76 bus 2000cc...gas to use.?

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76 bus 2000cc...gas to use.?

Postby olebugman » Tue Dec 03, 2013 9:42 pm

Unleaded or leaded??
Thanks a lot Jim
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Re: 76 bus 2000cc...gas to use.?

Postby vdubjim » Tue Dec 03, 2013 10:24 pm

you can find leaded?
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Re: 76 bus 2000cc...gas to use.?

Postby olebugman » Tue Dec 03, 2013 10:41 pm

dont know yet but will try to find it somewhere if need to...per my bil--he found it awhile bac for his 62 vette....if not needed ...good!!!
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Re: 76 bus 2000cc...gas to use.?

Postby vdubjim » Tue Dec 03, 2013 11:24 pm

Nobody I know runs it. I never have.
I'm sure the myths About shortening life could be true, but to me 5000 miles off 75000 miles is no biggie.
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Re: 76 bus 2000cc...gas to use.?

Postby derbug » Wed Dec 04, 2013 1:53 am

I would at least use ethanol free gas...which is not hard to find....
but will cost 25-30 cents more a gallon, which amounts to about $2-$3 dollars
more for a tank full.....for bug tank
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Re: 76 bus 2000cc...gas to use.?

Postby olebugman » Wed Dec 04, 2013 7:38 am

will use ethanol free...thanks jim
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Re: 76 bus 2000cc...gas to use.?

Postby vdubjim » Wed Dec 04, 2013 8:40 am

Yes definetly ethanol free!
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Re: 76 bus 2000cc...gas to use.?

Postby olebugman » Wed Dec 04, 2013 6:58 pm

Thanks guys... hey vdub - is there a forum on site to sell my parts bus and parts???
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Re: 76 bus 2000cc...gas to use.?

Postby vdubjim » Wed Dec 04, 2013 11:39 pm

The for sale section.
But like I asked you before how much? ;)
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Re: 76 bus 2000cc...gas to use.?

Postby vwlimoguy » Thu Dec 05, 2013 10:42 pm

Used to be you could get an additive lead substitute that boosted octane and kept the valves from pounding out. Don't know if it's available anymore. I've never had valve issues wIth modern gas on original engines. Bearings always crap out first.
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Re: 76 bus 2000cc...gas to use.?

Postby olebugman » Fri Dec 06, 2013 12:01 pm

Thanks luke.....jim
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Re: 76 bus 2000cc...gas to use.?

Postby derbug » Fri Dec 06, 2013 2:36 pm

GunkĀ® MotorMedicā„¢ - Lead Substitute
http://www.gunk.ca/CAT_M5012C.asp

$4.09 at O'Reilly Auto
Did a little research on line....really does not say
whether goes in oil or gas ?
Guess have to get one in hand and read :geek:
the label

http://pure-gas.org/
above where to buy pure gas, no meth
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Re: 76 bus 2000cc...gas to use.?

Postby olebugman » Fri Dec 06, 2013 2:45 pm

ok and thanks
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Re: 76 bus 2000cc...gas to use.?

Postby derbug » Fri Dec 06, 2013 3:02 pm

FYI, seems like the unleaded gas has been around since
sometime in the very early 70's...I know in 1971 was hard to
find....like CNG is today....try to make a trip across the USA with
a CNG car... :roll:
I think I remember a tech article where Gene Berg discusses
the heads and unleaded gas and there should not be a problem
with unleaded gas and the bug heads.....but that was before
corn-hole-le-o methanol.....Which I am speculating if Gene
was still alive, he would not recommend the E-10 for everyday usage
or any usage in the VW.
Even today new car manufacturers do not recommend the new E-85,,,
voids warranties.

When I perform or hand cut my valve seats(when doing a valve job)
the exhaust seats are very hard.....takes a long time to re-surface
and a lot more pressure....as compared to the intake seats.
Even when working on 68-70 single port heads....still hard seats.

I really can not remember the seat hardness on 67 and earlier... :?:
or speculate on the 40hp heads....been too many years ago

The greatest wear factor is the exhaust valve guides, which usually are
silicone- bronze.....which even back in the days of leaded gas....
I replaced a lot of exhaust guides....in engines that had lots of miles
on them....with leaded gas.

I do not ever remember replacing an intake valve guide for wear....

This is just my experience off the top of my head....
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Re: 76 bus 2000cc...gas to use.?

Postby gimpy60 » Fri Dec 06, 2013 5:00 pm

I think, but I don't know, that the wear on the exhaust guides is mostly from the heat, not actually the gasoline that is used.

But I also think a lot of the controversy with the unleaded changeover was a lot of bullshit. It's going down the same road with corn skweezins. I personally don't run the shit in any of my vehicles.

But I'm an old dawg, & you know about them.


JP etc. etc. 8-) 8-)
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Re: 76 bus 2000cc...gas to use.?

Postby olebugman » Fri Dec 06, 2013 5:16 pm

Thanks to both of you.... gimpy60 and derbug...i think now... I will use kerosene.....i used it many years and never ruined anything...just kidding....jim ps...u guys are both smarter than me!!!!
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Re: 76 bus 2000cc...gas to use.?

Postby derbug » Fri Dec 06, 2013 8:41 pm

[quote="gimpy60"]I think, but I don't know, that the wear on the exhaust guides is mostly from the heat, not actually the gasoline that is used.

Correct: the exhaust valve heat is the major wear to it's guide.
When surfacing the exhaust seat...one has to be careful on the width
and position on the exhaust valve contact with it's relative seat....that is why we lap
the valves and check when machining the seats....with a visual
on the valve
1.Too thin...or to thick...seat/valve contact : seat/valve runs too hot
2. Too close machined contact to crown or base of valve...again valve and seat runs too hot

takes time to correctly machine: position and thickness, but longevity is the reward
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