Author Topic: Spigot screws will not budge... (Read 1614 times)

GrandRapids750K3 · « **on:** April 16, 2013, 06:32:02 AM »

Hey all,

Just got my new exhaust in the mail and I need to get my old spigots off so that I can put in some studs and bolt on the new exhaust. Proves to be easier said then done.

I've soaked in PB Blaster a couple of times and hit it with my cordless impact driver, but no luck. I had kind of figured this would be the case, but was really hoping for a bit of luck. Next step is some heat? Should I be trying a hand held impact driver? I really would like to get this done myself and avoid the Honda shop, but my biggest fear is stripping out a screw or snapping one off.... On top of all that I have no idea how I'm going to get the center ones free while the engine is still in the frame....

iron_worker · « **Reply #1 on:** April 16, 2013, 08:22:33 AM »

Heat. Lots of heat! If you're just using a propane torch then you could hold that thing on there all day and not hurt it. If you're using an oxy/acet torch (and you may want to be) then you have to be a bit more careful. A few cycles of heating the the fastener and quenching it with a wet rag may help to break the corrosion bond.

IW

Vinhead1957 · « **Reply #2 on:** April 16, 2013, 10:43:13 AM »

Use Mapp instead of propane.. It provides more heat

GrandRapids750K3 · « **Reply #3 on:** April 16, 2013, 11:43:59 AM »

Iron- Thanks. One of my questions was if I needed to be carful with the head to not cause any damage, so thanks for the info. Also never heard to quench with a wet rag, I'll give it a shot. I don't/won't have access to oxy/acet torch, so I'm really hoping less heat will still work.

Vin- Good heads up on the Mapp, I would not have know to pick that up instead of regular propane.

Has anyone ever heard of using wax once heated? I watched a video and it looked pretty effective, wondering if anyone has tried this.

How about the difference between a cordless impact vs. hand impact. Mine is a Harbour Frieght brand, so it's likely not the most powerful, but it hasn't let me down yet....

John Eberly · « **Reply #4 on:** April 16, 2013, 12:00:10 PM »

I recommend a product called AeroKroil. Works great with heat, I have had many parts become very easy to remove after one or two cycles of heat and quench with this oil.

You can get spray cans on Amazon, I haven't seen it in any local stores.

BTW I'm in your area - live in Grand Haven and work in GR.

Best of luck.

Old Scrambler · « **Reply #5 on:** April 16, 2013, 01:08:46 PM »

After heat and quench, use a hand-impact and a 2-lb. hammer.............use the best fit for a bit. If a screw head breaks off you can usually remove the spigot and grab the remainder.

Be sure to use new exhaust gaskets

MCRider · « **Reply #6 on:** April 16, 2013, 01:47:33 PM »

Quote from: Old Scrambler on April 16, 2013, 01:08:46 PM

After heat and quench, use a hand-impact and a 2-lb. hammer.............use the best fit for a bit. If a screw head breaks off you can usually remove the spigot and grab the remainder.

Be sure to use new exhaust gaskets

Agreed you gotta use a big hammer and get a clear strike at it. Big failure of hand held impacts, not a big enough hammer. USe a glove on the holding hand. General comments about hammer drivers. Don't know if you have enough swing room on an engine in the frame.

GrandRapids750K3 · « **Reply #7 on:** April 16, 2013, 04:44:35 PM »

Just put in an order for a can of Aerokril... if it's as good as the reviews I'll be happy. Probably run and pick up a torch this week but wont really have any time to play till the week after next... Thanks for the tips and I'll keep everyone posted...

John- How long should I heat at time? Heat and then add the aerokril right away? Great riding out by you. Didn't get out there much last year but had definite plans this year. Assuming I'm up at riding. Always looking for other riders in the area, will need to put together a ride some time this summer... I'm planning on heading to Gilmore; again, assuming I'm riding by then....

Old- I got a pile of new gaskets, studs, and nuts next to my exhaust... I'm so close, just need to get these spigets out...

Also took off the old carbs today, old pods, and started cleaning up the air box.... starting to warm up here, so I need to figure out what I'm doing fast...

BobbyR · « **Reply #8 on:** April 16, 2013, 04:58:11 PM »

The Kroil is a good product. Since your stud is steel and it is stuck in aluminum, what you really want is to expand the aluminum not the steel. Do your heat cycles but to heat mostly the aluminum.

seanbarney41 · « **Reply #9 on:** April 16, 2013, 10:33:17 PM »

imo, you shouldn't be using that cordless impact on the JIS screws on these bikes...it is too un-controllable andyou are just gonna chew 'em up. Use the good old hand held one. I have used them successfully with an extension to help you get by the frame tubes but I may have had the forks out of the way.

