Slant *        6        Forum
Home Home Home
The Place to Go for Slant Six Info!
Click here to help support the Slant Six Forum!
It is currently Mon Nov 17, 2025 5:59 am

All times are UTC-08:00




Post new topic  Reply to topic  [ 9 posts ] 
Author Message
 Post subject: how much initial timing
PostPosted: Fri Apr 30, 2010 11:18 am 
Offline
4 BBL ''Hyper-Pak''

Joined: Sat Jan 09, 2010 8:26 am
Posts: 43
Car Model:
I've put a "new" 225 in my 68 valiant. It's a stock 225 from 1975 (I think) it has the peanut style head, so without spark plug tubes.
I've also converted it to a two barrel super six intake/exhaust manifold, and made an upgrade to electronic ignition, with a five prong ecu.

What is the best initial timing I should give it at first start up, so I know it will run good?

Thanks,

Antoon

_________________
suffering from severe moparitis


Top
   
 Post subject:
PostPosted: Fri Apr 30, 2010 1:33 pm 
Offline
Supercharged
User avatar

Joined: Sun Nov 03, 2002 9:20 pm
Posts: 13264
Location: Fircrest, WA
Car Model: 76 D100
Oy. What cam are you running? How many degrees advance does the distributor mechanical advance governor allow? How many degrees advance does the vacuum advance pod on the distributor allow? What is your compression ratio? Has the timing mark on the vibration dampener been verified to read true TDC? Has the timing chain stretched?

If you don't know the answers to these questions, I would say ballpark it and run 8-12 BTDC. If it pings, back it off two degrees.

_________________
Casually looking for a Clifford hyperpak intake for cheap.


Top
   
 Post subject:
PostPosted: Fri Apr 30, 2010 11:38 pm 
Offline
4 BBL ''Hyper-Pak''

Joined: Sat Jan 09, 2010 8:26 am
Posts: 43
Car Model:
THe awnser to all your questions. I have no idea.
All I know the 225 is in stock, non-overhauled form, from a 75 van.
The ignition is a stock chrsler one, including an original used five pin ecu.

I've now put it at approximately 12 degrees, which is where the distributor has been all its life, because of the bolt mark on the distributor hold down area.

Antoon

_________________
suffering from severe moparitis


Top
   
 Post subject:
PostPosted: Sat May 01, 2010 3:53 am 
Offline
Turbo EFI
User avatar

Joined: Fri Feb 28, 2003 6:55 pm
Posts: 1046
Location: Strasburg, VA
Car Model:
As I understand it, the only mods you made was adding the Super Six and changing the electronic box to a 5 pin one. If it was a running driving vehicle that the motor came from and you have not disturbed the timing by moving the distributor, I would say just go ahead and fire it up.

Don't know if you recall my oldest son lives near Amsterdam. He is currently on temporary duty by his company at Palma di Mallorca and will return to Amsterdam on 5/5. He said he will be glad to get home!

_________________
65 Dart station wagon slant 6 - now under construction
47 Dodge Custom 4 Door sedan
87 D100 Short Bed slant 6

Retired USAF 1966-1986
Retired US Postal Service 2004-2014


Top
   
 Post subject:
PostPosted: Sat May 01, 2010 9:52 am 
Offline
4 BBL ''Hyper-Pak''

Joined: Sat Jan 09, 2010 8:26 am
Posts: 43
Car Model:
That's when that vulcano in iceland doesn't mess things up again, :wink: lol.

About the distributor, that did not came from this engine, I found that at a swap meet a long time ago. The ecu could belong with that distributor, but I can't remember. I think I'll just leave it at 12 for now. It will pobably fire up, but it might not run very strong, but I'll do some finetuning later.

Any ideas on how to prime the carb with gas before the first start-up?

Antoon

_________________
suffering from severe moparitis


Top
   
 Post subject:
PostPosted: Sat May 01, 2010 12:20 pm 
Offline
Turbo EFI
User avatar

Joined: Fri Feb 28, 2003 6:55 pm
Posts: 1046
Location: Strasburg, VA
Car Model:
Quote:
That's when that vulcano in iceland doesn't mess things up again, :wink: lol.
That volcano made a fine mess of travel in general. My son said trains were booked solid and rental cars were non e to be found.
Quote:
About the distributor, that did not came from this engine, I found that at a swap meet a long time ago. The ecu could belong with that distributor, but I can't remember. I think I'll just leave it at 12 for now. It will pobably fire up, but it might not run very strong, but I'll do some finetuning later.

Any ideas on how to prime the carb with gas before the first start-up?

Antoon
There may be a better way; I would probably pull the plug wire from the coil to the distributor and crank a little bit, checking to see if gas shoots from the carb when the throttle lever is moved. When gas is seen, reattach the coil wire and start it up - watch for any leaks!

_________________
65 Dart station wagon slant 6 - now under construction
47 Dodge Custom 4 Door sedan
87 D100 Short Bed slant 6

Retired USAF 1966-1986
Retired US Postal Service 2004-2014


Top
   
 Post subject:
PostPosted: Sun May 02, 2010 12:21 am 
Offline
4 BBL ''Hyper-Pak''

Joined: Sat Jan 09, 2010 8:26 am
Posts: 43
Car Model:
That's possible, but I want to avoid long cranking because the engine has been standing still for a couple of years, so I think I'll just fill up the bowl vent, and give it a squirt of brake cleaner down the barrels. That way it should fire up quickly and give a good oil pressure.

Antoon

_________________
suffering from severe moparitis


Top
   
 Post subject: Gas in carb
PostPosted: Sun May 02, 2010 8:43 am 
Offline
EFI Slant 6
User avatar

Joined: Tue Sep 05, 2006 9:01 pm
Posts: 331
Car Model:
Sometimes when I run out of gas in my swinger (no gauge happens a few times a year,I always carry a spare gascan) I just pour a tablespoon down the carb. This is usually enough to run for a few seconds and partially fill the float bowl. A little more cranking usually gets going with maybe one more stall out before all is good. If you are firing for the first time you can make a gravity feed like an IV to fill the carb then hook the rubber line back up to the fuel tank line. Or just set a motorcycle tank on a blanket on the roof with enough fuel for a complete break in cycle.

When I broke in my last build ( smallblock stroker) I had the gas line stuck into a red gas can just drinking away like a juice box for a school kid. Astonishing how much gas that sucker drank at 2krpm for 15 minutes!

The spoonful is the easiest. I say spoonful but really I just carefully pour a small splash down the carbs throat.

Good luck

_________________
Image
madam im adam


Top
   
 Post subject:
PostPosted: Sun May 02, 2010 10:46 am 
Offline
4 BBL ''Hyper-Pak''

Joined: Sat Jan 09, 2010 8:26 am
Posts: 43
Car Model:
Ok, Thanks for the tips, very helpful!!

Antoon

_________________
suffering from severe moparitis


Top
   
Display posts from previous:  Sort by  
Post new topic  Reply to topic  [ 9 posts ] 

All times are UTC-08:00


Who is online

Users browsing this forum: No registered users and 12 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB® Forum Software © phpBB Limited