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#1 Posted : Tuesday, 11 July 2006 6:58:33 PM(UTC)
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Hi all,

I have a 1970 HT with a 186 and i want to have it running unleaded fuel. Adding lubricant is not an option. I'd like it done properly.
What steps do i need to take to get this done. I'm happy to do all the work myself, but not sure what needs to be done.
Is there a manual out there for this?



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#2 Posted : Tuesday, 11 July 2006 9:16:25 PM(UTC)
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Hi,

Before you do the hard work, make sure you are aware that there are a few different ways to add lubricant, including:
- Squirting a little bit from a bottle every tank refill.
- Automatic mixers that sit in the engine bay and insert lubricant int
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#3 Posted : Tuesday, 11 July 2006 9:23:16 PM(UTC)
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Cool, thanks for the info.
When you say "half job" or "full job", does it really matter which one to go with?
Yes, when i said im doing the work myself, only what i can do. (trying to keep costs down to a minimum)


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#4 Posted : Tuesday, 11 July 2006 9:46:04 PM(UTC)
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Hi Guys.

To answer the original post, to convert to unleaded & I assume you mean standard (91 RON) unleaded, 2 things are needed, firstly hardened valve seat & secondly recurve the dissy to suit the lower octane fuel, to reduce pinging. As Jason says m
If at first you don't succeed, just call it Version 1.0
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#5 Posted : Tuesday, 11 July 2006 9:59:50 PM(UTC)
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Thanks Dr. Terry

Good to hear the different ideas and knowledge when it comes to motors.

Being raised around unleaded motors all my life wasn't sure on correct stages to do the changeover.

ozjason Offline
#6 Posted : Tuesday, 11 July 2006 11:32:18 PM(UTC)
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Lunchbox - the "half job" will stop the valve recession, so you won't be damaging your engine by not using lubricant. But the engine won't perform quite as well as if you do the "full job". So if all you want to do is stop recession, just fix the head.
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#7 Posted : Wednesday, 12 July 2006 11:59:28 PM(UTC)
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I'm not planning on doin a huge number of k's.
It'll be for cruisin in and those sunday drives to the beach.

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#8 Posted : Thursday, 13 July 2006 9:55:53 AM(UTC)
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I've seen the drip feed lubricant setup totaly screw up three engines so far.
This is what I've found anyway:
Over time the oil baked itself on top of the intake valves and built up and up until a large chunk fell off into the valve seat and stuck the v
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#9 Posted : Thursday, 13 July 2006 10:05:41 AM(UTC)
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Oops!! forget that last part, its a LOW ASH oil, thats what gas engines need. Sorry :-)
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