the belt on my brother's integra, and it skipped a tooth a few days later, he got a shop to re-align it and re-tighten it and it lasted a few months then started skipping teeth again. It's probably more likely this is the cause if it's new-ish.

the metallic ping is worrisome though...

sounds kind of like what happened to my 4a-f... I never did find out what was wrong with it :P

Flashmn · 09-21-2011, 04:12 PM

leakdown test would show if a valve is bad, it would also show somewhat on a compression test too.

***SCT*** · 09-21-2011, 11:28 PM

Yea, I need to do a leakdown. Compression test was pretty much in a reasonable range between all cylinders.

I took the valve cover off tonight and there's no visible damage to the cam lobes and the shims/lifters. All of them are nice and smooth, shiny, nothing abnormal.

I took a video with my phone. I'll post them up when I upload them onto fb or youtube.

***SCT*** · 09-24-2011, 01:21 AM

You Tube

There ya go.

Until I find out where or what is making that sound, whether it's fixable or not would determine me fixing it OR Blacktop 20V.

(Yes, I do have a Silvertop 20V but that's my project motor which is all torn apart right now.)

ayang951 · 09-25-2011, 05:52 PM

hrm... sounds like you need a valve job maybe... not too sure, but my last sedan had a problem like that, and it needed the valves to be readjusted, you checked the timing yet? it prolly skipped a teeth as well...

***SCT*** · 10-06-2011, 02:40 AM

Been working. This past weekend, I had a three-day weekend. But it was all rainy and cold. So I finally got around today to look at the timing belt. Here's what I've found: