School me on small block timing covers please
#2709231
10/22/19 03:57 PM
10/22/19 03:57 PM
|
Joined: Jul 2007
Posts: 11,836 Florida
mopar346
OP
Let me tell ya about fat chicks!
|
OP
Let me tell ya about fat chicks!
Joined: Jul 2007
Posts: 11,836
Florida
|
So I realized on the Formula S I'm finishing that I may have the wrong timing cover on it. It's a 340 car with the original engine and I assumed the original cover when we got it. The clue I might have an issue is when I went to set the timing for start up and I realized the balancer didn't match the timing mark. I believe I may have a 67 cover and or balancer on the car, the car did run when we got it with no abnormal vibration. I guess the balancer hub could have slipped but if the mark was on the driver's side it would not be visible due to the power steering pump. Currently the mark is landing under the alternator in full view but no tab to measure it against. The easy fix is to just use a 67 timing tab but I'd like it to be correct and more importantly I want to know the difference for future reference. It is a 10/15/67 SPD and I don't know the original engine assembly date.
Thanks in advance, Kevin
Careful, your character's showing!
|
|
|
Re: School me on small block timing covers please
[Re: Alaskan_TA]
#2709238
10/22/19 04:31 PM
10/22/19 04:31 PM
|
Joined: Jul 2007
Posts: 11,836 Florida
mopar346
OP
Let me tell ya about fat chicks!
|
OP
Let me tell ya about fat chicks!
Joined: Jul 2007
Posts: 11,836
Florida
|
Thanks Barry,
I have found a timing cover with a molding in tab like on the 70 and up but on the passenger side. I have a compete 67 273 sitting in my shop that has a passenger side bolt in. I was told the bolt on was 67 and down but the molded passenger side was 68-9 and then of course the driver's side molded in is like my AAR and my other 71 and 73 340s are for 70 and up.
I was also curious if the 273-360 all used the same timing cover, for some reason I was thinking the 340 and 360 was different.
Careful, your character's showing!
|
|
|
Re: School me on small block timing covers please
[Re: mopar346]
#2709241
10/22/19 04:46 PM
10/22/19 04:46 PM
|
Joined: Oct 2006
Posts: 7,371 Iowa
burdar
Owen's Dad
|
Owen's Dad
Joined: Oct 2006
Posts: 7,371
Iowa
|
I think 67 uses the bolt on timing tab. The 68 and 69 covers have the cast-in markings but on the passengers side. My 68 Dart has the timing marks on the passengers side. In 1970 the timing marks moved to the drives side. They also changed to an aluminum water pump in 1970. Before that, the water pump was cast iron and had the lower hose on the drivers side.(thus the reason why the timing marks were on the opposite side)
Timing covers for small blocks will fit 273/318/340/360. 340 and 360 take different engine mounts...maybe that's where the confusion is?
Last edited by burdar; 10/22/19 04:52 PM.
|
|
|
Re: School me on small block timing covers please
[Re: burdar]
#2709263
10/22/19 06:34 PM
10/22/19 06:34 PM
|
Joined: Nov 2003
Posts: 36,041 Lincoln Nebraska
RapidRobert
Circle Track
|
Circle Track
Joined: Nov 2003
Posts: 36,041
Lincoln Nebraska
|
What Burdar said. On a side note install thedampener/gasket & keep the bolts fairly loose then draw on the dampener halfway (to center the tcover) then tighten the bolts & first the pump gasket fits better one way, flip it over back & forth dry on the tcover & you will see which way is better. Some bolts are wet so put something on em. check the tchain while you are in there (the 3 keyway sprocket is good) & people have complained about Cloyes quality. check that the bolt head by the fuel pump does not interfere with the water pump inlet nipple tho you ain't changing anything there so you should be good. EDIT meant to say "tcover/gasket" in the first sentence
Last edited by RapidRobert; 10/22/19 07:49 PM.
live every 24 hour block of time like it's your last day on earth
|
|
|
Re: School me on small block timing covers please
[Re: RapidRobert]
#2709276
10/22/19 06:58 PM
10/22/19 06:58 PM
|
Joined: Jul 2007
Posts: 11,836 Florida
mopar346
OP
Let me tell ya about fat chicks!
|
OP
Let me tell ya about fat chicks!
Joined: Jul 2007
Posts: 11,836
Florida
|
Great info.
Any thoughts on early 68s wearing a 67 cover from the beginning? I realize a 10/15 isn't necessarily an early build and it could have been changed along the way (I know the cam was changed and then changed back at some point). I didn't find a picture of the pictures before we purchased it and it has the 67 cover on it.
Thanks for all the input folks.
Careful, your character's showing!
|
|
|
Re: School me on small block timing covers please
[Re: burdar]
#2709278
10/22/19 07:02 PM
10/22/19 07:02 PM
|
Joined: Jul 2007
Posts: 11,836 Florida
mopar346
OP
Let me tell ya about fat chicks!
|
OP
Let me tell ya about fat chicks!
Joined: Jul 2007
Posts: 11,836
Florida
|
Timing covers for small blocks will fit 273/318/340/360. 340 and 360 take different engine mounts...maybe that's where the confusion is?
And isn't the oil pan different on a 340/360 as well.
