Mike’s Carburetor

posted in: carburetor | 19

Welcome to Mike’s blog. I hope you find my articles helpful as well as informative. I welcome comments on any of my articles. You might also want to sign up for my email notification so that you are notified any time a new article is added.

We have a ton of technical information for just about any carburetor and new information is being added on a daily basis. Check back again.

For all of your carburetor needs, please visit Mike’s Carburetor Parts.

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19 Responses

  1. I have a Rochester Qjet I am getting ready to put back together, I know which kit I need, but 2 parts need replacing, the Hot Idle Compensator and the front vent. the carb number is: 7042262.
    the compenstor is missing and the vent tube was cut off, where can I find these 2 parts?

  2. Ron Boyer

    I finally got my 1985 Dodge D-150 through emissions. The motor was clogged with carbon. Any way, when I start my truck in the morning, it sounds like it’s missing till it warms up. I’m thinking it has something to do with the choke pull off or the choke. Any ideas? Thanks Mike, you always have knowledge of these problems.

    • I’m afraid I’m not that familiar with what is on a 85 Dodge. Too new for me, but the choke would be a good bet and not the pulloff. However, I believe your carburetor is an electronic type so all bets are off. Your system would have to be checked out to make sure the solenoids are working correctly. I don’t know how that is done because I don’t work on anything that late model.

  3. William Butler

    Hello, as with the others who have posted here I also enjoy your site, and appreciate all your tips and information you have to offer. It is refreshing to purchase a product from someone who can assist you with any technical questions that may arise. My question is in regards to a Holley 1920 stamped 1131 4656 out of a 1971 doge dart 225. Sometimes off idle it will fall flat or gasp then catch itself before it dies out. Also when looking at it I observed that fuel will leak consistently out the bleed hole under the float bowl after snapping the throttle. Will your carb Kit contain what I need to rectify this? Is there any thing else I would need to correct these problems, and why is this happening? Thanks for any parts and info you can provide. Bill

  4. Shawn McAvey

    I enjoy your site and appreciate your guidance to all of us shade tree mechanics. In your video on rebuilding a YF carb. I did not see you address the plugs that are included it the rebuild kits.
    How do you handle the removal and replacement of these plugs.
    Is it necessary to go thru all that when rebuilding these carbs?
    Thank You.

    • If you are talking about the clean out plugs, then no you don’t have to use them. We use ultrasonics, so getting into those places are done for us. Assuming you don’t have this type of machine and you have been using the carburetor, then I wouldn’t worry about it. If the carburetor has been sitting for years, then yes remove them, clean then replace the plugs. You remove the plugs by drilling a hole in them, then prying them out. Place the new plug in the hole, we spread a little JB weld around it just to be able to sleep at night, then hit the plug with a hammer. The will spread the plug out for a tight fit.

  5. Daniel Wylie

    I have found your site quite informative and appreciate all the insights and tips. I recently purchased a 4007 rebuild kit for my Monojet, and so far everything has gone well. Two questions, there are 3 different throttle body to manifold gaskets included, all identical except for thickness, now obviously the stud length will ultimately determine which thickness I will use, but what if any other considerations would there be in determining which thickness would apply. Secondly, I discovered in the tear down that I actually only have half of the vacuum break link assembly, the lower piece that passes through the diaphragm, I see you have a kit (#1227-1) that includes the link assembly, but is currently out of stock. I have everything else pictured and only need the link assembly, might you have or be able to point me towards someone who may have that on hand? I have been unsuccessful in finding one otherwise, and thought I’d ask you before putting out an APB on the truck forum.


    looking for float for holley #1904 on 1957 ford fairlane 6 cylinder

  7. Vlad Stancescu

    Hello, i have a 1989 Toyota Crown with the 2.8L 5M engine and it has an Aisan carburetor on it, can you help me identify a rebuild kit for it? thank you

  8. Mike Heatherly

    I find your information and Videos very helpful. I purchased a #427 Rocherster 2GC rebuild kit which you helped me match up from the limited information I had. Everything worked out ok except for the Acellerator pump which I measured and asked for a 5/8″ pump plunger. The leather plunger I removed
    seemed to tuck under a second lip on the shaft. I could not get the rubber replacement plunger to sit properly on the shaft. I used the leather shat for another spare Carbuerator. I wanted to buy another rebuild kit. Is there a way to
    get a 1/2, 5/8, and 3/4 in one kit since it seemed to small at 5/8.

    The kit worked out well other wise.

    • There isn’t a 1/2″ pump. There is a 5/8 & 3/4. There is one other, but it is very close to a 5/8″. What you need to do is go through the 2GC rebuild kits I have online and check the technical information on each. I have the accelerator size on most of the listings. You couldn’t get the cup on the shaft because the 2G accelerator pumps do not have replaceable cups. The entire pump is required. At least on most. You need to find the kit that has the same pump and needle & seat as you have.

    • I have a question about my holley 1920 carb. I was wondering what the large tube on the main body (where theres a stamp) is for. It is usually plugged with a hose and a bolt in it. On your rebuild video of this carb the tube is gone and seems to be plugged. This seems to b a vent tube or something. What should I do with it? Plugg like it was with a hose and bolt? Or how do I plug it if it needs to be, like it is in video (Soldered?) What is it for?

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