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incoming 09-24-2020 05:42 PM
I'm a little late to the game here but here's my 2c worth. I've used non hardening Permatex on every paper and cork gasket I've set over thirty years. A super thin layer. My Shovelheads never marked their spot from the engine, only the chain oilers.

Before assembly, I always scrub everything down with alcohol to remove any oil residue.

Danr55 10-01-2020 12:03 PM
Interesting finding on my car. Excessive fuel had washed the oil off of the cylinder walls and worn the rings to nothing. Motor was using about 1 qt. every 300 miles. Be careful to run the right size carb or you could be right back in the same spot in short order.

tortuga 10-01-2020 12:16 PM
Mixture
 
Quote:
Originally Posted by Danr55 (Post 1483498)
Interesting finding on my car. Excessive fuel had washed the oil off of the cylinder walls and worn the rings to nothing. Motor was using about 1 qt. every 300 miles. Be careful to run the right size carb or you could be right back in the same spot in short order.
XP 750 always lean, idle screws 7/8-1 turn, small jets, annular boosters, no choke...

Understand the damage rich mixture can do to the cylinders...

Thanks

Steve H
SP 1764

NROTOXIN 10-02-2020 12:00 PM
Did you install the annular boosters on the XP? Downlegs come on the 750 XPs from the factory.

Gaz64 10-02-2020 05:35 PM
Quote:
Originally Posted by NROTOXIN (Post 1483536)
Did you install the annular boosters on the XP? Downlegs come on the 750 XPs from the factory.
Yes, that is correct.
But some of us have fitted annular boosters.
I have 12 hole billet annulars in my 850 XP.
Gary

tortuga 10-06-2020 10:35 AM
Going in this Friday BUT:
 
I'm thinking with shop rates here in Commiefornia up around 200/hr it only takes 50 man hours to burn through 10 grand, at which point you are probably half way through trying to fix a ($11K) problem engine with no guarantee of success?

I'm thinking it almost makes more sense to buy a COMPLETE SORTED TRURN-KEY engine and put this one on a stand to slowly go through it myself (with the help of machine shops)...

Problem is everyone has their favorite engine builder and the reviews range from wanting to let the guy marry his daughter to pending litigation.

I'm on the fence as to weather its time to just move on to something less mysterious? Sucks as i thought that a little car with a big simple engine would be really care free, but boy was i wrong...

Steve H
1764

tortuga 10-06-2020 10:38 AM
Yes
 
Quote:
Originally Posted by NROTOXIN (Post 1483536)
Did you install the annular boosters on the XP? Downlegs come on the 750 XPs from the factory.
Quick Fuel Main body, and jetted down to match what their built 750 is with annulars as a baseline...Did it for drivability and throttle response.

redmt 10-06-2020 11:01 AM
2 highly recommended engine builders.
Bell & Gaines in Modesto and Brent Lykins in Kentucky.

NROTOXIN 10-06-2020 12:20 PM
Quote:
Originally Posted by tortuga (Post 1483713)
Quick Fuel Main body, and jetted down to match what their built 750 is with annulars as a baseline...Did it for drivability and throttle response.
You took a 750 Ultra XP PN 0-80803 and replaced the main body with a Quick Fuel or was it some other Holley PN?

eschaider 10-06-2020 12:26 PM
Quote:
Originally Posted by tortuga (Post 1483712)
I'm thinking with shop rates here in Commiefornia up around 200/hr it only takes 50 man hours to burn through 10 grand, at which point you are probably half way through trying to fix a ($11K) problem engine with no guarantee of success?

I'm thinking it almost makes more sense to buy a COMPLETE SORTED TRURN-KEY engine and put this one on a stand to slowly go through it myself (with the help of machine shops)...

Problem is everyone has their favorite engine builder and the reviews range from wanting to let the guy marry his daughter to pending litigation.

I'm on the fence as to weather its time to just move on to something less mysterious? Sucks as i thought that a little car with a big simple engine would be really care free, but boy was i wrong...

