welding engine compartment seams
Has anybody welded their engine compartment seams?
I have been advised that the job should be done with the chassis "under load." I assume that this means that the weight of the engine should be applied during the welding. I have also been advised that normal arc welding is not sufficient for this application. The reason being that it would heat the sheet metal surrounding the welds. Consequently the metal surrounding the welds would be weakened negating the rigidity gained through the welding. What type of welding is advised for this? TIG? MIG?
I have also thought about alternative methods of re-enforcing the engine compartment such as using rivits when it is possible and using carbon fiber or fiberglass directly on top of the sheet metal. I dont know if the epoxy would hold sufficiently to the sheet metal though.
What about welding in tubes to strengthen the area. I guess it would be hard to find space for that
What, if any, of these ideas seem to be good ideas?
"Oh I´ve got lots of great ideas...problem is most of them SUCK!"-George Carlin
I have been advised that the job should be done with the chassis "under load." I assume that this means that the weight of the engine should be applied during the welding. I have also been advised that normal arc welding is not sufficient for this application. The reason being that it would heat the sheet metal surrounding the welds. Consequently the metal surrounding the welds would be weakened negating the rigidity gained through the welding. What type of welding is advised for this? TIG? MIG?
I have also thought about alternative methods of re-enforcing the engine compartment such as using rivits when it is possible and using carbon fiber or fiberglass directly on top of the sheet metal. I dont know if the epoxy would hold sufficiently to the sheet metal though.
What about welding in tubes to strengthen the area. I guess it would be hard to find space for that
What, if any, of these ideas seem to be good ideas?
"Oh I´ve got lots of great ideas...problem is most of them SUCK!"-George Carlin
Agree Mats...If you are going to weld up the seams,do it scientifically.
I spent 2 week of evenings gas welding a gtv shell.It was a vast improvement to a regular non welded shell on the road,but be aware that by welding up a shell you are playing dangerously with the crumple zones of the car.
I had a bad front end crash 5 years ago in my white Giulietta and believe me when I say I appreciated the designers efforts into designing the crumple zones.I hit a stationary bus on a freeway at 140km/h and the car behaved as it should have.The roof buckled at the posts,the front end absorbed the impact by folding down and even the engine did what it was supposed to do.It went back and under the car.The propshaft tunnel folded at the rear by the clutch unit and all along the car you could see how the impact had been absorbed-This will not happen on a fully seam welded chassis.I would suggest a full 6 point race harness and a fia spec seat in a seam welded car.I was wearing the std issue Alfa seatbelt and it still stretched far enough for me to hit the steering wheel-I have new respect for the safety aspect of the cars......
I spent 2 week of evenings gas welding a gtv shell.It was a vast improvement to a regular non welded shell on the road,but be aware that by welding up a shell you are playing dangerously with the crumple zones of the car.
I had a bad front end crash 5 years ago in my white Giulietta and believe me when I say I appreciated the designers efforts into designing the crumple zones.I hit a stationary bus on a freeway at 140km/h and the car behaved as it should have.The roof buckled at the posts,the front end absorbed the impact by folding down and even the engine did what it was supposed to do.It went back and under the car.The propshaft tunnel folded at the rear by the clutch unit and all along the car you could see how the impact had been absorbed-This will not happen on a fully seam welded chassis.I would suggest a full 6 point race harness and a fia spec seat in a seam welded car.I was wearing the std issue Alfa seatbelt and it still stretched far enough for me to hit the steering wheel-I have new respect for the safety aspect of the cars......
French cars are shit and shit expensive to service and bloody awful and unreliable and expensive and friends don't let friends drive french cars and you wait years for parts.
MMmmm,maybe got a bit too enthusiastic here.Read Zambone`s other thread and I think he wants advice on strenghtening the chassis for coil overs........
French cars are shit and shit expensive to service and bloody awful and unreliable and expensive and friends don't let friends drive french cars and you wait years for parts.
