Johnny Dart
Well-Known Member
Sorry, but I don't get any of it. Just going to bite my tongue.
Sorry, but I don't get any of it. Just going to bite my tongue.
Maybe in all the focus to seal with the spacer, the basics got over looked.ok. I mean.. that's my point too - i'm doing my best here and refuse to tow it to a shop man.
Maybe in all the focus to seal with the spacer, the basics got over looked.
This should get you back on track.
Carburetor Question - Is this a good call?
The turns out on the idle screws is not too important. That's just fine tuning info. Something to take note of. If there is no or little response to turning mixture screws - that's useful for analysing what's going on. Turn them in and the engine should stumble and then more and it should die when. (When throttle is at slow idle).you read my mind, thanks - I was just reading through that post right now in fact.
Reading your post and watching a few videos over some time here.. sounds like float level. This carb doesn't allow me to adjust the floats from the outside of the car - i'd have to take the bowls off and manually bend/adjust a bracket that holds them from the inside. this is sounding like my issue. I checked the idle screws and they're at 1.5 turns out from all the way in. Sounds like floats.
The turns out on the idle screws is not too important. That's just fine tuning info. Something to take note of. If there is no or little response to turning mixture screws - that's useful for analysing what's going on. Turn them in and the engine should sumble and then more and it should die. (When throttle is at slow idle).
Fuel level - according to the the info on the Holleys wensite for that carb, there are fuel bowl sight plugs. Remove those to check the wet fuel level. If fuel pours out - float level is too high. If its dribbles out, the primary is about correct. Secondary I prefer keep a fraction under the plug in most cases.
Since your struggling with getting a steady idle, check the level with engine off.
That would be a bummer. I was going from the pic on Holleys website.However if memory serves, the top holes are sealed and the sides where there are sight glass / screws, there aren’t any...
Other than the hardware they come with, they look the same to me. Same part number other than the suffix. View attachment 1715451855
It looks like you used the the flathead machiune screws which were intended for the countersunk inner pattern.
I think the only way this works is to use a allen heads or similar.
Hard to tell from the Speedway photo, but looks like that's the difference in the two kits.
You may have time to stop by a hardware store and buy four this afternoon. Just check the depth so there is enough threads to hold well but noit so long as to bottom out when tightened.
View attachment 1715451854
Sounds good!Hm. correct. I'll bring those bolts down to the hardware store and see fi i can find the correct ones..!
Thank you! I'm heading to the auto parts store to see if i can find them now
WOW. This shouldn't be this hard, but it is. Damn. I'm not familiar with your intake but from what I can see, I like it except for the missing bolt pattern for the Holley. I didn't even know Chrysler had intakes with the missing bolt pattern.
I think if you get the bolts correct and it seals, you'll be on the road to getting it tuned up.
I didn't realize it was going to be this much of a big deal or I'd have said screw it and find a Carter/Edelbrock for it like mattax said.
I think once you get the vacuum leak sealed it will get much easier. At least I hope that.
Sorry...I actually just grabbed that pic from the 'net, but back many moons ago, I used that same plate on the same intake you have, and, with the correct bolts, it worked just fine. Try a home center (Lowe's, etc.) for those bolts, or Fastenal/McMaster-Carr.Right? If Holley had the extra bolt holes like Edelbrock this thread wouldn't even exist.. However, what i'm thankful for is people here on the site helping me through and giving me some good info. I've learned a ton about adjustments i never knew before and honestly, i feel like i'm on the right path. But yah this is the stock 4 barrel intake on the Commando 273 engine.. id ditch the Holley before i ditch this!
I however no luck finding the bolts today at any of the auto parts stores that would carry them.. most parts stores around here don't even carry bolts.. odd. i'll dig the internets and see whats out there. I'll also call the company i got this plate from and see if they'll just exchange it out and that would solve everything, too.. the other plate had the right bolts it seems. @65Val - you don't happen to have a link to purchase the one pictured, do you?
But yes, i hope you're right there that once that vacuum issue is solved it'll just need some basic adjustments and off i go.
Fastenal or McMaster Carr will have the bolts you need.
Sorry...I actually just grabbed that pic from the 'net, but back many moons ago, I used that same plate on the same intake you have, and, with the correct bolts, it worked just fine. Try a home center (Lowe's, etc.) for those bolts, or Fastenal/McMaster-Carr.
San Diego area should have places with socket head cap screws. I'd least I'd think so with the Navy presence. Pensacola you could even buy AN hoses with teflon liners and have them cut and crimped to end fittings. Point is, ask around. Hard to imagine there isn't something like a Fastenal in the area. But if its easier, order on-line.
SAE Grade 8 is for hex head screws. Won't find the SAE grades for the allen wrench sockets. However at least it used to be all socket heads had pretty high tensile strength. Nothing to worry about. In fact, for what you are using them for, a slightly lower tensile strength would be better. You want enough torque on the screw that the threads slight stretch. That's what keeps them from backing out. With the thin adapter and gaskets, can't use too much torque or it will crack.
Damn.. good info. thanks
Don't need Grade 8 bolts for this issue...just get whatever Allen heads they have...you aren't torquing them down very tight anyway...it's just an aluminum plate.Thanks all - i was JUST about to head to Lowe's and decided not to because i didnt think they would have any SAE 8-ish bolts at all... but ya - i'll be searching these 3 asap.