The desired residual bolt stress (to achieve essentially infinite cyclical fatigue life) is achieved by both specs but the 2X 90 spec does allow for less care and precision during the tightening procedure. Tightening the fresh hold down bolt and seal ring will produce the same clamping force (defined by seal ring crush thickness) regardless of which of the 2 torque specs are used. The Sprinter’s copper seat seal ring features a double convex cross section and the clamping force induced ‘crush’ creates narrow sealing flats on each side of the ring. Discuss Mercedes sprinter passenger seat removal in the alt.auto.mercedes forum at Car Dealer Forums; I have a 2002 mercedes sprinter 311 van with a double passenger seat. The driver seat is plush and comfy, although the passenger seat had less support and felt a bit less comfortable. The last Metris passenger van we tested proved able to shuttle people and cargo posthaste.
I want to preface this by saying that I'm not trying to upset or annoy people with this post. Each 90 degree rotation past 7 Nm with a new clamp bolt and clean hole results in a further 0.3mm stretch bolt yield, so my view has always been - softer composition, less crush and a little less beads of sweat on the final swing of the wrench! Elongation was approx. 0.30mm for each increment of 90 degrees of tightening rotation (after the 62 in/lb initial torque). 0.08mm crush of the seal ring as well as a steady 180-190 in/lbs torque reading during angle tightening. Obviously the final choice of wether to use the factory torque spec or the modified spec is entirely your choice, but the tests carried out below are well worth a read before you make that decision. Using my ‘test’ 647 Sprinter cylinder head, which is permanently mounted to one of my work benches, I have recently performed tests related to hold down bolt torque.
This test head features my custom carbon steel hold down threads making it ideal for these hold down bolt torque experiments because data is not compromised by any aluminum thread deformation or failure. When drilling/tapping take care to not descend deeper in the head than you need to and break into the water jacket. Inspect it regularly and if there are slightly deeper grooves remaining keep going with new paper until clean and flat. Sophisticated look for all-Fresh Mercedes-Benz A-Class sedanThe premier formal image of the all-Fresh Mercedes-Benz A-Class sedan has been leaked as portion of a promotional billboard ahead of its 2018 Beijing motor display uncover tomorrow, revealing a mature Fresh look that going to put the Audi A3 sedan on notice. At first glance, this sedan appears to be everything but the enthusiast's choice. It is available on request for the new SL for the first time anywhere in the world, and it allows drivers to operate the boot lid without using their hands. The CLS rewards drivers with comfortable and composed handling, as well as zesty engine performance.
But today has been very constructive, we concentrated on our race set-up, and both our drivers seem pleased with their cars. Plus, as is all the rage in most German premium cars today, you get multi-color ambient lighting to set the proper mood in the cabin. Surprising enough, demand escalates for the more expensive types and the limited production of these fine cars makes them even pricier. 5.5-liter V8 engine even developed 650 hp (478 kW). A host of available safety and convenience features includes full LED lighting, lane-departure warning, and adaptive cruise control that can automatically brake to maintain following distance with traffic ahead even when the truck is fully loaded. The Honda washers are ‘softer’ (unmeasured science, but you can tell) and I have always consciously never bothered with the extra and last 90 degrees crank. I am certainly happy with our performance which is a huge step forward, considering where we were in qualifying here last year. No, Cadillac did. They brought a spanking new CTS Sport Wagon last year and the maniacal 556-horsepower CTS-V for 2011. Acura imported the European-market Honda Accord Tourer, flipped the "H" logo upside down, and called it a day. Now your injector is back together, in the cylinder head and clamped down, reconnect the steel fuel supply hose and electrical connector and build up the inlet manifold and turbo pipework.
This dedicated ‘test’ cyl head has been quite useful in my repair tooling fabrication. All should now be well with the repair and you have carried out a major maintenance repair saving you hopefully quite a lump of cash. As many of you know I have developed in-house tools and fixtures for removal of broken hold down bolts, repair to stronger than new stripped hold down threads, and various custom black death repair tools for my in-house use. A flexible payload and battery concept moreover allow adaptation to individual needs for practical use. If you had a problem with the thread you can use this type of kit or as a more desperate measure carefully tap out the hole to 8mm using a long series drill and tap, if you do this you will also have to drill out the clamp bracket to accept the new diameter bolt. Spark plugs typically need to be replaced every season or 25 hours of use. Disconnected, dirty or fouled spark plugs are common causes for engines that won't start. Start and test the engine. Be sure you test your cyl head’s bolt hole threads by using a wire brushed used hold down bolt with an indexing paint mark, turning in by hand while counting turns, to assure threads are clean and bore is unobstructed to full depth.