GrandRapids750K3 · « **Reply #10 on:** April 28, 2013, 06:05:32 AM »

Thought I would give everyone who gave me good advice an update....

After about six hours and lots of heat, AeroKroil, hand impact driver, banging, and cussing... SUCCESS!

Got them all out with only real trouble from a couple that were getting pretty rounded and chew up. Once they broke free it was no problem, probably could have backed them out with my fingers...

Here's a couple of pictures.... Got all the parts for the new exhaust, so as soon as I can find a couple of hours I'll get em on... May actually be riding this summer....

ekpent · « **Reply #11 on:** April 28, 2013, 08:23:02 AM »

Be nice to chase those threads a little with a tap and die set if you had one to clean them out well. Are you running studs or bolts on the new exhaust ?

MRieck · « **Reply #12 on:** April 28, 2013, 09:18:21 AM »

Whatever you use put high temp Never Seize on the threads

GrandRapids750K3 · « **Reply #13 on:** April 28, 2013, 10:12:27 AM »

I unfortunatly don't have a tap and die set... I'll give them a good flush with some air and try to get them cleaned out.

I'm putting in studs... need to work on digging out the old gaskets first....

lucky · « **Reply #14 on:** April 28, 2013, 10:31:44 AM »

Quote from: GrandRapids750K3 on April 16, 2013, 11:43:59 AM

Iron- Thanks. One of my questions was if I needed to be carful with the head to not cause any damage, so thanks for the info. Also never heard to quench with a wet rag, I'll give it a shot. I don't/won't have access to oxy/acet torch, so I'm really hoping less heat will still work.

Vin- Good heads up on the Mapp, I would not have know to pick that up instead of regular propane.

Has anyone ever heard of using wax once heated? I watched a video and it looked pretty effective, wondering if anyone has tried this.

How about the difference between a cordless impact vs. hand impact. Mine is a Harbour Frieght brand, so it's likely not the most powerful, but it hasn't let me down yet....

A oxy-acetylene torch is 3,000º Aluminum melts at a much lower temp,around 1400º.

lucky · « **Reply #15 on:** April 28, 2013, 10:35:00 AM »

Quote from: GrandRapids750K3 on April 28, 2013, 06:05:32 AM

Thought I would give everyone who gave me good advice an update....

After about six hours and lots of heat, AeroKroil, hand impact driver, banging, and cussing... SUCCESS!

Got them all out with only real trouble from a couple that were getting pretty rounded and chew up. Once they broke free it was no problem, probably could have backed them out with my fingers...

Here's a couple of pictures.... Got all the parts for the new exhaust, so as soon as I can find a couple of hours I'll get em on... May actually be riding this summer....

Shortened.......

Were you using the correct size phillips bit?
Did you use a #2 or a #3 bit?
Did you know that the impact driver must be preloaded, (twisted) in the direction you want to go before striking it with a hammer?

GrandRapids750K3 · « **Reply #16 on:** April 28, 2013, 10:44:25 AM »

I'm fairly confident I had the right bit. Not sure of the number but I made sure to get a big one that fit well. This was my first time using the impact driver, so there was some learning curve but I either worked it right or got lucky, I'm ok with both....

lucky · « **Reply #17 on:** April 28, 2013, 12:26:07 PM »

Quote from: GrandRapids750K3 on April 28, 2013, 10:44:25 AM

I'm fairly confident I had the right bit. Not sure of the number but I made sure to get a big one that fit well. This was my first time using the impact driver, so there was some learning curve but I either worked it right or got lucky, I'm ok with both....

I understand.
Next time you use the impact driver put the bit in the screw,press down and turn the driver in the direction you want to go and the hit it with the hammer.

Some people do not know any better... and just put the impact driver on the screw and hit it with the hammer. That always strips the screws.

GrandRapids750K3 · « **Reply #18 on:** April 28, 2013, 01:46:12 PM »

Good info lucky, I'll definitly do it that way in the future. I'm thinking there were plenty to times I wasn't doing it correctly...

So lets put the thread to bed once and for all....

Everything is nice and tight. Torqued the bolts good and hard but I'll check them once I get it fired up and moving down the road.

Thanks for the pointers all... Carbs will be arriving soon from from Digger and in the mean time I have an airbox to clean up and repair...

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Author Topic: Spigot screws will not budge... (Read 1614 times)