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#12552 10/24/2004 5:32 PM | Joined: Dec 2003 Posts: 103 Member | | Member Joined: Dec 2003 Posts: 103 | In the process of instslling a Stovebolt engine Co. mini HEI on a 235. Question: Should the bottom flange of the didtributor sit flush against the block???
Thanks | | |
#12553 10/24/2004 6:27 PM | Joined: Feb 2004 Posts: 29,742 Kettle Custodian (pot stirrer) | | Kettle Custodian (pot stirrer) Joined: Feb 2004 Posts: 29,742 | YES!
There should be a thin paper gasket under the bottom of the flange, but if there's a gap at all, the oil pump drive isn't lined up with the drive tang on the bottom of the distributor shaft. Make sure the drive gear is meshed with the camshaft in the proper place to get the firing order right, and tap the starter until the oil pump drive drops into place. Then set the ignition timing, and you're good to go.
Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
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#12554 10/25/2004 11:00 AM | Joined: Dec 2003 Posts: 103 Member | | Member Joined: Dec 2003 Posts: 103 | Thank you for the reply. After I posted went back out to shop and figured it out. It fired right up.
New question: What should my dwell be with the HEI? With a points distributor it is suppose to be 26-33 degrees. However, @1000 rpm, the max I can get is 20 degrees. | | |
#12555 10/25/2004 1:03 PM | Joined: Aug 2004 Posts: 47 Member | | Member Joined: Aug 2004 Posts: 47 | Electronic dizzies do not have a dwell. Dwell is the time that the points are closed. No points, no dwell. | | |
#12556 10/25/2004 1:16 PM | Joined: Jan 2000 Posts: 1,586 Extreme Gabster | | Extreme Gabster Joined: Jan 2000 Posts: 1,586 | Be careful with those mini HEI conversions.Your distributer shaft has to have a small clearance up and down after installation.
On the stock dist,the body slides into a clamp, the clamp is a little flexible,so the dist body and shaft aren't forced against the oil pump.Because of this stock set up, the machining of the block deck where the distributer is located wasn't critical.It can vary on different blocks.A guy here had a ground up oil pump and distributer because of lack of clearance.
Gently install the dist,push down by hand, make sure the tang on the end engages the oil pump.If there's a gap between the flange and block,use a shim of some sort.Don't just sock it down with the reatainer. Also make sure the dist gear meshes with the cam gear properly. | | |
#12557 10/26/2004 8:25 AM | Joined: Apr 2000 Posts: 499 'Bolter | | 'Bolter Joined: Apr 2000 Posts: 499 | Electronic ignitions do have dwell. [img] http://ourworld.compuserve.com/homepages/JET_AV8R/Vision/Ignition/hei.gif[/img] The NPN transistor shown, does the same thing points do. When the the transistor is turned on, current flows through it and the coil just like when points are closed. The difference is that you don't adjust the dwell. This page will tell you all about the different ignition systems commonly used. A good refresher read for all of us. web page
'67 GMC 3/4 292 4spd
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