Hold on Chris. As much as I agree that some sort of positive ventilation is good, there is no common plenum in your manifold to get vacuum from. Just tying into one runner might upset that cylinder/carb venturi. Perhaps a call to Inglese would be in order since they are spe******ts in those induction setups. I would like to see you think the plumbing out before doing anything rash. Joe
Joe who is Inglese , I have been dealing with Mike and Steven in Gilroy /they are Piearce Maifolds and a Weber dealer Thanks
Back to the begining, I looked over the pics and think it looks like a fuel issue also with a mix of oil. Un-burnt fuel will cause this, wrong timing, or need a hotter spark. The cross hatches are also pretty clean for being run on, so, if the heads are good, i would think you have a problem with the bore size or the rings. Too much gap, washed out, cracked ring on install, one ring is upside down on all, (seen it before) or someone lined up all the ring gaps on the build.. Or is it just possable that with the rings on the plugs that it's just pulling the oil thru the threads and into the chambers?? The oil seems to be running out of the exhaust ports, that's alot of oil, probably in the mufflers also,, I'm sure it will smoke when it's all up and running and hot, till it cleans them out.. I would like to see the comp check and leak down after it is up and running again.. Also, i'm not to familiar with the hemis, but is it possable some one left out an oil galley plug or plugged up something they shouldn't have, restrictors.. A trick that went wrong,,?? Just some ideas, Hope it all works out
You never answered the question of the spark plug gaskets being used, is that a yes or no..If yes, remove and check tubes for damage from gasket..I had valve guide seals leaking, in my 241 Hemi. It seemed to fix itself and not leaking now..That is a lot of fuel in the cylinders, I think you'll need lot of energy, (spark) for ignite the fuel..I run a pertronixs in mine, have 3x2 intake with 97s and it burns it up in the firing stroke and I have only 241 CIs.. Duane.
I agree with this completely-too rich. Get some new plugs, rip that manifold off and bolt on a single 4bbl intake and carb (just to rule out the oil issue). For a couple hundred bucks or a loaner, you could swap intakes and put your mind at ease. If the 4bbl intake solves your issues, you found the problem. It's then up to you whether to keep working on that impressive intake. There is no real way for oil to get to the plugs unless it's burning it, which you say it doesn't smoke. Don't give up-you're figure it out. But don't rip into the engine so deep without trying the easy stuff first. Nice call on the Mag oil slinger. Kurt
Okay Chris, so now thanks to jj mack you should know who Inglese is. I don't know the folks you mentioned but that is no surprise since I don't mess with Webers. On the 4bbl idea, I might have a 392 4bbl manifold gathering dust. I don't want to sell it but I could loan it to you if you want to try a test since your engine is in pieces anyway. LMK and I will look for it, (picture a pic and shovel at work). JOe
Ok another update I talked to the Inglese guys (Chuck ) very nise guys I need to give him a call in the morning ,he will give me a direction on jets I have tried 1) hot and cold plugs ,non resister and resister (all about the same ) 2) I have run plugs with washers and with-out (same ) 3) I have jetted the carbs as low as the local weber guy says (same) I love my Mag AND my Webers but if one has to go its the mag I never had any luck with vertex mags 1.5 AMPS when I drag raced only MSD mags 22 AMPS I had ordred the MSD about 6 months ago just been hoping that I would not need it Tearing the engine down is second nature to me ,we used to change heads in between rounds racing great thread picked-up great tips and ideas hope to have the coupe running by saturday that's if I get of San Quenten San Francisco Friday we have a concrete pour tomorrow at death row (thats the row Scott Peterson is on ) Joe Thanks for the loan CZ
Maybe you could see to it that Scott gets a custom fit pair of concrete boots and accidentally falls into the bay LOL. Lemme know it you need the manifold.
This may be a dumb question, but do you think that the fouling is from the carbs being way too rich and then the oil is getting on the plugs when you remove them? I thought that the purpose of the spark plug tube seals installed on the heads was to keep oil from pooling around the threads. Your pics show oil pooled around the threads. HemiRambler caught that on his first reply. Sometimes the easiest things are overlooked. From my experience with engines having oil-fouled plugs, there was noticeable oil consumption, exhaust smoke, and the smell of burned oil. How does the exhaust smell?
Looks like they two plugs in the picture are to rich. It could be caused by valve adjustment. You have unburned fuel on the plugs. If the intake valves are to tight it will really screw with those carbs. You get a pulse back into the intake of exhaust to dilute the mixture. Plus without a plenum it'll really mess with the venturie in the carb. Could be weak spark, to cold on the plug heat range (which the washers could affect), or restriction on the intake or exhaust. I would pop the intake valves out on the two cylinders that fouled and check the seats. If they are black with no shiny bare metal you found a problem. Jeff
Another up First thanks to all for the great tips . I had the heads cleaned and all valves and spring check also had Hot Heads tube incerts installed (need to mill the head for thse) I called Chuck with Ingeles they are in Tennesse ,Chuck was great he asked me about the motor ,cam ,compression etc ,and knew what I need He shipped it Saturday overnite . The great news The Coupe runs like a ****d APE and
Sorry hit the Post ****on by mistake The best news is I have my Webers and my Vertex mag EVERYONE WAS RIGHT IT WAS TOOOOO RICHHHHH Wish my local Weber dealer knew what Chuck knows .dont matter now I will never go back to my local guy Again Hamb Members have come thru with the help needed Thanks Chris
The new MSD set-up is for sale,I bought this to replace the Vertex mag the Mag was bought new from Vic Hubbard speed and marine in 1967 and rebuit by Hunt Magneto
Great news! Glad you went in Inglese to get some help on the carb setup, they are a good group of folks. They helped me a few years ago with a dual side-draft weber setup. I'll bet your motor runs a lot better now that you've leaned it out as it should be. This was a good thread . . . especially with a happy ending! Dale
Yes the car runs great Thanks to Chuck with Inglese http://www.compperformancegroupstores.com/store/merchant.mvc?Store_Code=IN
Joe when is Jimmys Picnic ?? also thanks for the great lead finding Ingeles my car is running sooooo gooood Still have my mag and Webers
Jimmy's Picnic is Oct 12th, this year. It is in Speedway Meadow. If you have a fax, PM me your number and I'll shoot you the flyer. Oh yeah, you are very welcome about Inglese. JS
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