Questions tagged [rings]
8 questions
6
votes
1 answer
Do my new oil rings have an excessive gap?
Today I measured the new piston rings I will use while rebuilding my old Skoda Estelle engine.
Skoda Set
They are new from the Skoda factory (or that's what the box says), but they were manufactured in the late '80s! :) They are in pristine…
Aram Alvarez
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4
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1 answer
Pistons ordeal: more pistons problems; two issues in one question
So, still having problems rebuilding this old engine (Skoda Estelle 120, 70's, RWD, rear mounted engine). First of all: getting new parts is out of the question since I have no access to those. So I need to get this done with whatever (s)crap I have…
Aram Alvarez
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3
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1 answer
Replace the Engine, rebuild, or just put on new rings
I've got a 2006 Mazda MPV that ran without oil for a few minutes and the engine locked up. The engine is noisy and weak but runs okish when cold. Once up to operating temp it visibly burns oil and will die at stop lights. Oil pressure is fine. …
Robert S. Barnes
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Is it really necessary to resurface cylinder and substitute piston?
I believe this is common in motorcycle maintenance, I have heard in some places that, once you get the piston outside the cylinder there is no way back, you need to resurface the cylinder and get a new piston and seals, can I trust this?
Rodrigo Alencar
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Can I remove head off 2002 Altima 2.5 and just hone cylinders to help improve compression
Have a 160,000 mile Altima 2.5 blowing oil. Compression is around 120 across the cylinders. Valve seals fine.I do not want to spend much on this old vehicle. Takes me less than hour to remove head and get to piston walls and not taking pistons out…
Randy Nelson
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2 answers
How are compression rings lubricated?
My question relates to the lubrication of cylinder walls and piston rings. It is my understanding that pistons in cars consists of 3 rings; two compression rings and the oil/scraper ring.
As far as I've read, the cylinder walls are only lubricated…
Erik
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possible to replace rings in i4 from the bottom?
I'm checking out a 2007 Nissan Sentra 1.8 inline 4, 170k miles, for a friend. I have never witnessed this vehicle while running so here's what I "know."
It takes like 20 minutes of cranking before it will start. It runs for just a second then dies…
seizethecarp
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Can missing two oil changes cause piston rings to crack?
Car is 4 cylinder Astra. !.4 engine no turbo charge. Last service 8500kms. Missed 2 services, rings in number two piston failed at 44000kms. Oil level always maintained. Car only driven on sealed roads. Would missing 2 services cause rings to…