Suspension
Finally worked out why you got such a bent sense of humour Baz !!
Transaxle Alfas Haul More Arse
Suspension
Sanity Baz is a relative thing. That is not to say some of your relatives have more that you. Frankly, I wouldn't know but what I strongly suspect is that your Guru cousin over there in sunbaked Greece has a couple of cuttlery items missing from the picnic set!
...I promise it's the last off topic entry from me.
...I promise it's the last off topic entry from me.
Transaxle Alfas Haul More Arse
Coilovers and seam-welding is only an option for a pure race build as far as I'm concerned and that means full rollcage...
Remember that welding the car means more weight, it also moves the forces in the body = cracks right next to the strong area if done incorrectly.
Remember that welding the car means more weight, it also moves the forces in the body = cracks right next to the strong area if done incorrectly.
Mats Strandberg
-Scuderia Rosso- Now burned to the ground...
-onemanracing.com-
-Strandberg.photography-
GTV 2000 -77 - Died in the fire.
155 V6 Sport -96 - Sold!
-Scuderia Rosso- Now burned to the ground...
-onemanracing.com-
-Strandberg.photography-
GTV 2000 -77 - Died in the fire.
155 V6 Sport -96 - Sold!
Hey Mats, being Sunday today, I took the family out for a cheap (heheh!) lunch near the beach (where else?). Its a really hot day, everybody with windows shut and A/C full blast, except the dumb asssholes with jeeps, spiders and other topless toys driving with the sun boiling whats left of their empty skulls! And, on the beach...string bikini big-time show...so hey, you know what you can do with your seam-welds?? (borrow some Vaseline from Barry!)
Eat your heart out MD, I know this is winter coming down under, no more stringy beavers, heheh!
Jim K.
Eat your heart out MD, I know this is winter coming down under, no more stringy beavers, heheh!
Jim K.
Yup,This poor guy is definately not the brightest light in the box.....Only a few pieces short, MD??Hey Jimgreek,your ok man,your ok.......I think..........
Mats,I would do stuff like that just to have a good road car.....but ,yes,you are right there....
Mats,I would do stuff like that just to have a good road car.....but ,yes,you are right there....
French cars are shit and shit expensive to service and bloody awful and unreliable and expensive and friends don't let friends drive french cars and you wait years for parts.
Suspension
I get the distinct feeling that the Forum is mellowing, sort of evolving, into a very palatable mixture of luney tunes and fact files and what a great development that is. Good comradeship and Alfa's. Does it get better than that?
Sure it is rewarding to read entry after entry about Alfa this and that but it is a buzz to read a bit of lunacy every now and then just to put a human touch to all this talk about machines.
Thanks for putting up with my half baked contributions but to be truely warped, you need live in an olive grove and sniff bikini strings all day long.
Sure it is rewarding to read entry after entry about Alfa this and that but it is a buzz to read a bit of lunacy every now and then just to put a human touch to all this talk about machines.
Thanks for putting up with my half baked contributions but to be truely warped, you need live in an olive grove and sniff bikini strings all day long.
Last edited by MD on Tue Jun 07, 2005 11:07 pm, edited 2 times in total.
Transaxle Alfas Haul More Arse
Yeeeh!!MD for president!!Of what though??
Do you guys realize that its mostly a demented Aussie,wierdo Greek, the cool Swede and a very forthright Sarf Efrikan contributing here??The other fellows must be mortified and shocked at our antics..
I must say you chaps are true gentlemen and scholars and there are very few of us left.................................................
Do you guys realize that its mostly a demented Aussie,wierdo Greek, the cool Swede and a very forthright Sarf Efrikan contributing here??The other fellows must be mortified and shocked at our antics..
I must say you chaps are true gentlemen and scholars and there are very few of us left.................................................
French cars are shit and shit expensive to service and bloody awful and unreliable and expensive and friends don't let friends drive french cars and you wait years for parts.