1991 BFN engine rotation? Which dizzy
Printed From: CorrectCraftFan.com
Category: Repairs and Maintenance
Forum Name: Engine Repair
Forum Discription: Engine problems and solutions
URL: http://www.CorrectCraftFan.com/forum/forum_posts.asp?TID=30147
Printed Date: October-09-2024 at 1:22am
Topic: 1991 BFN engine rotation? Which dizzy
Posted By: Sam Hamm
Subject: 1991 BFN engine rotation? Which dizzy
Date Posted: June-07-2013 at 12:38am
| Im in the process of getting rid of this protec setup and going with a distributor. I know skidim makes a kit that says its for reverse and standard rotation motors. My question is how do I tell which one my motor is? Its a 1991 BFN with the 454 v drive. |
Replies:
Posted By: TX Foilhead
Date Posted: June-07-2013 at 1:51am
| What does the tag say? Should be one bolted to the intake and another one on the bellhousing. |
Posted By: hotboat
Date Posted: June-07-2013 at 9:10am
|
Mine was reverse, what rotation prop is on it? ------------- Brian |
Posted By: Sam Hamm
Date Posted: June-07-2013 at 10:35am
|
Model: PXRK-WR-R10T Firing order: 12756348 Not sure on the prop. How do I find out? |
Posted By: Sam Hamm
Date Posted: June-07-2013 at 10:41am
| The motor is backwards of course, but when it's running the pulleys are spinning left, which means the flywheel is spinning right. Correct? So that's reverse rotation? |
Posted By: hotboat
Date Posted: June-07-2013 at 11:03am
|
Correct, reverse rotation, front of motor ccw ------------- Brian |
Posted By: TRBenj
Date Posted: June-07-2013 at 11:04am
|
Yep, that's a righty. ------------- |
Posted By: Sam Hamm
Date Posted: June-07-2013 at 12:34pm
| Any idea why skidim kit says for RH or LH, but if you go to buy a distributor itself it specifies? I'm just trying to get my ducks in a row before I paid $600 for a kit. |
Posted By: Waterdog
Date Posted: June-07-2013 at 12:39pm
|
Have ya looked into Davis Unified Ignition ? (DUI) 2 wires EASY to install, a lot less cash. ------------- - waterdog - http://www.correctcraftfan.com/diaries/details.asp?ID=3896&sort=&pagenum=2&yrstart=1978&yrend=1978" rel="nofollow - 78 Ski Tique |
Posted By: Sam Hamm
Date Posted: June-07-2013 at 12:51pm
| That's actually the one I'm wanting to go with but want to make sure it will work because they only make them for standard rotation according to summit. |
Posted By: hotboat
Date Posted: June-07-2013 at 12:59pm
|
There is no timing chain in that motor, they run gear to gear so it has a regular rotation cam with a different firing order ------------- Brian |
Posted By: TRBenj
Date Posted: June-07-2013 at 1:08pm
|
I would caution saying that a RH 454 has a "regular rotation cam"... though it does spin opposite the crank. Its still a reverse rotation cam (meaning its a cam meant for a reverse rotation engine). Ive also heard it called "standard rotation reverse fire". Either way, what it means is that the distributor gear does not need to be cut the opposite way for a RH 454... same dizzy works for both LH and RH engines (I have a DUI on our '79 BFN with a RH 454). ------------- |
Posted By: ny_nautique
Date Posted: June-07-2013 at 1:17pm
They do make them for reverse rotation. See http://www.performancedistributors.com/marinedui.htm" rel="nofollow - here . ------------- - Jeff 1999 Ski Nautique |
Sam Hamm wrote:Posted By: TRBenj
Date Posted: June-07-2013 at 1:45pm
Yes they do... but still not applicable to the RH 454 (no gear swap needed). ------------- |
Posted By: Sam Hamm
Date Posted: June-07-2013 at 1:52pm
| So I can or cannot use a standard rotation DUI distributor ? |
Posted By: Waterdog
Date Posted: June-07-2013 at 1:55pm
|
I put a DUI in a gear drive reverse rotation 350(GM) in my Tique. same dissy gear as STD rotation. Around $400- ------------- - waterdog - http://www.correctcraftfan.com/diaries/details.asp?ID=3896&sort=&pagenum=2&yrstart=1978&yrend=1978" rel="nofollow - 78 Ski Tique |
Posted By: TRBenj
Date Posted: June-07-2013 at 2:04pm
------------- |
Posted By: Sam Hamm
Date Posted: June-07-2013 at 9:37pm
| Thank you! I over read what you were saying. |