Engine Mount Holes on engine case

[CHARLES DEBOER]

DO I HAVE A BAD ENGINE CASE??  My full case 1/2 VW (Cassler) has a boss with threads in the top hole starboard side (right) when installed looking from pilots seat.  The port side (left) does not have this boss nor does it have threads.  ANY HELP?

[Poorman2]

Charles, My block is the same way as yours. It is supposed to be that way. On the VW the starter bolt had a flat on one side where it went through the starter, transaxle and engine. It was a long bolt with a nut on it. The side with the nut built in the case just had a long bolt. The threads are metric. In another post, I think Bob gave you information about the bolts. I hope this helps.

[Steve]

This is what Joe Engelman is doing for motor mount bolts attached:

[CHARLES DEBOER]

Steve, the Eagleman stud looks great ,but I don't have access to a lathe nor do I have the skills to fabricate.  IS THERE A SUPPLY OF THESE FROM JOE?

[Steve]

Steve, the Eagleman stud looks great ,but I don't have access to a lathe nor do I have the skills to fabricate.  IS THERE A SUPPLY OF THESE FROM JOE?

Charles: I know Joe has done alum castings for the oil filter & crankcase breather but whether they are for sale or the other parts is a question... He is listed as Engelman Engineering & Street Rod Specialties, Independence, MO . . .

[CHARLES DEBOER]

STVE, WHAT HAS EVERYONE BEEN USING?

[CHARLES DEBOER]

Charles: I know Joe has done alum castings for the oil filter & crankcase breather but whether they are for sale or the other parts is a question... He is listed as Engelman Engineering & Street Rod Specialties, Independence, MO . . .

STEVE, I TRIED TO CONTACT JOE BUT THAT BUSINESS IS NO LONGER IN SERVICE.

[Dan_]

 STEVE, I TRIED TO CONTACT JOE BUT THAT BUSINESS IS NO LONGER IN SERVICE.

They give a ph# on FB...  However it may be what you tried already.



https://www.facebook.com/pages/Engelman-Engineering-Street-Rod-Specialties/146811345363341

[CHARLES DEBOER]

They give a ph# on FB...  However it may be what you tried already.

YES, THAT IS THE NUMBER I CALLED.  I PURCHASED SOME GRADE #8 METRIC BOLTS 10mm, 3 1/8 INCHES LONG WITH COURSE THREAD.  I'LL SEE IF THEY BOTTOM OUT ON THE TWO BOTTOM ENGINE BOLT HOLES.

[Steve]

They give a ph# on FB...  However it may be what you tried already.

YES, THAT IS THE NUMBER I CALLED.  I PURCHASED SOME GRADE #8 METRIC BOLTS #10, 2 INCHES LONG WITH COURSE THREAD.  I'LL SEE IF THEY BOTTOM OUT ON THE TWO BOTTOM ENGINE BOLT HOLES.

Charles: Leonard in the past has advised using the stock bolts which are grade 5 and NAPA grade 5 is what I bought and used without a failure in service... More than one flyer has broken bolts including Engelman - I would go with what the designer recommends... In addition to Engelman other builders have redesigned the mount workings - the key thing about the Milholland mount is to have the inner alum/nylon bushing working freely and the 4 mounting bolt grips on the rubber bushing evenly tensioning the working assy's...

Be cautious about running those bolts deep into the stud holes - the cases I've worked with didn't have clean threads toward the bottom and something will break if forced... I ran my bolts in about 1/2 - 3/4 inch or the distance the original bolt is dimensioned if you have them...
Steve

[CHARLES DEBOER]

OK I'LL BUY NAPA GRADE #5 X 10 mm, COURSE THREAD.  I'LL SEE HOW FAR THE BOLT THAT I BOUGHT WILL GO INTO THE BELL HOUSING AND PURCHASE A LENGTH THAT WON'T ALLOW THEM TO BOTTOM OUT.  MY ALUMINUM SPOOLS SLIDE FREELY INSIDE THE STEEL MOUNTING TUBES WELDED TO THE .063 GUSSETS AT STATION #1.

DO I NEED TO INSTALL THEM WITH RED OR BLUE LOC TIGHT?? OR SOME SORT OF THREAD LOCK?

[Steve]

DO I NEED TO INSTALL THEM WITH RED OR BLUE LOC TIGHT?? OR SOME SORT OF THREAD LOCK?

I just witness marked them as you will be adjusting them for a while: http://www.chiefaircraft.com/torque-seal-r.html

[CHARLES DEBOER]

I tried to buy grade #5, 10 mm, 3 1/8 inch bolts at NAPA but they only carried grade #8.  I'll have to find another source. Here are some pictures using the wrong bolts.

[CHARLES DEBOER]

DO I NEED TO INSTALL THEM WITH RED OR BLUE LOC TIGHT?? OR SOME SORT OF THREAD LOCK?

I just witness marked them as you will be adjusting them for a while: http://www.chiefaircraft.com/torque-seal-r.html

I WENT TO THE WEB SITE ABOVE BUT THEY WANT A $20 MIN ORDER.  I'LL CHECK OUT AIRCRAFT SPRUCE.

[Bob S.]

Just curious....WHERE does the threaded part of your bolts end/start? IF you are going to have a bolt fail, it will most likely fail in the threaded part...
I would swap those bolts out for AN bolts and have the threaded part as close to the nut as possible....

The bottom holes might need to be re-threaded with a Heli-coil to close up the gap. THAT's why I used studs on the bottom and put the nuts inside the cabin for those two and safety wired them. I double-nutted the top two. I also removed that steel insert on the right top engine mount hole...

Bob