Careful, your character's showing!
|
|
|
Re: School me on small block timing covers please
[Re: mopar346]
#2709283
10/22/19 07:22 PM
10/22/19 07:22 PM
|
Joined: May 2019
Posts: 6,306 nowhere
Sniper
master
|
master
Joined: May 2019
Posts: 6,306
nowhere
|
|
|
|
Re: School me on small block timing covers please
[Re: Sniper]
#2709286
10/22/19 07:30 PM
10/22/19 07:30 PM
|
Joined: Jul 2007
Posts: 11,836 Florida
mopar346
OP
Let me tell ya about fat chicks!
|
OP
Let me tell ya about fat chicks!
Joined: Jul 2007
Posts: 11,836
Florida
|
What's different? Does it use a different rear main design? I'm assuming if the t-cover is the same then the front of the pan is the same.
Careful, your character's showing!
|
|
|
Re: School me on small block timing covers please
[Re: mopar346]
#2709293
10/22/19 07:44 PM
10/22/19 07:44 PM
|
Joined: Nov 2003
Posts: 36,041 Lincoln Nebraska
RapidRobert
Circle Track
|
Circle Track
Joined: Nov 2003
Posts: 36,041
Lincoln Nebraska
|
the rear "half moon" on the 360 pan is different, (to match the curve on the #5 main cap), smaller iirc. & on the front seal mockup the seal into the pan half moon cutout & you dont want the seal ends way up higher than flush with the oil pan rail & some seals vary alot, some need the end flats trimmed a bit, though you do need some "crush" & some aftermarket pans need the 2 mini holes for the seal nubs to be enlarged or elongated for the seal to have a dead on fit, leaks are a pain but disregard if you have the stock pan but I just run into this with an aftermarket pan. sometimes the pan side gaskets need trimmed where they meet the rear main seal ends, Mockup & see what you see. On a SB, dry mockup/fitment is your friend. EDIT I missed that you ain't changing the pan
Last edited by RapidRobert; 10/22/19 07:50 PM.
live every 24 hour block of time like it's your last day on earth
|
|
|
Re: School me on small block timing covers please
[Re: RapidRobert]
#2709300
10/22/19 08:09 PM
10/22/19 08:09 PM
|
Joined: Jul 2007
Posts: 11,836 Florida
mopar346
OP
Let me tell ya about fat chicks!
|
OP
Let me tell ya about fat chicks!
Joined: Jul 2007
Posts: 11,836
Florida
|
Still great info and I really don't plan to change anything at this point since it is built and in the car. I scrounge up a 67 timing tab so I can set the timing and call it good. At this point I'm just trying to confirm things I've heard or thought I knew. Most of the small block cars I have done were complete so I never had to learn what fit what, original parts always seem to be correct , I do however have a few piece together builds coming in the future that this info will be good to know.
Careful, your character's showing!
|
|
|
Re: School me on small block timing covers please
[Re: mopar346]
#2709390
10/23/19 07:16 AM
10/23/19 07:16 AM
|
Joined: Jul 2007
Posts: 11,836 Florida
mopar346
OP
Let me tell ya about fat chicks!
|
OP
Let me tell ya about fat chicks!
Joined: Jul 2007
Posts: 11,836
Florida
|
So a piece of info came to me this morning that I would like to run by everyone. A knowledgeable person from another site sent back door info that the 69 style cover with the molded in tab was actually a late 68 and 69 issue and that many/most 68s had the 67 style cover and tab. They did say that the 69 style cover showed up on later build 68 year model engines. Can anyone verify that? Does anyone have a 68 with the original timing cover that can support or debunk this information?
Does the 273/318 covers have the same molded in tab in 68-69? If they do then it would suggest that they would not be that uncommon.
Thanks for the all the info, I'm just trying to figure this out best I can.
Careful, your character's showing!
|
|
|
Re: School me on small block timing covers please
[Re: mccannix]
#2709421
10/23/19 09:46 AM
10/23/19 09:46 AM
|
Joined: Jul 2007
Posts: 11,836 Florida
mopar346
OP
Let me tell ya about fat chicks!
|
OP
Let me tell ya about fat chicks!
Joined: Jul 2007
Posts: 11,836
Florida
|
Excellent input, thanks folks.
Now to the other question, did the 273s and 318s in 68-69 use the same molded cover as the 340? I have 2 340 cars that are missing the original engine and would like them to be as correct as possible.
Thanks again and again.
Careful, your character's showing!
|
|
|
Re: School me on small block timing covers please
[Re: Jim_Lusk]
#2709475
10/23/19 11:48 AM
10/23/19 11:48 AM
|
Joined: Nov 2003
Posts: 36,041 Lincoln Nebraska
RapidRobert
Circle Track
|
Circle Track
Joined: Nov 2003
Posts: 36,041
Lincoln Nebraska
|
I see those bolt on tabs regularly for sale over on FABO if you need one.
live every 24 hour block of time like it's your last day on earth
|
|
|
Re: School me on small block timing covers please
[Re: mopar346]
#2709738
10/24/19 09:39 AM
10/24/19 09:39 AM
|
Joined: Jun 2005
Posts: 5,112 Western Md.
skicker
"The Champ"
|
"The Champ"
Joined: Jun 2005
Posts: 5,112
Western Md.
|
One thing to be careful of is when looking for a cover with no timing marks and then planning on using a timing tab is to not get one for a 318 poly motor. The poly has an extra bolt in it that does not exist in any the the 273-318-340 blocks. We've all seen that stupid section of gasket sticking out of the timing cover a little more than halfway up the drivers side. That hole is for a poly only cover...
...FAFO...
|
|
|
|
|