- Location
- HUNTINGTON BEACH CA
all 3 bolts are striped whats the best way to solve this? i was gonna helicoil it but the kit cost like 130$ from mc master. should i just drill out and tap for larger bolts?
Surfriding Striped Manifold Factory b 62t helicoils?
- Thread starter shaunsteezy
- Start date
- Location
- Santa Rosa Beach,FL
i had same issues last night but luckily i had an extra manifold laying around
im gonna helicoil them seem like its the best/strongest way to go
im gonna helicoil them seem like its the best/strongest way to go
If you tap for larger bolts, you will have a hard time with fitting a socket on the larger bolt head. You can do it by going to the next standard size (rather than metric), but it's a tight fit.
I vote helicoil or better yet, timecert.
I'm not sure why the helicoil kit would be $130. That sounds crazy expensive.
I vote helicoil or better yet, timecert.
I'm not sure why the helicoil kit would be $130. That sounds crazy expensive.
- Location
- Santa Rosa Beach,FL
right i was thinking that too?
im on mc master site now n they have a ton of different heli kits
the one i would get for your situation was only $47
im on mc master site now n they have a ton of different heli kits
the one i would get for your situation was only $47
I did helicoils first. They are good and last a long time. I ended up messing up my helicoils later and had to bigserts but that's another story.
My recommendation... Get 3/8-24 bolts and helicoil kit so you can get rid of those STUPID M10 impossible to find bolts. You can get 5 Stainless 3/8-24 socket head bolts (92196A365) for $6. Plus they're longer than the FP bolts and therefore have more thread contact so they're less likely to strip since the FP bolts only contact about 3-4 threads. Then get the appropriate helicoil kit which is also cheaper at $40 (91732A932). Both are cheaper than just the helicoil kit for the M10 bolts, you'll have backup bolts that don't cost $10 a piece, and if you go out of town and lose a bolt, you can go to the local hardware store and get a replacement. I'm using 3/8-24 bolts in my head pipe right now and they work great.
edit: FYI, the drill size for those standard helicoils are large enough to clean up the damage and I torque mine down to 30 ft-lbs so they're plenty strong enough even though they are slightly smaller dia bolts.
My recommendation... Get 3/8-24 bolts and helicoil kit so you can get rid of those STUPID M10 impossible to find bolts. You can get 5 Stainless 3/8-24 socket head bolts (92196A365) for $6. Plus they're longer than the FP bolts and therefore have more thread contact so they're less likely to strip since the FP bolts only contact about 3-4 threads. Then get the appropriate helicoil kit which is also cheaper at $40 (91732A932). Both are cheaper than just the helicoil kit for the M10 bolts, you'll have backup bolts that don't cost $10 a piece, and if you go out of town and lose a bolt, you can go to the local hardware store and get a replacement. I'm using 3/8-24 bolts in my head pipe right now and they work great.
edit: FYI, the drill size for those standard helicoils are large enough to clean up the damage and I torque mine down to 30 ft-lbs so they're plenty strong enough even though they are slightly smaller dia bolts.
Last edited:
- Location
- HUNTINGTON BEACH CA
thanks for the input. i did locate the correct kit on mcmaster n yes it was oly like 45$ but i did like waternut mentioned and found a 3/8-16 helicoil kit in my tool box haha stainless screws were 7$ at ace hardware. i hope the coarse thread will work fine? good bye metric!
speedysprocket
Alex
- Location
- Chesapeake, VA
I love heli-coils, but that fine thread metric bolt they use is pretty hard to thread the new coil. I've heli-coiled two of those manifold bolt holes now, and they are much stronger than the aluminum threads.
hornedogg79
dodgin' bass boats
Drill/tap to a bigger size then use socket head bolts.
You should be fine. Just make sure your bolts have enough length on them.
That is actually the worst idea. Once you drill and tap to something bigger, you can never go back to anything else because the hole will be too big for even a bigsert. If you strip those new threads which is inevitable because you're still torquing in aluminum, you've trashed your manifold and possibly your head pipe as well because the thinner wall on the head pipe are now more prone to cracking.
So.....what's the deal with stripped manifolds? I keep hearing about it, but I gotta tell ya: I've been using the same manifold since 2005 and it was used then.
I've seen it happen to other people (and I'm probably jinxing myself) but it leaves me to wonder if people should be using a torque wrench on the appropriate setting rather than manhandle those bolts by feel.
I've seen it happen to other people (and I'm probably jinxing myself) but it leaves me to wonder if people should be using a torque wrench on the appropriate setting rather than manhandle those bolts by feel.
So.....what's the deal with stripped manifolds? I keep hearing about it, but I gotta tell ya: I've been using the same manifold since 2005 and it was used then.
I've seen it happen to other people (and I'm probably jinxing myself) but it leaves me to wonder if people should be using a torque wrench on the appropriate setting rather than manhandle those bolts by feel.
I've seen it happen to other people (and I'm probably jinxing myself) but it leaves me to wonder if people should be using a torque wrench on the appropriate setting rather than manhandle those bolts by feel.
Freakrider
X247
- Location
- Tampa Bay area
I use longer 10mm cylinder bolts and torque to 20 ft/lbs and it does not loosen up (with anti-seize)...
old parts plus vibration and salt- wavedemon style. You are okay you got new and pretty....worry wart.
- Location
- Fort Worth
I just helicoiled mine.3/8 16.works great.
- Location
- central florida
Galvanic corrosion will eat up the alu. threads in the manifold, then next time you install the fasteners they may strip. Loctite or similar is an excellent corrosion barrier for dissimilar metals which I prefer. Anti-seize of course will do that too. I have several manifolds that still are not stripped after 15 years of use. Of course I've never used the original Fac. Pipe fasteners either, just the Yam cylinder retaining screws .