611 Posted June 21, 2012 Share Posted June 21, 2012 (edited) Im just after a bit of advice on flywheel to crank bolts. I have an Opel Monza/Senator 3.0 flywheel and a 9" clutch for it. I was advised that it was best to get ARP bolts (as i didnt have the original ones) so i ordered some from Risse Motorsport in Germany as i was ordering some other parts. Now the flywheel has a smaller locating bolt hole and all the ARP bolts are the same size as the main bolt holes? So what's the best plan?? Andy Edited June 21, 2012 by 611 Quote Link to comment Share on other sites More sharing options...
Alf Posted June 21, 2012 Share Posted June 21, 2012 Hi Andy, I'm no expert on these but I always thought the smaller hole was for a locating dowel? If that is the case, then Andy C should be able to get you one? Cheers, Alf. PS. If you struggle, I have a few friends in the Autobahnstormers who will almost certainly have some secondhand one's, I might be able to get them at Billing for you? Quote Link to comment Share on other sites More sharing options...
611 Posted June 21, 2012 Author Share Posted June 21, 2012 (edited) Hey Alf How are things? I finaly have the bottom part of the engine build (after a small piston ring episode!) and am now trying to get the rest all finished off, but as you know there are allways lots of little things to catch you out as you go along :-) This a picture of anyC's (see below) and accoring to the old workshop book one should have a "P" marked on it as its a locating hole? and on my flywheel there is one that is a touch smaller than the other holes. Its been a long time since i did an engine and clutch so wasnt expecting this! Another thing to work out now before i can carry on with the build :-) Thanks for the billing offer, but want to sort out what to do for early next week as have monday and tuesday off and want to crack on with the engine as its holding the whole build up now ;-) How's yours coming along? Andy Edited June 21, 2012 by 611 Quote Link to comment Share on other sites More sharing options...
Alf Posted June 21, 2012 Share Posted June 21, 2012 Hi Andy, I'm not familiar with the Monza flywheel, all my dealings have been with the eight bolt 24v flywheels, that's why I wasn't sure? I can make some enquiries on your behalf if you like but doubt there's anyway I could get anything in time for you? Again, I should think Andy C would be your best bet? As for my car, I've put my back out so things have ground to a halt, I'm well under way with the painting but the weather has been against me, so again, very little progress, still hoping to get it finished for Billing.............2013!!!!!! Cheers, Alf. Quote Link to comment Share on other sites More sharing options...
andyc Posted June 21, 2012 Share Posted June 21, 2012 Hi Andy You will indeed need the P bolt but i have not been able to find any for years. All i can suggest is to give Derek down @ GM6 in Cornwall and see if he has any spares Cheers Andy Quote Link to comment Share on other sites More sharing options...
611 Posted June 22, 2012 Author Share Posted June 22, 2012 Hi Andy Thanks for the info, i have bought something from derek before so will drop him a line. Could i get the ARP bolt turned down to fit? i have a local engineering place that i have had work done before or are they too hard to machine? Thank Andy Quote Link to comment Share on other sites More sharing options...
Alf Posted June 22, 2012 Share Posted June 22, 2012 Hi Andy, I've just had a chat with my Monza expert, I'm afraid he doesn't have a spare bolt, he did say he didn't think it was that important to fit one unless the engine will be making high revs? With regard to getting your bolt turned down, I think that is a possibility, if not, couldn't the flywheel be bored out? Hope it works out in time for you, Cheers, Alf. Quote Link to comment Share on other sites More sharing options...
611 Posted June 22, 2012 Author Share Posted June 22, 2012 Hi Alf Thanks for asking for me. I popped into the engineering place on the way to work and they said no problem to turning it down a bit, so will be popping in on Monday morning. The other thought i had is if there is a locating bolt what does it do?? should the flywheel be in a particular location in regards to the crank? does anyone know? Andy Quote Link to comment Share on other sites More sharing options...
Shug Posted June 22, 2012 Share Posted June 22, 2012 I kept the flywheel bolts off the old 1.6 that is now a chinese lampost somewhere. If they are of any use, I could dig them out next weekend for you? (cant promise I will definately find the P one tho) Quote Link to comment Share on other sites More sharing options...
611 Posted June 22, 2012 Author Share Posted June 22, 2012 Hey Shug Thanks for the offer, but i think they are a different thread as mine has the frontera crank. Andy Quote Link to comment Share on other sites More sharing options...
lamchop77 Posted June 25, 2012 Share Posted June 25, 2012 The location bolt does exactly that, locates the flywheel in position mainly i, would think, so the TDC marker is in position. BUT it is also a tight fit where the other 5 are a slacker fit so it is basically acting as a dowel. If it isnt the right bolt then you could get chatter on the flywheel which could lead to sheared bolts and cataclysmic damage!!!! Don't think its ok on a low revving engine, you have loads of torque and all the drivetrain trying to to resist the turn of the engine so it could very easily move. Turning the bolt down would be ok as they are high tensile. My 2.3 has had dowels fitted so you can also do that, it isnt that expensive to have done either. HTH Chris Quote Link to comment Share on other sites More sharing options...
611 Posted June 26, 2012 Author Share Posted June 26, 2012 Hey Chris I'm having the bolt turned down as it only needs a bit taking off and after comparing the bolts to the old flywheel one for the 2.1 the arp bolts are a little bit bigger so even in the normal hole there is not that much play not like the other ones. Should that bolt go into a specific hole when setting it up? You say so the TDC marker is in position, is there a marker on the flywheel that needs to line up when the engine is set to TDC? I'm just building the engine back up now, I have the bottom end all back in and have just started to put the head back together so will need to be looking to set the engine all back up up ready for the head to go on. It's been a long time since a built an engine back up so will need to do a bit of reading through the old manual I think :-) Andy Quote Link to comment Share on other sites More sharing options...
lamchop77 Posted June 26, 2012 Share Posted June 26, 2012 The P marked bolt goes in the hole that is offset from the rest. The TDC marker is a silver ballbearing set into the flywheel on the opposite side to the clutch face. Chris Quote Link to comment Share on other sites More sharing options...
611 Posted June 26, 2012 Author Share Posted June 26, 2012 Thanks Chris Just picked up the bolt and flywheel so will have a look and hope to get it back on today! Andy Quote Link to comment Share on other sites More sharing options...
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