I filed flutes in an old head bolt to make it into a cleaning tap.
okay well heres the deal i bought the car for $500 the engine that was in it the block had a broken rod the go threw in 2 other spare 1.5L diesels one complete and the other was just a tranny and block so what i did was i took the head that was on the car orignially got all the valves and everything re done on that
and i took of the blocks that i cranked and it was free from binds and what not and i didnt do anything to the block except put on a new clutch kit and oil pan i ... i probably should of thought this wasnt right and stopped but i kept going and i torqued them all to 36 or whatever the book says.. do you think maybe because they were hanging up they might of been torqued but it was not accurate reason for not having the compression?
Quote from: vw-tim on June 28, 2012, 11:12:26 pmokay well heres the deal i bought the car for $500 the engine that was in it the block had a broken rod the go threw in 2 other spare 1.5L diesels one complete and the other was just a tranny and block so what i did was i took the head that was on the car orignially got all the valves and everything re done on that Got exactly what redone?Was it pressure tested?check it for warpage just in caseWas valve clearance checked? make sure there is some clearance with the cam lobes pointed up.check the one from the donor block for a big warp at the middle, or a crack to H2o.Never presume that because a machine shop did work that it was done right.Quote from: vw-tim on June 28, 2012, 11:12:26 pmand i took of the blocks that i cranked and it was free from binds and what not and i didnt do anything to the block except put on a new clutch kit and oil pan i ... i probably should of thought this wasnt right and stopped but i kept going and i torqued them all to 36 or whatever the book says.. do you think maybe because they were hanging up they might of been torqued but it was not accurate reason for not having the compression? clean it well, and measure stickup of all 4 pistons very carefully. if this block previously hydro locked in these 2 adjacent holes, the rods may be quite bent. all 4 should spec for the same head gasket thickness at the least.What is the procedure you are currently using to tighten the head bolts?IMO ring wear in 2 cyls is not the most likely thing.
Stretch bolts tighten differently form non-stretch ones, and the only torque number you had mentioned was 36 which isn't right.So they didn't surface the head, replace guides, grind or replace valve seats, pressure test set valve face depth, set precup stickout, check for collapsed lifters...
Stretch bolts tighten differently form non-stretch ones, and the only torque number you had mentioned was 36 which isn't right.
Where are you getting the head torque spec from? The 1979 diesel Bentley says to torque in sequence to 22 ft lbs, then in sequence to 43 ft lbs, then in sequence to 61 ft lbs. Then after 1000 MILES or 1500 KM in reverse sequence loosen all of them 30°. Then in sequence tighten if cold to 61 ft lbs, if hot to 68 ft lbs.
...BTW your Bieber avatar is awesome.-Malone
There probably isn't much to compress with both valves closed.