Car Jettering

 Created by: tothefloor
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 Posted: Jul 8, 2019 01:40PM
 Edited:  Jul 8, 2019 02:13PM
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Quote:
Originally Posted by tothefloor
That was a mess. need to go to Idaho to get gas  re-adjusted the idol to 1 1/2 turns open.  Will try everything Malsal 
Are you speaking of the jet on a HS carb?
That is not the idle it is the mixture adjustment.


If in doubt, flat out. Colin Mc Rae MBE 1968-2007.

Give a car more power and it goes faster on the straights,
make a car lighter and it's faster everywhere. Colin Chapman.

 Posted: Jul 8, 2019 11:00AM
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That was a mess. need to go to Idaho to get gas  re-adjusted the idol to 1 1/2 turns open.  Will try everything Malsal 

 Posted: Jul 8, 2019 10:54AM
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Thanks  malsal I’ll work on that.

 Someone else suggested tuning it up because the last thing I screwed with was the idle on the carburetor. I thought that I readjusted that but it sounded good.  Sorry I can’t read my posts on the phone either sideways or vertically. 

 Posted: Jul 8, 2019 06:07AM
 Edited:  Jul 11, 2019 06:38AM
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Could be electrical. Have you got a tachometer if so is the needle bouncing around when it happens?
Also years ago i worked on a Mini that had a similar issue and the positive cable from the battery was touching on the exhaust system and grounding out, check the ground wires on the engine while you are at it.
Points or electronic distributor, if points the condenser could be going bad.
Mechanical or electrical fuel pump, check the fuel pump pressure you need 2.5lbs minimum with carbs.


If in doubt, flat out. Colin Mc Rae MBE 1968-2007.

Give a car more power and it goes faster on the straights,
make a car lighter and it's faster everywhere. Colin Chapman.

 Posted: Jul 7, 2019 12:07PM
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 Well it wasn’t either of those. I change the fuel filter and yes there was a piece of filter paper floating around in the fuel filter. Then of course I had to adjust the idle because I change that the other day. I have a hit 44. I’ve adjusted the idle from fall closed then back open one and a half turns. Still doing it any ideas?? 

 Posted: Jul 6, 2019 07:15AM
 Edited:  Jul 6, 2019 07:18AM
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CA
It might be dirt in the carb fuel bowl, especially if you have a HS type carb. The dirt gets into the tube to the jet and when you turn around it gets swished aside until you park the car and it settles again. A failed fuel pump generally stays failed. Low carb oil wouldn't fix itself until you actually replenished the oil.

.

"Hang on a minute lads....I've got a great idea."

 Posted: Jul 5, 2019 03:06PM
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When I needed to refill my carb oil I had the exact  same symptoms. Really made it a bucking bronco. Easy fix. 

 Posted: Jul 5, 2019 02:14PM
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 I took the mini out last night. After about a block it started shuttering. By chattering a man that I was moving back-and-forth in the seat because every time I stepped on the gas it was cutting out. I turned the car around and went back home and all the sudden it was working correctly so I went on a long ride. I came home for a minute and left again and the car started shuttering real hard again. I flipped a U-turn real hard and it stopped doing it and started running correctly. I took it out again with no problems but I’m thinking that maybe I need a new fuel filter or a new fuel pump. Any ideas??

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