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I know ive asked this before, but how do you time up the cam on these? Theres a "dimple" on the cam pulley which I'm sure is meant to line up with the edge of the rocker cover but when I did that the piston hit the valves when I turned it over by hand. Theres also a white notch with O T stamped on the cam pulley. With this at the top or "On Top" it looks to be timed up correctly, it didnt hit valves when turned over by hand and then on the starter. Sounded ok too.
The bottom end is timed up ok with the notch on the bottom pulley next to the timing mark on the cam belt cover plus the white mark on the flywheel is lined up with a timing mark on the bellhousing.
The haynes manual is next to useless for this kind of routine work!
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1987 Maestro 1.6 HL perkins diesel conversion 1986 Audi 100 Avant 1800cc on LPG 1979 Allegro Series 2 special 4 door 1500cc with vynil roof. IN BITS. HERITAGE ISSUES.
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mrj
Posted a lot
Posts: 1,662
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on my Passat i have the same engine , here are some pics : this is the crank pulley... it is important to use the markings on the rear of the cam pulley ! and then there is the other pulley for the idler, take care that the distributor looks like this, there is a small mark (red circle), the finger should point on this. This is cylinder 1; cylinder one is the one at the cam pulley (on french cars its different...) to be 100% sure that you have OT in the 1st cylinder, check the cam on cyl.1 : and also make sure, that the tensioner looks like this : the core (?) must be from solid metal, there are cheap tensioners on the market, where the core is made out of the same material as the tensioner, they die pretty fast....
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- 1971 VW 1600 TL Fastback - 1978 Passat GLS Variant - 1980 Audi 100 5E - 1981 VW aircooled panel van (sold) - 1983 VW Jetta Mk.I - 1984 VW Polo Coupé - 1984 VW Passat hatchback - 1987 VW Passat Variant - 1987 VW Passat hatchback - 1988 VW T25
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Thanks for that, the audi is currently blocked in my garage and therefore impossible to work on but Ill dig it out and check it over on Saturday. I wonder what the "OT" markings on the front of the cam pulley mean?
Those pics really have been alot of help!
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Last Edit: Nov 4, 2008 18:06:59 GMT by Lankytim
1987 Maestro 1.6 HL perkins diesel conversion 1986 Audi 100 Avant 1800cc on LPG 1979 Allegro Series 2 special 4 door 1500cc with vynil roof. IN BITS. HERITAGE ISSUES.
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mrj
Posted a lot
Posts: 1,662
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Thanks for that, the audi is currently blocked in my garage and therefore impossible to work on but Ill dig it out and check it over on Saturday. I wonder what the "OT" markings on the front of the cam pulley mean? Those pics really have been alot of help! OT means the highest point of the piston (i think TDC or similar in english ?). There are to markings at the flywheel, one is OT , the other is the ignition (7° or something like before OT). It is easier to see the marking on the front than on the flywheel, if you use the ignition mark then you could get into trouble But normally nothing happens when the cambelt snaps, the carbed engines don't make problems here. By the way, does you engine already have hydraulic tappets ? I think they changed it in 85/86, wouldn't be good to put a hydraulic tappet head on , when the engine itself didn't have them.... it is a DS engine code ? One of the best 4pots they did in those cars.... in the Passat it's much better than the fuel injected engine (same BHP, but more torque and less fuel consumption).
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- 1971 VW 1600 TL Fastback - 1978 Passat GLS Variant - 1980 Audi 100 5E - 1981 VW aircooled panel van (sold) - 1983 VW Jetta Mk.I - 1984 VW Polo Coupé - 1984 VW Passat hatchback - 1987 VW Passat Variant - 1987 VW Passat hatchback - 1988 VW T25
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Ok, in my excitement at those pics I went outside, unpacked the Audi from the garage and checked the timing. It was timed up correctly but the tensioner was on back to front!
My engine doesnt have hydraulic tappets and I thought my new head did but now I'm not so sure, it uses the same type of tensioner as the old head, not an automatic type. The number on the side of the head is 026 103 373 AA, whatever that means! WHy should I stick with the solid tappet type? I had heard hydraulic types were better as they are quieter.
I can say that the valves definately hit the pistons on this engine. When I tried to turn the engine over by hand initially it was incorrectly timed up and it locked when the valves and pistons collided.
Ill find out the engine code, where can I find it?
TDC= Top Dead Centre so same as OT I guess. Ill look out for OT on other German engines!
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1987 Maestro 1.6 HL perkins diesel conversion 1986 Audi 100 Avant 1800cc on LPG 1979 Allegro Series 2 special 4 door 1500cc with vynil roof. IN BITS. HERITAGE ISSUES.
