connecting rod bolts

[jake zak]

Hi
I think I posted in the wrong forum before...
I hope someone can shine some light on this for me..

I need connecting rod bolts for my 1985 Turbo diesel MF engine that I am overhauling..
book states that there are stretch bolts and should not be reused.....
NOW ..I am trying to get them.BUT all they list is for gas engines and have no info on diesels..
QUESTION...is the connecting rod bolts the same for 1.6 Ltd and the 1.8L gas?
may be someone has gone through this and can saver me time..
thanks

[myvolkswagen]

This is really old but I'd like to know. Dealer said $96 for all of them which is stupid so I bought arp but is there a source for these?

[R.O.R-2.0]

i dont think that these engines got stretch bolts until the late 80s..

i know most of us have been re-using rod bolts for a long time, with no ill effects..

theres a way to tell if they are stretch bolts or not, i just dont remember what it is..

[410]

ID parts sells connecting rod bolts for all tdis with rotary pumps including ahu and iz.  I know the 1.9td engine code aaz also used these bolts but I don't know if they are the same as the 1.6td.  They're listed as 8x1x45mm.  Not cheap at almost six bucks a piece times eight but if it prevents a rod from leaving the engine then they're well worth it. 

[R.O.R-2.0]

ID parts sells connecting rod bolts for all tdis with rotary pumps including ahu and iz.  I know the 1.9td engine code aaz also used these bolts but I don't know if they are the same as the 1.6td.  They're listed as 8x1x45mm.  Not cheap at almost six bucks a piece times eight but if it prevents a rod from leaving the engine then they're well worth it. 

im almost positive that the 1.9 bolts are different from the 1.6 bolts..

1.9 bolts ARE FOR SURE stretch bolts.. only SOME 1.6's had stretch bolts.. and i think it was only the late 1.6's

[410]

This is really old but I'd like to know. Dealer said $96 for all of them which is stupid so I bought arp but is there a source for these?

myvolkswagon, or anyone really, can you give us the specs on the 1.6 con rod bolts?  It would be good to know.  I don't have any 1.6's torn down right now.

[R.O.R-2.0]

This is really old but I'd like to know. Dealer said $96 for all of them which is stupid so I bought arp but is there a source for these?

myvolkswagon, or anyone really, can you give us the specs on the 1.6 con rod bolts?  It would be good to know.  I don't have any 1.6's torn down right now.

i can give you specs for the 1.5/early 1.6 rod bolts.. i have a crushed 1.5 rod hanging on my wall..

[RadoTD]

The way I've always understood it is that a stretch bolt can't be rated as a 10.9 or 12.9 grade etc as it's a different steel than in those ratings as bolts.

Therefore, if on the head of the bolt, it has a 10.9 or 12.9 stamp, I think it's quite safe to say it's NOT stretch. But, if you can't find either of those grades stamped on, I would assume it is.

When I rebuilt my engine, I put new OEM stretch bolts in, but I'm actually tempted to pull those out and put a 12.9 grade bolt in. That way I actually know how strong the steel is holding them on and I know a 12.9 isn't going to let go at 6000rpm's. I'm probably just paranoid though.

[RabbitJockey]

i put arp bolts in my car... they're cheaper than the oem bolts and better, so why not, and i'm pretty sure the ones i used were the same as for a g60

[Mark(The Miser)UK]

8)If the head of the conrod bolt is hemispherical, and a 15mm threaded portion, then it is  high tensile.
Conical headed is the later stretch with a 25mm threaded portion