Left Hand Harmonic Balancer
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=1285
Printed Date: October-05-2024 at 8:32pm
Topic: Left Hand Harmonic Balancer
Posted By: Jim_In_Houston
Subject: Left Hand Harmonic Balancer
Date Posted: March-03-2005 at 10:18pm
|
Well I just discovered why timing my engine gave me strange results. I kept thinking number 1 spark plug was not number 1.
I am pulling down my 289 (today) to replace the cam and heads. I discoverd today that my harmonic balancer is for a standard rotation engine. In other words the ATC and BTC timimg marks are on the wrong side of the TDC mark. WOW! I must have been running it 12 deg. retarded. No wonder I couldn't get my RPMs up. The previous owner said he had the engine rebuilt. Anyone ever encounter this? I hope it did not come from CC this way. Your thoughts will be appreciated. Anyone have a RH rotation harmonic balancer for a SB Ford, 6-3/8" dia.? ------------- Happy owner of a '66 and a '68 Mustang |
Replies:
Posted By: kenny g
Date Posted: March-04-2005 at 11:33am
|
jim i see no need to replace a good balancer.
use a caliper and transfer the marks to the other side of the TDC mark.[see page 30 in the book] i'm not sure about my mustang,but the chrysler in the barracuda has an inspection hole and is timed from the flywheel at the rear of the engine. ------------- kenny g |
Posted By: Jim_In_Houston
Date Posted: March-04-2005 at 12:15pm
|
Thanks Kenny. What book are you talking about? I have not seen an inspection hole in the Ford (Interceptor). I will look again today (when work resumes). ------------- Happy owner of a '66 and a '68 Mustang |
Posted By: kenny g
Date Posted: March-04-2005 at 12:47pm
|
the interceptor marine engine manual 1969.
i sent a copy to keith months ago.isnt it in the reference section ? the chrysler has the timing hole back at the flywheel jim,thats why i said i wasn't sure about my mustang. either way i see no reason why u couldn't transfer those timing marks on the balancer. ------------- kenny g |
Posted By: Jim_In_Houston
Date Posted: March-04-2005 at 12:57pm
|
I see no reason I cannot transfer the marks either. In fact I will look for a timing tape that glues to the balancer. Mr. Gasket makes them. I'll just put it on backwards.
I am sure if a rotating object is balanced in one direction it will also be balanced rotating in the other direction. Balanced is balanced. So, I suspect the only difference in RH and LH balancers is the timing marks. Thanks again Kenny - I will look for the manual. ------------- Happy owner of a '66 and a '68 Mustang |
Posted By: kenny g
Date Posted: March-04-2005 at 1:06pm
|
EXACTLY JIM !
my manual says 1969.it covers models 165/190/210/302cid let me know if u need a copy  ------------- kenny g |
Posted By: Jim_In_Houston
Date Posted: March-04-2005 at 1:10pm
|
Sure, I would like a copy. Is it too large for your to email? If so I will give you an ftp address for one of my web sites - you can ftp it.
Otherwise, email it to jim@electricaltrainingusa.com Thanks!!!!! ------------- Happy owner of a '66 and a '68 Mustang |
Posted By: Jim_In_Houston
Date Posted: March-07-2005 at 9:12pm
Problem solved. Here is a pic of the balancer with the timing tape applied "backwards". The earth is back on it's axis. now. ------------- Happy owner of a '66 and a '68 Mustang |
Posted By: Siveck
Date Posted: March-16-2005 at 10:22pm
| Was the crankshaft bolt left or right hand thread on your reverse rotation motor? |
Posted By: Stan C
Date Posted: March-17-2005 at 2:47am
|
I recently rebuilt a reverse rotation 351W and the crankshaft bolt was a standard right hand thread. Hope this helps. Stan C ------------- Stan C |
Posted By: Jim_In_Houston
Date Posted: March-17-2005 at 1:18pm
|
Siveck, the crank shaft bolt on my "reverse rotation" 289 (Ford) is a standard right-hand bolt. By-the-way, a Sears harmonic balancer puller, $19.95, yanked the balancer right off the crankshaft but the pull bolts supplied in the puller kit did not fit my balancer - I had to run to the hardware store to get 3 proper fitting bolts for the puller. ------------- Happy owner of a '66 and a '68 Mustang |
Posted By: Siveck
Date Posted: March-17-2005 at 10:20pm
| Thanks for the information Stan and Jim. I was a bit nervous about breaking that bolt if I turned it the wrong way. |