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murran
Part of things
Posts: 610
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if the marks are confusing you then ignore them time the block so no.1 and 4 pistons are at their highest position and check the cam lobes on no.1 are both up and equal. don't ignore the no.1 mark on the dizzy tho. rotor arm needs to be pointing at it. people like either the solid tappet engine or the hydraulic tappet one. haiving owned one of each id say i like the earlier one better seemed more "peppy" somehow.
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mrj
Posted a lot
Posts: 1,662
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Ok, in my excitement at those pics I went outside, unpacked the Audi from the garage and checked the timing. It was timed up correctly but the tensioner was on back to front! My engine doesnt have hydraulic tappets and I thought my new head did but now I'm not so sure, it uses the same type of tensioner as the old head, not an automatic type. The number on the side of the head is 026 103 373 AA, whatever that means! WHy should I stick with the solid tappet type? I had heard hydraulic types were better as they are quieter. I can say that the valves definately hit the pistons on this engine. When I tried to turn the engine over by hand initially it was incorrectly timed up and it locked when the valves and pistons collided. Ill find out the engine code, where can I find it? TDC= Top Dead Centre so same as OT I guess. Ill look out for OT on other German engines! there is no huge difference (in my opinion) having engines with/ without hydraulic tappets; but you can't mix blocks/heads . So if you have had hydraulic tappets, then the new head also must have them ! There is a difference in the oil system, and the head gasket is different too ! I am not 100% sure, but I think that from 85 onwards they had hydraulic tappets, probably the VIN of your car could help here. And from which year was the donor head ? Usually engines with hydraulic tappets have an orange sticker on the rocker cover, did you see anything like that ? The engine code is on the block, between cylinder 2 and 3; you also find this code on a sticker in the trunk (as long it is still there). Should be a DS, though there was another engine available in the Audi 100 , which was also a 1,8l, but ith 75 BHP.
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Last Edit: Nov 5, 2008 5:11:33 GMT by mrj
- 1971 VW 1600 TL Fastback - 1978 Passat GLS Variant - 1980 Audi 100 5E - 1981 VW aircooled panel van (sold) - 1983 VW Jetta Mk.I - 1984 VW Polo Coupé - 1984 VW Passat hatchback - 1987 VW Passat Variant - 1987 VW Passat hatchback - 1988 VW T25
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I bought the head from ebay so I don't know what what car it originally came from. As far as I know my engine had a solid tappets as its an early 1986 car and from what ive been told they swapped to hydraulic engines in late 1986. I was told the hydraulic heads were a straight swap! If the engine still isnt right after all this I'm going to drop the Audi off a car ferry into the north sea. New head.. Old.. Look the same to me.. but then I'm no expert. Please work for me Herr Audi! On a brighter note ive scored a set of brand new lowering springs from ebay. Can anybody guess how much I paid for them?
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Last Edit: Nov 5, 2008 20:31:04 GMT by Lankytim
1987 Maestro 1.6 HL perkins diesel conversion 1986 Audi 100 Avant 1800cc on LPG 1979 Allegro Series 2 special 4 door 1500cc with vynil roof. IN BITS. HERITAGE ISSUES.
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mrj
Posted a lot
Posts: 1,662
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ok, they changed to hydraulic tappets late 1985; and i think i kno how to spot the difference easily; compare the number of cam shaft bearings; i think that the heads with tappets have one less than the ones with solid tappets.... i am going to find out... wouldn't be nice for the north sea
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- 1971 VW 1600 TL Fastback - 1978 Passat GLS Variant - 1980 Audi 100 5E - 1981 VW aircooled panel van (sold) - 1983 VW Jetta Mk.I - 1984 VW Polo Coupé - 1984 VW Passat hatchback - 1987 VW Passat Variant - 1987 VW Passat hatchback - 1988 VW T25
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£100? ? Look like the same heads to me.
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1984 Golf MK2 GTI 2008 Golf MK5 TSI
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1987 Maestro 1.6 HL perkins diesel conversion 1986 Audi 100 Avant 1800cc on LPG 1979 Allegro Series 2 special 4 door 1500cc with vynil roof. IN BITS. HERITAGE ISSUES.
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mrj
Posted a lot
Posts: 1,662
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[/IMG] [/quote] no need to worry, the missing cam bearing points to a hydraulic tappet engine , now confirmed
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- 1971 VW 1600 TL Fastback - 1978 Passat GLS Variant - 1980 Audi 100 5E - 1981 VW aircooled panel van (sold) - 1983 VW Jetta Mk.I - 1984 VW Polo Coupé - 1984 VW Passat hatchback - 1987 VW Passat Variant - 1987 VW Passat hatchback - 1988 VW T25
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filmidget
East Midlands
Mostly Lurking
Posts: 1,652
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Indeed, that is a hydraulically head At least you didn't post an "Argh, both my heads are knackered 'cos a bearing cap is missing" thread, like many many people do Told you already, I am a phone call away form an 99% certain buyer for that car should you give up... (and that's if I don't have it)
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'79 MG Midget 1500 - Still patiently awaiting attention '02 Vauxhall Astra 1.8 Elegance(!) - Better than you might think '03 Mazda MX5 - All new and shiny looking (thanks to Antony at Rust Republic) '09 Renault Clio - Needs to go.
