Timing belt (1 Viewer)

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Not saying what 83BJ60 says is wrong but there are special products to repair f.i. plastic (ABS) bumpers.
Think it's less complicated doing a repair with that kind of stuff.
Amongst others, 3M has those kind of products. As an example look here
Hmmm.... For a small job I would definitly not bother even trying to get these specialty products, which are most probably going to be very difficult to get except in specialized industrial outlets big cities.

I have had lots of experience gluing, cutting and shaping ABS, scraps of which can be easily acquired from anyone working in construction. I have made ABS battery trays for my old BJ60n when the OEMs would rust through after only 6 years. ABS glues to itself extremely well by actually melting, makes a very, very tough repair that cannot be taken apart. ABS is rigid at normal temperatures but becomes pliable at 300 defrees fahrenheit so it's easy to bend after putting in an oven or using a temperature controlled air gun on it for 20 minutes. It's easy to get and easy to work with with little extra expense in materials and tools.

As for gluing, if lacquer thinner was not so easily available everywhere instead of ABS glue, I would have said to use ABS glue as a base for the ABS paste, it's stronger, but it's also very yellow and so wouldn't make a nice repair. Lacquer thinner on the other hand is transparent. The only problem with just using thinner is that it makes a very poor glue as it evaporates before having sufficient time to fuse the ABS. Making an ABS "paste" solves that problem. The active solvent in lacquer thinner is toluene, and it easily disolves the S in ABS (Styrene).

Anyway, I'm just saying that ABS is easy to work with using commonly available, generic materials.

PS Kudos for the moderators for so quickly removing the spam post :)
 
This stuff to repair ABS bumpers is easy to get over here. Either parts-shop or body repair shop.

I agree that for smaller jobs it can be relatively costly OTOH toluene is regarded to be highly related to cancer....
If one uses it on just one job there won't be a high risk level, but if you can avoid it. ;)
 
I agree about toluene being very toxic.... And benzene as well!!! We used to handle it all the time in school in chemistry class!

As a matter of fact I haven't been able to find any toluene on store shelves for at least 15 years, it probably went the way of trichloroethylene, which you used to be able to buy in hardware stores along with caustic soda, creosote and DDT ;) Now they are all classified as dangerous materials and you need a license from the environment ministry to be able to buy (which is impossible for do-it-yourselfers)...
 
I agree about toluene being very toxic.... And benzene as well!!! We used to handle it all the time in school in chemistry class!

As a matter of fact I haven't been able to find any toluene on store shelves for at least 15 years, it probably went the way of trichloroethylene, which you used to be able to buy in hardware stores along with caustic soda, creosote and DDT ;) Now they are all classified as dangerous materials and you need a license from the environment ministry to be able to buy (which is impossible for do-it-yourselfers)...

Another name for toluene is methylbenzine which is the major ingredient in gasoline;)
Most people absorb it through cigarette smoke :D

http://www.getex.com.au/toluene.php
 
I did manage to fix up my cover w/ acetone and abs scrap (old window switches from a "spare" master switch cluster).

It is a slow, stinky, ugly process... but it works.
Pics coming soon.
 
Acetone works OK, but it tends to dry too fast and to crack ABS plastic... That's why I didn't suggest it... I've tried it before!!!
 
huh. seemed to work fine (so far). If I had access to better chemicals, I'd have used something fancier.

I've heard good things about ABS glue (sold @ hardware store for pipes)
 
huh. seemed to work fine (so far). If I had access to better chemicals, I'd have used something fancier.

I've heard good things about ABS glue (sold @ hardware store for pipes)
Yes, it's the bst, but it dries yellow, which is not very good looking ;)

Congrats on your repair :)
 
Great pictures! Glad it worked out so well :)
 
thanks!
I was pleasantly surprised at how well it worked out.
If I were to do it again, I'd be more careful with masking it off (and pressing the masking tape into the grooves on the cover more completely).
and I'd be sure to make the goo about as thick as plastic cement-- pretty thick. Otherwise it runs a lot and tends to flash-evaporate before it really gets into cracks and such.
 

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