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10-12-09, 08:42 AM
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#1 (permalink)
| | 250+ Club
Join Date: May 2008 Location: Point Judith Area, RI
Posts: 340
| Still Will Not Idle
WTF - almost about ready to break down and bring her to the shop.
Alright - here's what happend. She's been running fine. Steady Vac. (20+ in Hg.) at idle (700RPM). Was running fine about a month ago. Went to start her the next morning - would not hold an idle at all.
She'll run fine above 1000RPM, with choke closed (with steady Vac). As soon as RPMs drop - idle becomes erractic - Vac. readings are horrible.
So far I've....
Drained/Re filled Tank
Replaced Fuel Filters
Regasketed Carb/Adapter/Intake
Checked Dizzy
Checked Ign.
Checked for intake gasket leak (none)
Running a Weber 38. I've already blown the carb out/cleaned jets several times. WTF! Almost at my breaking point.
Any help is appreciated.
Please.
- jake
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1986 FJ60 35s, 38/38, 6 into 1s, OME, ARB
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10-12-09, 08:47 AM
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#2 (permalink)
| | Steelhead Addict
Join Date: Apr 2008 Location: 907 & 801
Posts: 1,040
| How long has the weber been on there? fuel pressure is good?
__________________ May 85' fj60 - " TONTO" SOA bunch a cool stuff, 400 plus horses!
April 85' fj60 "DUSTY" metalic brown. fully stock 90K
2001 Land Rover Disco 2
Skidoo XP 800 164" (my chairlift) 
Wow, look at all the expensive **** in your sig line. Perhaps you should make the damned thing run, reliably, before dragging it thru an offroad catalog with a magnet attached! After all the work it took to install all that, I'd thinhk a couple of water leaks should be minor! ~ TEXX (IH8MUD member) 10/09 | |
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10-12-09, 08:49 AM
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#3 (permalink)
| | 250+ Club
Join Date: Mar 2005 Location: CT
Posts: 444
| Sounds almost like a ballast resister problem.
Starts fine but will not run.
I would check the coil again, I think they have an internal resister.
__________________  Joe
TLCA # 6363
Yankee Toys
Gotham City Land Cruisers
FJNortheasters
Northeast Association 4 Wheel Drive Clubs
Tread Lightly - Tread Trainer
National Off-Highway Conservation Council
1977 FJ55 - for fun (x2)
1979 FJ40 - the wife's
1986 HJ60 - my dd
2007 FJC - my second dd? | |
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10-12-09, 09:00 AM
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#4 (permalink)
| | 250+ Club
Join Date: May 2008 Location: Point Judith Area, RI
Posts: 340
| ...
I really don't think that it's a ballast problem - will check however.
Fuel pressure is good - 3/3.5 PSI per Weber specs.
Everything is pointing towards a vacuum leak - since choke is closed to compensate for bad idle mixture. I haven't found any leaks using the aerosol method. Checked all vac. caps as well - everything is ok.
WTF.
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--SUPPORT YOUR LOCAL COMMERCIAL FISHERMEN!--
1986 FJ60 35s, 38/38, 6 into 1s, OME, ARB
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10-12-09, 09:01 AM
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#5 (permalink)
| | 250+ Club
Join Date: Nov 2004
Posts: 827
| I'm not sure the 60's utilize 'ballast resister' any where in ign ckt.
How long have you had the 60 w/ weber? Other than truck, what changed since last week (e.g., weather turned cold . . .need more choke / richer mix ?)
Have you tried (might need a buddie to feather gas pedel) squirting carb cleaner...little spritz here & there...at various 'joints' in intake route (carb to mani, mani to head, etc) . . .small rev up is indicative of a vac leak.
Does intake mani have the crack that many 60's have ? If so, crack may have grown (step change) and too much leakeage....
- - - -
I would think:
If it just dies: fuel problem
If it lopes, hunts, stutteres and stammers so to speak:vac leak.
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Nov 85 FJ60 94 FZJ80
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10-12-09, 11:45 AM
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#6 (permalink)
| | 250+ Club
Join Date: Mar 2007 Location: Columbus, OH
Posts: 384
| I had an idle problem recently where it was idling real low around 500 RPM. It was driving me nuts as well. I pulled the number one spark plug, which happened to be a bosch platinum spark plug and it was as black as midnight with soot. I replaced all six with nice new champions, parts store did not have the NGKs in stock, and my idle problem went by by. I have to use the choke about one pull until it warms up but other than that dirty spark plugs was what was giving me problems.
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Stock 87 FJ60
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10-12-09, 05:28 PM
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#7 (permalink)
| | Forum Regular
Join Date: Jan 2009 Location: Jerome, AZ
Posts: 23
| Check the EGR valve. They can get stuck easy. Put a longer vac line on it, and apply some vac by mouth while tapping on the EGR below the vac hat. If you hear a chunk rattle down, you will know that's what it was. | |
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10-12-09, 05:47 PM
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#8 (permalink)
| | 250+ Club
Join Date: May 2008 Location: Point Judith Area, RI
Posts: 340
| No EGR sys. I'm thinking it could possibly be PCV valve. Not sure - will report tomorrow.
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1986 FJ60 35s, 38/38, 6 into 1s, OME, ARB
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alaska60
Tonto