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Yay, thanks for that mrj! Told you already, I am a phone call away form an 99% certain buyer for that car should you give up... (and that's if I don't have it) Thanks but unless you have about £1000+ burning a hole in your pocket then ill have to pass.... .........ill bear you in mind though. Anyway, none of you have guessed how much I paid for my new lowering springs!
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Last Edit: Nov 7, 2008 19:45:26 GMT by Lankytim
1987 Maestro 1.6 HL perkins diesel conversion 1986 Audi 100 Avant 1800cc on LPG 1979 Allegro Series 2 special 4 door 1500cc with vynil roof. IN BITS. HERITAGE ISSUES.
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£12.89
looks like it should be fine then, get it crancked up!
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"quote hairnet"
I'm not paying nine pound for a pi$$!
[/quote]
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£12.89 looks like it should be fine then, get it crancked up! Very close! £12.46 all in. Postage £12.45, springs 1p. CASHBACK.
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1987 Maestro 1.6 HL perkins diesel conversion 1986 Audi 100 Avant 1800cc on LPG 1979 Allegro Series 2 special 4 door 1500cc with vynil roof. IN BITS. HERITAGE ISSUES.
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feckin bargainous!!! does it run yet?
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"quote hairnet"
I'm not paying nine pound for a pi$$!
[/quote]
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Ive been busy on Saturday emptying my wallet and beavering away on the Audi's engine. Ive raided the local scrappy and liberated a standard carb and air filter from an Audi 80. It may seem like a backwards step to fit the standard zenith(?) carb but its got a manual choke to make switching from running on petrol to gas much easier, it also makes fitting the gas mixer to the air intake alot simpler. Seeing as it will be running on gas 90% of the time not having a weber carb shouldn't make any difference at all. Fitting the carb was easy although Ive found I need to buy a new throttle cable as the existing one is too short to reach the throttle linkage on the carb. Halfords and the local car spares place don't stock one. Ill have to raid the the scrapped 80 one more time!
Ive purchased new dizzy cap, rotor arm and leads and Ive fitted the ducellier dizzy. The sump has been filled with fresh oil and Ive whacked on a new oil filter. I think all thats left to do is connect a couple of heater hoses, block off the injector holes, time up the dizzy and see if it will run!
The grand start up ceremony was planned for Sunday but Ive been too busy. Fingers crossed ill get chance during the week sometime.
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Last Edit: Nov 9, 2008 17:48:57 GMT by Lankytim
1987 Maestro 1.6 HL perkins diesel conversion 1986 Audi 100 Avant 1800cc on LPG 1979 Allegro Series 2 special 4 door 1500cc with vynil roof. IN BITS. HERITAGE ISSUES.
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Nov 10, 2008 23:19:53 GMT
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Right, timed it all up, getting a nice big spark from the plug leads, temporarily blocked off the injector holes. Wont run.
The cam timing seems to be going milesw out for some reason. It looks like its slipping on the crank pulley. Whats going on??
Seriously getting pi$$ed off with it now. Ive had enough of retros! I'm going to get something modern that ive only got to put petrol in!
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1987 Maestro 1.6 HL perkins diesel conversion 1986 Audi 100 Avant 1800cc on LPG 1979 Allegro Series 2 special 4 door 1500cc with vynil roof. IN BITS. HERITAGE ISSUES.
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Nov 16, 2008 22:54:22 GMT
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Ok, went away had a cup of tea, watched telly went to bed, woke up, went to work e.t.c e.t.c
Then I remembered "that" Audi...
Went back to it yesterday with a fresh mind and a fresh approach. Timed it all up again, blocked the injector holes with wooden dowells hammered into place and cranked it over. It spluttered a bit and cut out, with the dizzy moved back a bit it burst into life. A little bit of dizzy twiddeling saw a nice smooth idle. Very nice and a real tonic for my mojo!
As I'm still missing a throttle cable I cant drive it (where the f*ck is it, GSF??) and for some reason oil is pouring from the rocker cover when the engine runs, Ive taken it off, reset the gasket and bolted the rocker cover back on a few times, all to no avail. The nuts arnt too tight so I guess the cover must be bent somehow. Maybe I should use some of that red sealant stuff? Anybody been here before? Let me know how you solved the problem!
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1987 Maestro 1.6 HL perkins diesel conversion 1986 Audi 100 Avant 1800cc on LPG 1979 Allegro Series 2 special 4 door 1500cc with vynil roof. IN BITS. HERITAGE ISSUES.
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