0
For a 1987 258ci 6-cylinder engine, the EGR valve typically uses an orifice washer numbered 2. It's important to verify this with your specific vehicle's service manual or parts guide, as variations may exist based on engine configuration or modifications. Always ensure you have the correct parts for optimal performance and emissions compliance.
What else can I help you with?
Where is the Fuel pump location on a 79 cj7 258ci?
front of engine passenger side, has gas line in and out
What year did Jeep switch to the serpentine belt on the 4.2 liter 258ci inline 6?
Serpentine Belt 4.2L - 87.2" - 6 Rib - 1981-1986 - Jeep CJ5, CJ7, CJ8, & SJ
What should you try if a 1975 Jeep CJ5 258ci will not start?
I had the same on a 76 cj 258.. try the gas line.. first start at the Carb. pour a little gas in the carb.. see if starts,(be careful) then work your way back to the fuel tank slowly.. 1st Carb.. 2nd then fuel filter (sometimes get clogged), then hoses, then fuel pump, then hose to tank.. What happend on my, an animal bit out a small piece of the rubber hose, the pump was unable to get the gas to my carb without the pressure.. Also try using a electric air compressor (like to fill your tires with 19.99 at any store) to clean your hoses to make sure no clog..
Why does an 86 Jeep cj 258ci with new weber carb timing chain and gears idle and rev perfect but barely has enough power to get moving It feels like driving with the brakes on?
Not to be trite, but you have checked the brakes, haven't you. If so, then the timing appears to be off. If you have set the ignition timing correctly, then it is possible that the timimg chain is off by one tooth. This can be partially corrected through ignition timing, allowing the motor to rev, but there will be minimal power. I know that it is a pain in the A__ becaquse you have to remove the fan, water pump, timimg cover, etc., but when all else fails.... Once you have everything removed from the front of the engine, place cylinder #1 at top dead center, then the marks on the timing gears should be lined up.
Can you swap a 258 amc for 360 how much trouble is it?
It mostly depends on the vehicle it is being swapped in. If the vehicle had a V8 option from the factory, then it can be a very straight forward swap. If you are trying to do this in an Eagle, it'll be a bit more trouble. The motor mounts are different between the I6's and the V8's. But, if you drill an additional hole in the passenger side (IIRC) motor mount you can use the I6 mounts. Now you'll need the proper flywheel or flex-plate to go with the 360 as it is an externally balanced engine. The rest should all relatively bolt-up. If you have difficulty sourcing the proper flywheel or flex-plate, take the original I6 one to your machine shop and have it balanced for the 360ci specs.(232ci &258ci I6 engines are neutrally balanced flywheels and make for good blanks) Hoped this helped. BTW, I personally swapped a 360 into my CJ7 and it was real easy swap.
Is the 1989 Jeep 258ci straight six 4.2 Liter engine fuel injected?
No. From the factory it had a Carter computer controlled carberator that was very problem prone. 2 main problems I saw- if you got on an incline front to back or sideways, it would die- not very desirable when that is when you need to power the most! Also there were 2 (supposed) one-way valves in the exhaust. When they became two-way they spewed exahust garbage directly into the carberator. They were expensive from Chrysler but a better way was plug the holes in the air cleaner & put a filter on them (I believe they are 3/4 inch lines). They are supposed to provide clean air injected by the valve into the exhaust for better emissions. It worked as long as the valves remained one-way. There is a throttle body injection by Howell (about $1200) & a multiport system (about $2200-2500) available but neither is cheap. Many people replaced Carter with a Weber or Holley carb & they seem to run MUCH better. Because of reading & talking to owners about these kinds of problems, I opted for a 1991 Wrangler- the first year fuel injection & the 4.0L HO was introduced. I have had it 10 years & it is a kick-butt motor- especially with a large open exhaust & hi-flo intake. This baby MOVES! Now if I could only stop the rust!
