11 replies to this topic

[JeepGirl]

ok, i've had this problem for awhile. go to drive the car, doesnt matter what gear i'm in, i give it gas and it bogs out then roars back to life. it doesnt actually stall or anything. i'll push the gas in about an inch, it'll hookup for a sec, then it'll lose power for a sec then it'll catch up and get moving again. i've checked my throtle cable, its not binding and the deflection is spot on.

its like when i go WOT or even half throtle it'll catch and seem like its going to accelerate, then it just doesnt accelerate. idles fine, has plenty of power and everything. just under acceleration its like its getting flooded out for a split second. its almost gotten me mowed over by traffic on a few occasions and i'd like to get it fixed.

new plugs, cap and rotor, oil change about 2000k ago. my plug wires are in so-so shape. my battery cables on the other hand are rather frayed and damamged. rebuilt carb. new intake mani. new linkage. new K&N air filter. vacuum lines are all good. i ALWAYS run 91 octane now, car seems to respond better with it. the timing seems ok, only ever timed it by ear.


any suggestions?

[3gencivic]

when you say bog, what is it doing. is it stalling or sputtering is it jsut sitting there doin gnothing.

i have had mine were it would for the first sec or so tha tyou step on it do a bog and it was my idle wasnt 100% after it went to a shop for 60bucks it ran fine. it was somethin gto do with the a/f and idle.

and yes i thought my idle was great before it seemed to be once the car drove.

[JeepGirl]

yep, thats about whats its doing. idles great, just the very split second i apply the gas it'll bog, not stall or sputter, just bog. it wont do it if i tap the gas a couple of times before leaving a set of lights or whatever.

hrmm a/f mix you say? that might be it, to much gas not enough air and prolly a weak spark as well.

i'm going to change my battery cables this weekend, i'll have a peek at the a/f mix and see if it cant be adjusted a tad.

thanks

[GIFF]

i was going to say check the dizzy cap and rotor, sparks and whatnot, because thats what happened to me.... But you already had that done....hhmmmmm.

[JeepGirl]

i was going to say check the dizzy cap and rotor, sparks and whatnot, because thats what happened to me.... But you already had that done....hhmmmmm.

<{POST_SNAPBACK}>

yep, those were some of the very first things i did when i bought the car.

i was thinking the timing might be a bit off because we set it by ear, but it seems to idle perfect and i'm hesitant to mess with it without having a timing light.

i was thinking it might also be related to my very old/frayed/hodgepodge looking Pos/Neg cables as i have been having troubles with them as well. i do have decent replacements, but i have no room in our garage to move around right now so it'll have to wait till i can get a shop day.

i did just get my hands on a nice Chiltons manual covering all honda models from 83 on up. way better than my Haynes one and i only paid $8 for it at the flea market, now i get to use it to figure out my a/f mix problems.....

[kevsCRX]

Could be your fuel filter when is the last time you cahnged it?

[Surestick]

When you rebuilt the carb the accelerator pump was rebuilt too?
Probably a stupid question but...

[JeepGirl]

i changed both fuel filters when i tuned up the car.

i didnt rebuild it, i bought it that way. i bought the intake mani and rebuilt carb from a parts/import repair shop, they had rebuilt the carb themselves and when the car came back all smashed up they parted it out. so i couldnt tell you for sure, but this place is very reputible.

[badpenny]

JeepGirl, when you find out what it is, keep us informed, I am in the process of rebuilding my motor, I am beginning to forget all the small ticks, it used to have. Like the half-stall, then take off like a rocket.

[eldo]

Set the timing first before you start changing anything. If it still bogs, then try turning the idle mixture screw out 1/2 a turn.

[rockershaft]

Check the accellerator pump. With the engine off remove the air cleaner and looking down into the carb open the throttle lever. There should be a stream of gas shoot into the carb.

When you open the throttle the manifold vacuum goes to zero and can't pull the fuel resulting in a flat spot. The accellerator pump overcomes this by squirting fuel in to cover this flat spot.

The little rubber diaphrams on these pumps will harden and split over time and must be replaced.

[JeepGirl]

very good info everyone.

thats what i was thinking about doing Ed. just have to get my hands on a timing light...