looking for an answer... [Archive] - Chevelle Tech

: looking for an answer...


71malibuguy
Sep 12th, 03, 9:04 AM
I have asked this many times while getting other advise and it seems never to get answered.
My question is when blocking filler or primer...

lets use a 12" board for example

1. If you have a 6" spot on the rear quarter, which way do you run the board on the spot, do you lead with the long part or travel inline, while making your X.

the area Im having trouble with is about 4" behind the deck filler and 2" down on the panel.
right where the concave body line is.. maybe this is a tough area or do I just suck at this!!!

I seem to leave too much filler in the original body line when my actual dent is above the line

I know you guys are sick of my filler questions but I need and appreciate all help I can get.

Thanks, chris

drptop70ss
Sep 12th, 03, 10:42 AM
while I am not a pro I only sand in an "X" to get panels flat while using a guide coat. The concave section of a quarter would have to be done by feel or by making a template off the good side as a guide. I wouldnt be using a long board in that area because its not flat.

71malibuguy
Sep 12th, 03, 11:04 AM
what im doin in this area ( which will be impossible to explain but ill try ) is using a 12 rigid board and running down from top to bottom in a diagnal direction holding the back up a little. It seems to work well to a certain point.

I just dont get this.. the body line is messing me up and the whole top section of the quarter is naturally domed out anyway.

I know this should not be this hard. The quarter was a new one 6 years ago replaced by a shop I told him to just hang it and paint. (I knew I would be doin the whole car in the future.) so its not like im fillin creators. just what I would consider creases from a low quality repro. (I think) This is kickin my arse.

keep sugestions comin, I will not give up on this project!

thanks, chris

71malibuguy
Sep 12th, 03, 4:14 PM
ttt
(sorry, but it's either figure this out or light a match)

Rucumn
Sep 14th, 03, 9:32 PM
If I am visualizing the same area, then you should sand in-line with the panel with a slight vertical roll into the bodyline. First sand the bulged part of the panel (below the bodyline) and get that part of the filler knocked down. Then sand the above the body line with a slight roll down into the bodyline. Always extend your sanding pattern beyond your dented area. Remember that dents carry further out into the panel than the eyes normally detect, so you must make sure that you spread your filler out past the detectable perimeter of the dent. If you are cutting down high build, then use water and position a light to look down the panel for detection of the dent.

Hope that helps. I am in NC if you just can't get it maybe sometime we will cross paths during a trip and I could help you out.

baddbob71
Sep 15th, 03, 1:47 PM
You can rough sand filler to shape on flat panels with a motion parallel with the length of the board but you will find although this makes the basic shape it will also tend to leave cut marks from the edge of the board. Sometimes best results will be obtained by shaping the filler as stated above but finish it with diagonal strokes to avoid cut marks. It also seems you are confused as to what amount of filler should be left there. Here's a tip---you can guide coat your filler with a light mist of primer to show you how things are shaping up as you sand-try it. Until you develop a feel for shapes it is sometimes better to rely on your eyes with the use of guidecoat. Put a this cotton glove on your hand and you'll be surprised what it does to improve your sensitivity. Another quick note many of the sanding blocks you buy are not perfectly flat----I dress mine on a piece of 80grit attached to flat table or similar, also round off the corners a bit. Bob

sevt_chevelle
Sep 15th, 03, 7:26 PM
Everything Bob said graemlins/thumbsup.gif

If you cant get a cotton glove which works wonders, also a thin paper shop towel works