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Showing results for tags 'cylinder'.
Found 8 results
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Hi all, EJ251 shortblock, EJ25 D heads, STI gaskets I'm getting an unbalanced shake/hesitation from 1800-2500 rpm. I can't effectively accelerate until rpms are above 2500. Taking off from a stop, the car feels bogged down. Plugs, Wires are less than a year old. Fuel pump/filter/strainer within 6 months. Coil and ignition module are within spec according to an FSM that I read. There was a vacuum leak with the purge solenoid under the intake manifold. It was not operating. Before I found that, my STFT, and LTFT indicated (at idle) 3-10%, and 18-25% respectively. After plugging the vacuum line I have the numbers seen in the photo below. I just did a leak-down test. According to the gauges, I'm within 10% for each cylinder. ALTHOUGH, I do hear/feel air escaping through the intake, and the oil filler tube. I followed this for instructions: I have also done multiple compression tests. For cylinder #3 is 225 psi, the remaining cylinders are between 210 and 215 psi. Can one cylinder being higher than the rest cause an unbalancing/misfire/poor low-end acceleration? Even if the numbers are good, the fact that I have air coming through the oil filler tube and intake, does this suggest the motor is shot? Check my timing again? Is there any change in timing instructions when mating an EJ251 with 25D heads? The heads are closer together, and the bolt holes for the intake manifold needed to be filed down a bit in order to properly bolt it onto the long-block. I've done a smoke test in/around the intake/intake manifold/hoses etc, and don't come up with anything. Thanks for the help, Greg
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Hello again. I ha e a ea81 1.8 engine sitting in my driveway. I removed this engine because i could not get cylinders 2 and 4 to fire. I did replace the engine head gaskets and cleaned the valves in headers and put it back together. When i installed engine back in car i was not able to get it to fire correctly. I have new wires spark plugs rotor and cap and nogo. I did pull the wires from cylinders 2 and 4 and did see a spark in them. Obly reason i know these two cylinders are not working is because the engine will have a terrible shake to it and by plasing my hand below the header were exhaust goes only one side was hot. Could it be that i have a bad distributor even tho i see sparks coming from wires 2 and 4? Thanks.
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2001 Subaru Outback H6 3.0 150k miles The issue is that cylinders 1, 3 and 5 (the same side) are throwing a misfire code. I can notice the misfire at idle and the check engine light will flash when it's occurring. There's also was a code 0491 in the freeze-frame, using my cheapo OBDII scanner. If I clear the codes I will still experience the missfiring at idle but when the MIL starts blinking , as in the case of a misfire, I can give it 200-300 RPMs or more and hold it there (or simply drive away) and the MIL will go away. The traction control "VDC OFF" indicator comes on and off simultaneously with the MIL during these instances. I notice no issues with acceleration,cruising or shifting, nothing indicates a loss of power. I have owned two of the EXACT same vehicle (only difference was color) that had a new chain and related componants and hg job so I know how the EZ30 should feel like. I have referenced the following links but there seemed to be an unclear closure on the two issues: http://www.ultimatesubaru.org/forum/topic/82331-check-engine-light-blinking-after-timing-chain-tensioner-replacemen-fixed-now-p0420/ http://www.ultimatesubaru.org/forum/topic/129688-misfiring-3-of-6-cylinders-in-a-2001-outback-h6/ Swapped around coils and O2 sensors and replaced plugs but no change was noticed. Took vehicle to Subaru Dealership and they were stumped. They suggested tearing down the head/removing timing cover and inspecting from there. The vehicle isn't worth that much so I was wondering if I could get your help. Have you guys ever come across anything like this ended up being another reason than the dreaded decision I face? Not generally a fan of additives but I will probably try seafoam in case it is a carbon buildup issue. Subaru performed various tests and everything checked out good. They also did compression test that isn't on their report and they said everything looked good around 150psi. I intend on doing a leakdown test as soon as I am able. This is Subaru's word (not much news really): Anyway, I understand I am in effect resurrecting old posts with this post but it has me and Subaru stumped. Thank you to anyone who cares to comment! -
I have an 02 outback LL Bean 6 Cylinder 3 liter, turbo charged. I have a misfire on 6 Cylinder. Which cylinder is 6? -
Hello all. After doing a full engine out reseal and clutch replacement on my 1990 loyale I'm having trouble getting my motor dialed in. It fires up and runs but it's VERY rough at low rpm. The timing is not dead on but pretty close. When I pull the plugs on cylinders 1 and 3 they look a little sooty but not bad. Cylinder 4 is very sooty/wet and show now signs of spark. Cylinder 2 is sooty and doesn't show much sign of spark. While the motors running I can pull the number 4 wire from the disty and it makes no difference. If I pull the number 2 wire the rpm fluctuates slightly but not much of a change. If i pull wires 1 or 3 the engine dies. ADDITIONAL INFO: After running for a bit the passenger side of the engine is hot to the touch while the driver side is cool. After the engine had been running a while the exhaust was glowing red. (maybe unburned fuel from cylinders 2 and 4??) Here's what I've tried: -Swapping spark plugs -new wires -new coil -new cap and rotor Any ideas? I'm going to the parts store here in spokane to rent a compression tester. but I'm pretty stumped Thanks! -K -
I have a 1985 ford f250 with a 300 bored .60 over and the timing marks on the harmonic balancer do not relate to TDC on the number 1 cylinder. The marks are aligned with TDC on number 5. How can this be?
