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Still haven’t seen you post what your vacuum measurements and current timing settings are?
Best carb upgrade for '78 2F...?
- Thread starter Rochfort
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Still haven’t seen you post what your vacuum measurements and current timing settings are?
- Thread starter
- #22
It's guesswork, by feel, no notches.
Three guys, no body's gotten it right. At least not for long.
.
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- Joined
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Well, EFI isn’t a magic bullet that just fixes cars that don’t run right.
If you don’t know what your vacuum and timing are you will struggle even harder with EFI
If you don’t know what your vacuum and timing are you will struggle even harder with EFI
cstav86
SILVER Star
Caution with EFI - if you have any issues EFI will potentially magnify them. Vacuum, exhaust leak, timing. You’ll end up real disappointed after spending a bunch of money. Get everything dialed, then go EFI. It is fantastic at high elevation and off camber situations.
sadovnik
SILVER Star
Matt is asking for you to provide just a tiny bit of information about your current setup so we can better help you.
When you connect a vacuum gauge, at idle, you should be getting something in the neighborhood of 17 to 22Hg. Are your numbers within that range?
He is also asking you for the distributor timing setting. The Toyota FSM specification states that it should be set to 7 degrees, but that is based on the engine being at sea level. For example, at my altitude (6,000ft) it has to be set around 12 or 13 degrees. You can get that piece of information from a timing light.
That said, if your mechanic can't provide you with both of those numbers, you need to find one that can.
When you connect a vacuum gauge, at idle, you should be getting something in the neighborhood of 17 to 22Hg. Are your numbers within that range?
He is also asking you for the distributor timing setting. The Toyota FSM specification states that it should be set to 7 degrees, but that is based on the engine being at sea level. For example, at my altitude (6,000ft) it has to be set around 12 or 13 degrees. You can get that piece of information from a timing light.
That said, if your mechanic can't provide you with both of those numbers, you need to find one that can.
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- Thread starter
- #26
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/this\
Can also confirm I’ve run up to 11k feet with the same jetting as sea level…and with all the advantages that a properly rebuilt and tuned Asian ON A PROPERLY TUNED ENGINE can give you.
One of the other guys on the run had a Holley with all the trick stuff. Another had a Rochester. By trail’s end, they were both running on fumes and grabbing their gas cans. I still had a third of a tank.
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mattressking
10 digits to freedom
/this\
Can also confirm I’ve run up to 11k feet with the same jetting as sea level…and with all the advantages that a properly rebuilt and tuned Asian ON A PROPERLY TUNED ENGINE can give you.
One of the other guys on the run had a Holley with all the trick stuff. Another had a Rochester. By trail’s end, they were both running on fumes and grabbing their gas cans. I still had a third of a tank.
I love a tuned Asian……
mattressking
10 digits to freedom
Here’s a great example of a person who lives at the same elevation and drives heavily with an aisan carb….
Yep. I live at 9,100 and drive higher than that on a pretty regular basis. Aisin all the way.
sadovnik
SILVER Star
Indeed. Judging by the beautiful pictures he posts, I'd say @cbmontgo lives around Divide or Woodland Park and that's around 9,100' asl. Great trails around there.
- Thread starter
- #34
- Thread starter
- #35
? I get that you guys love your Aisins but mine's 45 years old and it's warped./this\
Can also confirm I’ve run up to 11k feet with the same jetting as sea level…and with all the advantages that a properly rebuilt and tuned Asian ON A PROPERLY TUNED ENGINE can give you.
One of the other guys on the run had a Holley with all the trick stuff. Another had a Rochester. By trail’s end, they were both running on fumes and grabbing their gas cans. I still had a third of a tank.
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Here’s a 65 year old warped Aisan carburetor that I repaired yesterday.
Most warpages are repairable…with patience. From reading the very on-point posts from @cruisermatt and @mattressking, we may have identified the root problem. Landcruiser ownership is sometimes a test of patience.
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- Thread starter
- #38
"Sometimes"?
Too bad you don't do brakes .
Spruced up after 25 years in the hay barn with pigs and goats. Still easier than rebuilding my Aisin ....
.
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mattressking
10 digits to freedom
Old vehicles (especially ones not passed down through family with known history) are best for folks that have patience, a little money, and no sense.
If truly learning how to revive something (anything outside its known service life) and doing it with actual focus and quality is a point of pride, then you'll do well. If not, sell it...
So sack up and learn how to fix it correctly or move on.
If truly learning how to revive something (anything outside its known service life) and doing it with actual focus and quality is a point of pride, then you'll do well. If not, sell it...
So sack up and learn how to fix it correctly or move on.
I think its a "lot" of money needed.