Steve H
1764
Steve, I appreciate the $200/hr burn rate out here in Commiefornia. You ought to talk to S&S about a flat rate to freshen up the engine and fix the leak. I think they might well do business on that basis.

The other alternative is a long ways away but one that has done well for everyone I sent there. I know the owner personally and he is quite impressive. They do a lot of Ford Modular and Coyote work and have had several Texas mile and drag racing superstars. Here is a link to the website => L&M Engines. The owner is Michael Rauscher. If it helps to start the conversation, you can tell him you found him through discussion with me.

Michael does all manner of performance engines but tends to focus on Fords and the Modular family engines including the Coyote. His 'bedside manner' is sort of like Sgt Joe Friday on the old Streets of San Francisco TV series — 'just the facts Ma'am'. That said his machining and work product are excellent. Using him does mean you are spending freight back and forth to Commiefornia.


Ed

tortuga 10-06-2020 02:10 PM
S&s
 
Quote:
Originally Posted by eschaider (Post 1483723)
Steve, I appreciate the $200/hr burn rate out here in Commiefornia. You ought to talk to S&S about a flat rate to freshen up the engine and fix the leak. I think they might well do business on that basis.

The other alternative is a long ways away but one that has done well for everyone I sent there. I know the owner personally and he is quite impressive. They do a lot of Ford Modular and Coyote work and have had several Texas mile and drag racing superstars. Here is a link to the website => L&M Engines. The owner is Michael Rauscher. If it helps to start the conversation, you can tell him you found him through discussion with me.

Michael does all manner of performance engines but tends to focus on Fords and the Modular family engines including the Coyote. His 'bedside manner' is sort of like Sgt Joe Friday on the old Streets of San Francisco TV series — 'just the facts Ma'am'. That said his machining and work product are excellent. Using him does mean you are spending freight back and forth to Commiefornia.


Ed
S&S have gone the private machine shop route, only preferred racers can do business there now i guess...Kind of like what Morgan's was like before they folded...

FredG 10-06-2020 03:20 PM
Sealant type
 
Aerobic or anaerobic?




Quote:
Originally Posted by blykins (Post 1470243)
Yeah, I don’t care what the gasket makers say. Use sealant or you’ll be doing it again.

Glue the gaskets to the heads, set the intake on overnight to mash the gaskets down, then come back with another layer of sealant, lay beads for china walls, then bolt it down.

Tightening the intake down isn’t causing your problems.

blykins 10-06-2020 04:44 PM
I use Dow Corning 732.

Gaz64 10-06-2020 05:26 PM
Quote:
Originally Posted by NROTOXIN (Post 1483722)
You took a 750 Ultra XP PN 0-80803 and replaced the main body with a Quick Fuel or was it some other Holley PN?
That's what I did to my 80804. New annular banjos, 12 hole BLP billet booster inserts. Of course it helps if you have all the tools, easy job. All 4 are level to each other in all directions. Holley can't get that right.

NROTOXIN 10-06-2020 06:08 PM
Quote:
Originally Posted by Gaz64 (Post 1483743)
That's what I did to my 80804. New annular banjos, 12 hole BLP billet booster inserts. Of course it helps if you have all the tools, easy job. All 4 are level to each other in all directions. Holley can't get that right.
You changed just the boosters correct? He changed the the main body on a ultra XP with a main body from Quickfuel. I'm just curious why.

Where did you get your annulars from?

Gaz64 10-06-2020 06:23 PM
Quote:
Originally Posted by NROTOXIN (Post 1483749)
You changed just the boosters correct? He changed the the main body on a ultra XP with a main body from Quickfuel. I'm just curious why.

Where did you get your annulars from?
Yes, still looks like a Holley XP, 80804 main body, float bowls etc.

Holley banjos are from one ebay seller in the US:
https://www.ebay.com.au/itm/Holley-Q...MAAOSwJ65e0kZe

and the inserts are direct from BLP:
https://blp.com/cart/index.php?main_page=index&cPath=65

Or you can go this way:
https://www.ebay.com.au/itm/Holley-Q...frcectupt=true

And you also need the booster installation tool, which for annulars requires the additional adaptor.


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