Had a go with a spare cylinder just to get the hang of it without risk of buggering up one of the ones I planned on re-using. That gave me the hump, so I moved onto something a bit easier and honed the cylinders instead with the honing tool I bought. So cutting them and drilling them out seems the only option. The two remaining ones I cannot back out using the two nut trick as both back off the stud. 5 came out fine, 3 are stuck fast - one of those snapped. I'd bought new exhasut studs and went to take the old ones out. I was going to lap the valves into place and set the heads up today as well. A quick disamssemble and 180 degree flip soon sorted them out! Well the con rod fairies must've popped in over night and swapped them up the other way as when I was at the point of pushing the case halves together with the sealant on, I noticed the marks on them were facing downwards. Prior to this, I had test assembled the thing at least half a dozen times and I was sure that I had the con rods the right way up.
Got the lower half of the engine assembled with gasgacinch on the case halves. Quite a productive, if not frustrating weekend on the engine this week. Would it be worth just doing new intake valves as well or trying to clean up the old ones and relapping them in? I think intake valves are around £8 each, so another £32 to do both. I was planning on getting new exhaust valves.
I will give the engine shop a ring later to see how the case and crank got on and have a chat to them. I think getting those heads cut is the right way to go. The only ridge on the barrels was oily crud, so a good clean seems like the order of the day to properly assess them along with the pistons. Heritage have suggested 1641cc pistons and barrels as a replacement for their out of stock 1584s, but I am wary still. There's no rush to buy a top-end rebuild kit apart from the fact everyone keeps selling out of them. The pistons I had last night definitely have machine marks on them running all around the barrel to the top. Yes - I've read about the 1641cc pistons being a touch thinner and sometimes having issues which has put me off of it. These are the measurements:ĭo these sound usable if I cleaned them up and out a new set of rings on them? If they do, am I far better off just getting the heads flycut for 1600 and cleaning up these pistons than buying a new top-end rebuild kit with non-German parts? I also measured one of the piston and barrels (I didn't have time to do all 4) with a digital caliper and the ring gaps with a feeler gauge (I measured the gap between the top of the ring and the piston, not the gap between the two ring ends when compressed). The piston I took a close look at looks like it will clean up alright and this is one of the other barrels that I did wipe out. Any main damage/marks are a big rust streak down one of the barrels. All the pistons have burnt oil marks either side around the gudgeon pins and are covered in crud on the head of the piston, but none have nay major scoring to the pistons or barrels.
the set of 4 that came off of the 1600 engine have dished pistons. These are the two heads, let me know if anyone spots anything alarming! The valve sizes were 35mm (must have been 35.5 and I mis-measured) and 32mm.
#Flycut tool for vw crack#
They are crack free, so getting a pair fly cut now seems a decent option. The valve seats are also a hell of a lot better than the 1600 heads I split down previously. I had a second pair of 1300 cylinder heads in the garage at my Mum's and I took a look at those tonight, stripping the valves out and cleaning up the combustion chambers to check for cracks. It does not store any personal data.Another slight twist and a shedload of questions. The cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. The cookie is used to store the user consent for the cookies in the category "Performance". This cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Other. The cookies is used to store the user consent for the cookies in the category "Necessary". The cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional". The cookie is used to store the user consent for the cookies in the category "Analytics". These cookies ensure basic functionalities and security features of the website, anonymously. Necessary cookies are absolutely essential for the website to function properly.