Bisi heat shield

[hondamanf22]

Just wondering if any of you had a problems with vibration after installing a heat shield. what I mean by vibration is nuts getting loose.
I don't want to locktite the nuts cause it's kind of difficult to reach all the bolts at the bottom of the intake mani. I have big forearms so its a big pain to reach all of them for myself anyways.

I noticed that my h22 didn't have the same punch or response in higher rpms or normal driving conditions when driving around town. but after getting home I started to look out for what was wrong(at the time I didn't know what was going on). now that that's out of the way and running much better and idle is
where it should be, the response is back.

So if any of you can respond on this matter I would appreciate your input.

[Losiracer2]

Just wondering if any of you had a problems with vibration after installing a heat shield. what I mean by vibration is nuts getting loose.
I don't want to locktite the nuts cause it's kind of difficult to reach all the bolts at the bottom of the intake mani. I have big forearms so its a big pain to reach all of them for myself anyways.

I noticed that my h22 didn't have the same punch or response in higher rpms or normal driving conditions when driving around town. but after getting home I started to look out for what was wrong(at the time I didn't know what was going on). now that that's out of the way and running much better and idle is
where it should be, the response is back.

So if any of you can respond on this matter I would appreciate your input.

did you remember to torque them to Honda's specifications? I think its 16ft-lbs or somewhere close to that for those 12mm nuts.

[F22Turbo702]

I've had issues like that on B-series with plastic gaskets...I recommend longer studs and some Class-C locking nuts, if the problem persists.

[dbsharp]

what you need to do is re tighten the bolts after a little while of use. that gasket will compress and deform a little bit, and will not apply the same force on the IM causing the nuts to get loose. After you do this once or twice you probably wont have to do it anymore.

[excalibur02]

Try to get a skinny friend to help you as much as you can with tightening the nuts. I'm dont have a problem with my bisi gasket and nuts getting loose.. lmao sounds funny!

[steelbluesleepR]

the rattling might be the support brace for the intake mani, did you make sure to tighten that down?

[hondamanf22]

did you remember to torque them to Honda's specifications? I think its 16ft-lbs or somewhere close to that for those 12mm nuts.

yep got it bro.

what you need to do is re tighten the bolts after a little while of use. that gasket will compress and deform a little bit, and will not apply the same force on the IM causing the nuts to get loose. After you do this once or twice you probably wont have to do it anymore.

yeah thought of that and going to do it again in a few days

I've had issues like that on B-series with plastic gaskets...I recommend longer studs and some Class-C locking nuts, if the problem persists.

thought about that when I first put it back together but might us the locking nuts

Try to get a skinny friend to help you as much as you can with tightening the nuts. I'm dont have a problem with my bisi gasket and nuts getting loose.. lmao sounds funny!

All my skinny friends are no longer skinny LOL but might have the wife do it for me next time. she has in the past which is always cool of her and she likes to tell me where else I can't get into. I just tell her see likes my fat finger. lol

the rattling might be the support brace for the intake mani, did you make sure to tighten that down?

No I didn't, it was pissing me off trying to get the nuts under the runner I got tried of hanging over my engine bay but I'll get her done.

thanks for all your help I'll make sure I use your guy's advice and use it to good use. thanks fellas

[steelbluesleepR]

No I didn't, it was pissing me off trying to get the nuts under the runner I got tried of hanging over my engine bay but I'll get her done.

thanks for all your help I'll make sure I use your guy's advice and use it to good use. thanks fellas

make sure you get that support brace bolted up right, my last one fell off because it wasnt tight then i cracked 2 intake manifolds from not having one.

[Granite CB7]

^ouch, I always wondered if the runners would crack w/o the brace.

I started to seep coolant from mine, but I retorqued it once and it's been fine ever since. The motor sees alot of extra vibes from the 94a mounts. Bisi h/s on the F22A btw.

[nostringz]

make sure you get that support brace bolted up right, my last one fell off because it wasnt tight then i cracked 2 intake manifolds from not having one.

never had or heard of this issue. hmmm.

anyways, i think a lock washer would benefit.

[Sarthos]

Those bottom nuts are easier to access if you put the car on jacks...I'm just gonna replace mine with longer studs, a few of the studs came out on my project motor when I took the intake and exhaust manifolds off, so all new studs seems like the way to go.

[BLUBB2]

I had a similiar issue on my H23 with the bisi gasket. The nuts came so loose that coolant was dumping into cylinder number 4 and also leaked externally quite a bit. Took me a while to find out it was just that...:/

[jhondayaaj]

Never had a problem with my old setup and it's been a few times too and installed.

[turbo90accord]

i use these special copper coated locking nuts that are used on audi exhaust manifolds. they have a crazy oval designed hole that squeezes the crap out of the stud. I have never had one back off and they look really cool too!

[steelbluesleepR]

i use these special copper coated locking nuts that are used on audi exhaust manifolds. they have a crazy oval designed hole that squeezes the crap out of the stud. I have never had one back off and they look really cool too!

those are called jet-nuts. you can get titanium ones from ballerbolts.com and they're like $0.84 each. i havent really found them anywhere else but i'm sure mcmaster carr has them.