Re: Reputable Hemi/Mopar Engine Builder in CA
[Re: 8pack]
#2608006
01/17/19 12:16 PM
01/17/19 12:16 PM
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Joined: Oct 2004
Posts: 8,166 Left Coast
BobR
master
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master
Joined: Oct 2004
Posts: 8,166
Left Coast
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I know this is an old thread but I finally had time to pull the engine to take a look at the carnage. Just as I suspected the thrust bearing is toast to the point the crank was starting to touch the face of the main caps but didnt do any damage to the block. I verified the clutch was not pushing on the crank while disengaged.
I got a little history lesson in the process of the inspection. Mopar increased the face of the thrust bearing in 73 but that didnt affect the Hemi because it was already out of production. Fast forward to the production of the crate engines and Mopar kept the small thrust bearing face. I believe the combination of the poor machine work, small face thrust bearing with a plain flat thrust surface and the twin disc increased pressure on the surface was responsible for killing it.
Now for the best solution? I am waiting for my new crank to show so I can see if the crank has enough area on the thrust to have the block machined to accept the large area thrust bearing or if I am stuck with the small area thrust bearing. If I am stuck with the small area thrust does anyone have any recommendations where I should change to the style with oil passages and thrust pads or the style with scallopes taken out of the inner face while retaining the outer plain face? A good machine shop can machine the block for a roller thrust.
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Re: Reputable Hemi/Mopar Engine Builder in CA
[Re: BobR]
#2608118
01/17/19 03:43 PM
01/17/19 03:43 PM
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Joined: May 2015
Posts: 34 nor cal
8pack
OP
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OP
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Posts: 34
nor cal
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A good machine shop can machine the block for a roller thrust.
I thought about that and talked to a friend about it but we agreed that I am not running a 2000hp engine with a converter forcing the crank forward. I am running a pretty mild engine with a reasonable clutch and should be able to either setup to a better bearing like the Federal with the ramped thrust pads that promote better oiling or change over to the larger thrust bearing. Has anyone seen a hemi modified to accept the large thrust bearing? I dont think the stock crank had enough bearing surface and I have not had time to check my new crank that arrived last night.
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Re: Reputable Hemi/Mopar Engine Builder in CA
[Re: Cab_Burge]
#2608400
01/18/19 02:12 AM
01/18/19 02:12 AM
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Joined: May 2015
Posts: 34 nor cal
8pack
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OP
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nor cal
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I dont know if it is good or bad but I am definitely not the only person that has had problems. https://board.moparts.org/ubbthreads/ubbt...ailure-440.htmlI think I had 3 things that contributed to my failure and my plan is to address all 3. 1) Plain thrust bearing face. 2) Rough on the thrust face of the crank. When the crank is machined it leaves "star burst" lines radiating outward. Very difficult to polish 3) Excessive clutch pressure (4 speeds). The heavier the clutch, the more pressure needs to be exerted to release it. This force pushes the crank forward against the rear thrust surface. I try not to start my car with my foot on the clutch because there is 0 oil pressure but I have done it out of habit. The 1st item I plan on changing to a bearing with thrust pads and oil grooves. I have see other forum members and engine build books grind reliefs for extra oiling before the bearings were available. The 2nd issue will be addressed before installing my new crank. The 3rd issue is going to be addressed by installing a 3qt accusump connected to the ignition and I am going to have to make it a point to not start it with the clutch engaged or extended periods with the clutch engaged.
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Re: Reputable Hemi/Mopar Engine Builder in CA
[Re: 8pack]
#2608445
01/18/19 04:37 AM
01/18/19 04:37 AM
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Joined: Aug 2003
Posts: 43,721 Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,721
Bend,OR USA
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Last edited by Cab_Burge; 01/18/19 04:39 AM.
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: Reputable Hemi/Mopar Engine Builder in CA
[Re: Cab_Burge]
#2608581
01/18/19 02:23 PM
01/18/19 02:23 PM
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Joined: May 2015
Posts: 34 nor cal
8pack
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nor cal
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I can almost hear the discussion when they were spec-ing out the Hemi crate engines... Dont worry, it will be fine to put a thrust bearing in with no oiling grooves, mot people run automatics and we will save a couple bucks....
Last edited by 8pack; 01/18/19 03:43 PM.
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Re: Reputable Hemi/Mopar Engine Builder in CA
[Re: 8pack]
#2611032
01/23/19 02:06 PM
01/23/19 02:06 PM
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Joined: Jan 2003
Posts: 19,537 Las Vegas
Al_Alguire
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 19,537
Las Vegas
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Mountain View is in Rancho Cucamonga is why you cannot find them. Frankly not sure they are listed in the book anyway. I lived in the North Bay for 12 years and cannot think of anyone in the south bay area at all
"I am not ashamed to confess I am ignorant of what I do not know."
"It's never wrong to do the right thing"
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Re: Reputable Hemi/Mopar Engine Builder in CA
[Re: 8pack]
#2611190
01/23/19 07:50 PM
01/23/19 07:50 PM
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Joined: Aug 2007
Posts: 498 El Dorado Ca
65signet
mopar
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mopar
Joined: Aug 2007
Posts: 498
El Dorado Ca
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We are not in the Bay area, about 2 1/2 hours east of there, Mopar that is our specialty. Full service Advantage Custom Engines
1965 Plymouth Barracuda 273 M/SA 1970 Plymouth Duster 360/904 10.60s with J heads
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Re: Reputable Hemi/Mopar Engine Builder in CA
[Re: Stuntman Bill]
#2611437
01/24/19 04:10 AM
01/24/19 04:10 AM
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Joined: May 2015
Posts: 34 nor cal
8pack
OP
member
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OP
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Joined: May 2015
Posts: 34
nor cal
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Not to discount 8pack's block woes (sorry, buddy) but do keep posting names of good Mopar wrench-turners in CA, please, folks. I need to find a reliable guy to work on my 440 RB. Someone mentioned "Mt. View Performance" and I cannot find them in the book hereabouts (Bay Area). In Silicon Valley, all the local performance shops specialize in tuning BMW's and the like. I need a guy who knows how to work on a real 'Murrican hot rod, not tweaked-out rice burners. I decided to bring it to Joey Gross from Gross Racing. I decided to bring it there because a member recommended him, has a dyno, returns calls, could do the teardown in a timely fashion and he has another Hemi in his shop right now. I will have more feedback in a week or so.
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Re: Reputable Hemi/Mopar Engine Builder in CA
[Re: 8pack]
#2611610
01/24/19 03:35 PM
01/24/19 03:35 PM
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Joined: Nov 2010
Posts: 1,397 Carson City, Nevada
Biginchmopar
pro stock
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pro stock
Joined: Nov 2010
Posts: 1,397
Carson City, Nevada
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Not to discount 8pack's block woes (sorry, buddy) but do keep posting names of good Mopar wrench-turners in CA, please, folks. I need to find a reliable guy to work on my 440 RB. Someone mentioned "Mt. View Performance" and I cannot find them in the book hereabouts (Bay Area). In Silicon Valley, all the local performance shops specialize in tuning BMW's and the like. I need a guy who knows how to work on a real 'Murrican hot rod, not tweaked-out rice burners. I decided to bring it to Joey Gross from Gross Racing. I decided to bring it there because a member recommended him, has a dyno, returns calls, could do the teardown in a timely fashion and he has another Hemi in his shop right now. I will have more feedback in a week or so. Joey is a great guy! You will be happy with him.
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