I finally finished getting my 89' GL together after an engine swap and a bunch of rehab, put around a 1000miles on her, and started to hear a sound from the motor. Its not audible from the cabin, only when your standing over the motor and revving. I suspect that one of the rod bearings is just starting to go out, but before I begin to rip her apart (again) I wanted to see what someone who had delt with this thinks.
A little background - recently swapped the oil pump, timing belt/tensioner, adjusted all the valve clearances, and replaced the head gasket with a new, MLS one. I checked my oil pressure, and it running in a normal range. I would describe the noise as more of a fast, rapping sound as opposed to a knock at this point, so I would suspect its still very early stages. There is NO sign of the sound at any RPM until the motor is FULLY warm, then above around 2200RPM, the sound starts. The noise increases with engine RPM. Now, I know that the oil pump chain tensioner can wear out, and create free play in the chain, is there any chance that this is the problem, not a rod knock? I don't know how that would sound, or if it would even make a sound. Any input would be very welcomed!! Here is a link where i'm running the engine, the sound can be tough to hear in the video, but its only at higher RPM like I said.
Drop the pan, check the bearings, from the bottom. This can be done in about 1-2 hours depending on skill and equipment. You may be able to get by with new bearings, but beg, borrow, buy a micrometer to make sure the crank is round. Don't just plastigauge it. I tried that too many times to only have to pull and grind the crank.
However your sound is not too horrific yet, so you might get lucky.
deegore: I slept in my 2 door driving from AZ to MN. Some front seats that fold flat would be necessary to really get comfortable.
Dec 10, 2017 17:59:40 GMT -5
justytrudeau: FWD means you don’t have to worry about any problems that can come up with the AWD system. AWD is clutch in snowier climates, but the pre 90’s models have carbeuraters instead of being fuel injected. Carbs can cause some issues in the winter time.
Jan 14, 2018 15:47:29 GMT -5
justytrudeau: Anyone put LED's in their instrumental panel? I have to remove the whole dash to get to 'em, figured it'd put off having to do it again by a few years.
Jan 23, 2018 22:18:20 GMT -5
justytrudeau: Are they interchangeable?
Jan 23, 2018 22:18:34 GMT -5
Bredmirror: Can a Suzuki Gti engine fit into a Gl manual Justy?
Jan 24, 2018 8:36:48 GMT -5
Justy1200cc: bredmirror, if you do it you would need the suzuki transmission. I think it's searchable on the forum for more details
Jan 30, 2018 22:25:04 GMT -5
bredmirror: Thats what Im planning to do. However, if the engine and the transmission won't fit then Im just gonna upgrade the stock engine and get a tubo kit for it.
Jan 31, 2018 4:28:16 GMT -5
justytrudeau: Anybody bought aftermarket center caps for their wheels?
Feb 16, 2018 1:37:50 GMT -5
Justy1200cc: I bought a pink sti badge off wish. it was pretty big and when I found a real sti the logo was even smaller than the justys
Feb 21, 2018 0:07:08 GMT -5
1991SubyJustyNotStarting: Engine not starting
Feb 22, 2018 22:14:37 GMT -5
justytrudeau: Just replaced my headlights with LED's as well as all my dashboard instrument cluster. None of them work, and now my taillights have gone out too. Likely wiring issue, eh?
Feb 23, 2018 22:12:08 GMT -5
theboypip: i was in a crash over winter, despite driving 20mph, black ice still got the better of my '92 first gen. i've been trying to find parts for weeks now and found my self here. i need a LHS lower arm but cant find any that match the undamaged one on my car! p
May 15, 2018 13:47:56 GMT -5
theboypip: steering arm and track rod end for LHS (it's a RHD car) are needed too
May 15, 2018 13:48:47 GMT -5