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Thanks as always for the help. Love these forums. On my 1999 Legacy Outback (2.5L DOHC), I recently replaced my timing belt & components after a slipped tooth resulted in poor compression and misfires on cylinders 1 and 3. Before the timing belt replacement I got 90 and 80 psi compression on cylinders 1 and 3, respectively. Now I get 210 and 60 psi respectively. (On cylinders 2 and 4 I got 190 and 180). I detailed this info in this thread. A friend advised a leakdown test next. I put Cylinder 3 in TDC, held it in place with a socket and breaker bar, dialed input pressure up to 75 psi and got 72-73 on the other gauge, i.e. approximately 3-4% leakage. I could hear a quiet hissing through the oil fill cap. 1) Do these numbers seem right---i.e. are the results of my leakdown test consistent with the compression test? Want to make sure I'm doing it right. 2) Assuming it is right, this means I have worn piston rings or cylinder walls, right? -
Long story short, read the title. I'm worried that this might be yet another damned expensive repair. Some background below. Hoping to get some advice from seasoned Subaru owners. Me: I'm a poor grad student, at least one year from graduation. Must have a car. If this one dies I've gotta go find another. Hoping to keep this one, since I just spent a bunch of time and money replacing clutch and doing front end work. My car: 1999 Legacy Outback, 2.5L DOHC, think that means it's an EJ25D motor. I bought it in 2011 at 198,xxx miles. Now at 227,800. Previous owner told me he replaced head gasket and some other major work---really wish I'd written it all down. I replaced ignition coil, plugs and wires (2 summers ago). Wires look OK visually at the moment. Just a few weeks ago, I did my first major project---replaced clutch, rear main seal, oil separator pan. I removed entire exhaust system in order to do the repair. Dropped transmission, rather than pulling engine. The problem: My exhaust started getting loud in the last week or two. Suspected exhaust leak. Also, the check engine light came on yesterday, indicating P0301 & P0303 (cylinders 1 & 3 misfire). Took a look under the car this morning and realized a welded hanger hook had broken off and left a hole behind. I picked up some fiberglass exhaust repair tape and patched the hole. (Perhaps not relevant to the misfires, but including it just in case). I took a 20-minute cruise per the instructions on the exhaust repair tape. On my drive, CEL flashed & came on again. Codes were P0301 and P0303 again, plus 2 more codes: "P0301 P" and "P0303 P". (What's that extra "P" mean?) I did some reading on these forums. Since the 2 misfires happened simultaneously, I suspect it's not the plugs or wires. Also, I've seen some talk about timing belts related to this kind of problem. I do not know when my timing belt was last replaced, so it was at least 30k miles ago (i.e. previous owner). Finally, this thread indicated that it could be "burned valves." I tried the "dollar bill trick" someone recommended on that post. Seems like the behavior of the bill depends on where & how I'm holding it... but I'm afraid I "failed" the test. :-( I . (below). Based on these symptoms, have I definitely got burned valves? Could the "dollar bill" behavior be caused be a less severe problem? What should I do next...? Get a mechanic to diagnose further? Can I do this repair on my own? Given the age of the car, and the time & $$$ expense of a repair, what would you do in my shoes? Thanks for any advice. Cheers. http://youtu.be/vSVGv702cmU
