p3arljam

My Feedback: (5)

I think i will grind some off but why would they make the mount with an angle where you cant put a nut?

the pope

They do it all the time especially with plastic ones . Don't stress just go with either way and it will fine . You could also add a bit of sealant , ca to help it stay tight . cheers

Hobbsy

My Feedback: (102)

Also Jam, I would lose the washers on top of the engines mounting lug, they take up thread space and serve no useful purpose.

Rudolph Hart

Pearl i've had skinnier supplied plastic mounts that look like yours and at first i thought it was just an asian sense of humour,they work fine don't get the 5" soft start grinder with cutoff wheel out yet.You don't even have to do the screws up to tight on those one's.You have concerns so bench mount the engine and run a couple of tanks thru it.Stainless bolts lock up real good in aluminium over time so don't overtighten.Post a pic of the plane so we can talk you into fitting a bigger saito single in it

SrTelemaster150

The mount beams are angled to put as much material as possible at the area that has the most stress with out adding unnecessary weight where it isn't needed.

Just use lock washers under the screw heads & back that up with some blue Loc-tite 242.

All you will accomplish by grinding flats is making stress risers at the points where you ground the mount thus weakening it..

the pope

Serious ? Im sure they will be just fine if u grind flat spots on them . Ive never had a plastic one fail let alone one with the amount of metal in it as these ones have . Maybe if you were trying to bolt a 350 chevy engine to it but a 100 saito , get real ! You luv to over complicate things for no good reason .

p3arljam

My Feedback: (5)

I think i have started a fire in this thread my apologies this is the first mount i have used without having nuts on the top end of the bolt.

FlyerInOKC

My Feedback: (6)

I will admit I would drill thru the legs use longer screw, Loctite, a lock washer under the screw head, and a lock nut/Nylock nut on the far end (without grinding a flat spot). Maybe I'm being paranoid but I haven't had an engine shake loose yet.

FlyerInOKC

My Feedback: (6)

Don't sweat it I get some of the best ideas worth stealing that way!

Jim Oliver

My Feedback: (1)

Clean threads with alcohol, add VERY small drop of BLUE Locktite per screw wait 24 hrs. and go fly

the pope

I've never had to use loctite on engine mount bolts on a glow engine . They haven't fallen off yet , l have used self tapping screws on a 54 four stroke into a plastic mount with good results as well . Haven't tried on larger engines but !! Don't worry about fire ring up anyone, some people just grind my gears and S . Telly is one of them ! If its not going on ad nauseum about ignition bla bla bla its making a paper plane sound like building the space shuttle ! Unfortunalty he wont get to read this as Im on his ignore list . Wonder why ? Cheers

Hobbsy

My Feedback: (102)

I use no washers and no Loctite, they won't come loose, honest.

acdii

Chances oft the bolts backing out of that mount are slim, but if you want added security, just use longer bolts, and nylock nuts. Once the bolt passes through the mount, put the nut over it and hold it in place until the bolt starts to thread in, then tighten the bolt, if done right, the angle of the mount will be against one flat of the nut, and that along with the nylon insert will keep the bolt in place.

RC_Fanatic

My Feedback: (1)

Loktite is your friend!

Hobbsy

My Feedback: (102)

Dan, I got the wrist pin in the ,65 loose, I made a small press using my 3" MicroMark vice, a 6x32 bolt and 1/4" hardwood block. It moved about .125" and then came loose. It now floats easily in the rod end and the wrist pin bores. It wasn't stuck all that hard, just too hard for fingers.

Rudolph Hart

Popey stop drinkin so much coffee i hate loctite

FlyerInOKC

My Feedback: (6)

I know it's dark like coffee but are you sure its just coffee?

acdii

Bit o Irish you might say

p3arljam

My Feedback: (5)

The good news Great Planes Cub with a Saito 100 is finished. The bad news the prop and nut came off two times on ground test. The engine is inverted and i have 2 line tank so i fill thru the carb line . I have an inverted saito 72 on my decathlon and never have this problem. I may have a little room to raise the tank but not much. The other issue is since the GP Cub has a recessed firewall it is almost impossible to remove the glow plug. At this point i am not sure what the best option is. I always turn the prop over by hand before trying to start it to make sure there is no hydro lock and both times the prop moved freely until i used my starter and the prop and nut came off both times from some serious backfire. What do you guys think i should do remount the engine on its side or any other suggestions.

Thanks

acdii

Sounds more like an engine issue than a tank issue if its backfiring. My Saito 100 will start with a back flip, so guessing on yours its probably too lean on the low speed setting. If the tank is too high it will flood the engine, too low and it will lean out under a half tank, but knowing that airframe, I am guessing the tank CL is just above the bar of the carb with the engine inverted.

Tune the engine with a half tank of fuel before doing anything else. The lower level of fuel will set the mixture better than with a full tank, as you can be too lean at WOT with a half tank and stall out the lower the level goes.

p3arljam

My Feedback: (5)

I took this engine to the field when i first bought it 2 months ago and bench ran it with a friend of mine who is really good with the nitro engines . We tested it up right and set the low and high speed and it ran like a champ.This is not a new engine but it is great shape and ran smoothly when we bench ran it. I did not know i was going to mount it inverted or i would have bench ran it inverted.

the pope

Stop it ! Remember O.F. , loctite is a modeling product not something u snort . No wonder u dont like it , it clogs up your sinuses ! cheers

the pope

Dont u start too . Remember its just grog until its been blessed and then its holy wine . I luv religion . Cheers

FlyerInOKC

My Feedback: (6)

Does this mean if I get my beer blessed first I can deduct it as a religious expense?

vertical grimmace

My Feedback: (1)

Saito question: On the FG 30 Gasser, what is the starting procedure for hand propping? Or do you just have to use an electric starter with it?