bstone

Check for spark and air flow. Then compression test.

There is insufficient information for a meaningful answer. Can you be more specific? Is it cranking or do you hear nothing when you turn the key? What have you checked so far? Did it ever start before?

Also getting a new code, in addition to the TPS code: P1700 - Throttle Position Sensor Circuit Malfunction (A/T)

Went to the junkyard this morning and got the entire intake manifold (including all sensors and fuel injectors) for $75 off another EJ25. Wow. I replaced the IAC Solenoid & Valve and the TPS, but i am still getting a TPS code, even tho i replaced the TPS. the idle when i turn on the car is at 4.5 RPM. way too high. any suggestions?

While at the junkyard getting an IAC Solenoid Valve I got a referral to a machine shop in the area. Stopped in and they said they would do each cylinder head for $50. $100 total for the heads. Not bad. Sadly, they don't do engine blocks, so I need to find a different place for that.

Buckets? Unfamiliar with that part.....

I am looking for the camera, but it seems to be missing. I agree that the burn on the cylinder wall is interesting. Pictures when I can find the camera. Tomorrow I'll take off the left side cylinder head. I didn't see any shims. When I bring the heads to the machine shop should I bring the entire head? Anything else?

Right side head is off! I wasn't prepared for how easily the head would come off, but I caught it. The head gasket came right off, as well. Below is a picture of each side. Sorry if the quality sucks, I used the camera on my laptop. How do they look? One of the piston walls has a line of burn on it about a half inch wide and going down. The other is smooth to the touch and feel. I am pooped now and tomorrow will do the left side.

Right side cam sprockets and shafts out. Working on head bolts now.

That worked. Right side cams off.

Valve cover is off. No impact here- this is a basement job with hand tools. I'll try to stick a wrench into the valve flat spot. Wish me luck.

I am in the basement and have a 17mm socket on the bolt holding one of the four cam sprockets on. However when I try to turn the bolt the cam rotates with it. How do I remove the bolt without turning the cam?

Check on the Subaru OE gaskets. I'll make an order of those. I'll get the head, crank and cam seals. Here's the next question- what should I do with the block? It's got 220k miles on it, but wasn't burning oil or knocking before the HGs blew. Should I begin to tear it down? I'm going into the basement now to take the cams off.

GD, Fantastic reply! Thanks! Alright, so I have to remove the cams. I take is they are held on by a bold or nut and will slide right off when removed? Maybe I'll spray them down with a little liquid wrench. No rocker arms. Good to know! How many head bolts are there total? Should I get new bolts when reinstalling or reuse the old ones? Also, please suggest a cam seals.

A few months ago the EJ25 in my 97 Legacy OBW blew the HGs. I bought a used engine and put the blown one in my trunk. Now it's sitting in the basement and I finally have time to begin taking it apart. Goal: Remove the heads, send them out for machining and order new OE HGs (4 layer, indestructible ones). Question 1: How do I remove the heads? I understand I remove the valve cover and then remove the rocker arms. Are the head bolts right under the rocker arms? Question 2: Does anyone know of a good machine shop in the New Haven, CT area? Question 3: Is there a suggested source for the OE HGs, or will any OE online dealer do? Question 4: Anything else I should consider doing while I am "in there"? Replace the pistons? I plan to put on a new rear main seal, PCV plate, valve cover gaskets, cam seals, oil pan gasket. When I reassemble the engine I'll also put on a new water pump and timing belt.

You do know what anecdotal evidence is, right? Your own experience is anecdotal. Other peoples' experiences are also anecdotal.

Like I said, anecdotal evidence.

The word "FelPro" does not exist on that page. It's intellectually dishonest to link to a page about faulty headgaskets and claim they are FelPro, yet the page in question has no such statement.

So is any supposition that FelPro makes an inferior product. Due to what? Anecdotal evidence?

Like I said, FelPro is far superior to what originally came with our engines. it'll last a lot longer.

The FelPros are a much higher quality than the original ones on the engine. It's fine.

If by "soon" you mean in 100,000 miles, then good. THis engine will have 300,000 on it.

Recently installed FelPro HGs. 3 layer.

Where on the trans? Is it by the VSS?

Yes, only the slack is removed. The cams are not being rotated, only the slack has been removed. This Inhibitor Switch is interesting. Where is it located and is it easily replaced? I just so happen to have another EJ25 engine that is complete and I can take parts off of. I am going to take off the IAC solenoid/valve off it and put it on mine and guess I should swap the Inhibitor Switch as well.