What is everyone using to glue down their crystal? I did manage to find the appropriate electonics safe RTV 162 at a few places on-line but it would cost about $30 for a 2 oz tube of the stuff. The idea of hot glue is nice, but since it melts at abou 120 degrees, won't it melt once the board warms up?
What seems to be working for the rest of you out there?
Thanks in advance!
Dan
What is everyone using to glue down their crystal?
Forum rules
Read the manual to see if your question is answered there before posting. Many users will not reply if the answer is already available in the manual.
If your question is about troubleshooting, configuration, or tuning, you MUST include your processor type (MS-I or MS-II) and code version in your post. If your question is about PCB assembly or modifications, you must also include the main board version number (1.01, 2.2 or 3.0).
If you have questions about MS1/Extra or MS2/Extra code configuration or tuning, please post them at www.msextra.com Such questions posted here will be moved to: a temporary MSextra sub-forum, where they will be removed after 7 days
The full forum rules are here: Forum Rules, be sure to read them all regularly.
Read the manual to see if your question is answered there before posting. Many users will not reply if the answer is already available in the manual.
If your question is about troubleshooting, configuration, or tuning, you MUST include your processor type (MS-I or MS-II) and code version in your post. If your question is about PCB assembly or modifications, you must also include the main board version number (1.01, 2.2 or 3.0).
If you have questions about MS1/Extra or MS2/Extra code configuration or tuning, please post them at www.msextra.com Such questions posted here will be moved to: a temporary MSextra sub-forum, where they will be removed after 7 days
The full forum rules are here: Forum Rules, be sure to read them all regularly.
-
Mike_Robert
- MegaSquirt Guru
- Posts: 84
- Joined: Fri Apr 09, 2004 5:55 am
- Location: FL, USA
The board doesn't really warm up in a general manner, especially in the crystal mounting area. The FETs may get a tad warm but that's far from the crystal, relatively speaking. I have 20K miles on my MS without any special mounting of the crystal, just soldered and laid flat in the PCB plane. The MS box itself is mounted via a 3x5" sheet of Velcro so as to hopefully prevent any sharp vibration getting to the components. This makes it R&R easy too. At times I've thought about throwing a dab of RTV around the crystal but have decided that it probably would have failed by now so haven't. However, I'd go with the hot glue if I were you. I have it on my bench units' crystal and it seems to work fine.
-Mike
-Mike
-
boost junkie
- MegaSquirt Newbie
- Posts: 3
- Joined: Tue May 11, 2004 7:58 am
- Location: dallas texas usa
-
efahl
- Site Admin
- Posts: 102
- Joined: Mon Feb 16, 2004 3:15 pm
- Location: San Clemente, California, USA
- Contact:
You might want to be careful with that stuff. It certainly has different chemistry than normal "bathtub" RTV silicone, so as to be sensor safe (no acetic acid), but I'm not sure that makes it electronics safe. The Dow Corning electronics-safe stuff that I use is guaranteed not to attack any of the metals on PC boards, most notably copper, silver, zinc, tin or lead...boost junkie wrote:I used standard automotive rtv silicone. Haven't had any problems yet...
-
Jack
- MegaSquirt Newbie
- Posts: 34
- Joined: Sun May 02, 2004 7:34 am
- Location: Washington State - the wet side
I used hot glue.
jib
jib
1960 Triumph TR3 - To be squirted soon
1980 Triumph TR8 - Success story: http://www.msruns.com/viewtopic.php?p=142363#142363
1980 Triumph TR8 - Success story: http://www.msruns.com/viewtopic.php?p=142363#142363
-
T3Bunny
- Helpful Squirter
- Posts: 36
- Joined: Sun Nov 28, 2004 7:44 pm
- Location: Miami, Florida
- Contact:
I used "that bathtub sealant"! Just basic clear and got a tube big enough to do probally 1000 Ms ECU's for $4. I figured since the build manual just said "clear silicone" and nothing more that it would work well. So far so good.
Forget the porno mags, my bathroom is full of car manuals...
She Runs! ...sometimes
She Runs! ...sometimes
Well, I ended up getting a cheapo hot glue gun and tried that- I put a blob on my MegaStim in the empty section as a test and it stuck.. well.. like glue.. so I glued the crystal on and it all looks good- it functions fine and is very solid on the board- stiffer than I would have thought, but it sure won't be bouncing around!
Thanks for the advice!
Thanks for the advice!